2Allington 4th Line Extension · 16 July 2020 CHP Assessment S2856-0300-0001VBT Page 3 Management Summary FCC Environment (UK) Ltd (abbreviated to FCC and referred to as the Applicant

2Allington 4th Line Extension

FCC Environment (UK) Ltd

CHP Assessment


16 July 2020 CHP Assessment

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Document approval Name Signature Position Date

Prepared by: James Bernays

Project Engineer 15/05/2020

Checked by: James Sturman

Lead Consultant 17/05/2020

Reviewed by: Stephen Othen

Technical Director 19/05/2020

Document revision record Revision

no Date Details of revisions Prepared

by Checked

by Reviewed

by

0 21/05/2020 First issue to client JB2 JRS SMO

1 16/07/2020 Updated following Client review JB2 JRS SMO

© 2020 Fichtner Consulting Engineers. All rights reserved.

This document and its accompanying documents contain information which is confidential and is intended only for the use of FCC Environment (UK) Ltd. If you are not one of the intended recipients any disclosure, copying, distribution or action taken in reliance on the contents of the information is strictly prohibited.

Unless expressly agreed, any reproduction of material from this document must be requested and authorised in writing from Fichtner Consulting Engineers. Authorised reproduction of material must include all copyright and proprietary notices in the same form and manner as the original and must not be modified in any way. Acknowledgement of the source of the material must also be included in all references.



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Management Summary FCC Environment (UK) Ltd (abbreviated to FCC and referred to as the Applicant ) is developing an Energy From Waste Facility (the Proposed Extension) on the site of the existing energy from waste plant (the Existing Station) in Allington, Kent. Whilst the Existing Station was constructed as CHP-Ready, the focus of this CHP Assessment Report (the Report) is the Proposed Extension in the context of the Generating Station. The Proposed Extension will operate as a merchant waste treatment facility, with fuel sourced primarily from industrial and commercial and Household waste contracts.

Assuming a design Net Calorific Value (NCV) of 9.5 MJ/kg, the Proposed Extension will process approximately 300,000 tonnes per annum (at the design capacity of 37.5 tph, assuming 8,000 hours availability).

The Proposed Extension has been designed to export power to the National Grid via local connections. The Proposed Extension will generate approximately 31.4 MWe of electricity in full condensing mode (i.e. without heat export) and with average ambient temperature. The Proposed Extension will have a parasitic load (power consumed by the facility under normal operation) of approximately 2.7 MWe. Therefore, the export capacity of the Proposed Extension, with average ambient temperature, will be approximately 28.7 MWe.

The Proposed Extension will also have the capacity to export heat, subject to technical and economic feasibility, which will be suitable for a district heating network. The maximum heat capacity of the district heating network will be subject to the requirements of the heat consumers and confirmed during detailed design stage. For the purposes of this CHP Assessment, Fichtner has assumed a maximum heat capacity of 8 MW thermal (MWth). This capacity is considered feasible from most turbines with minimal plant modifications. The exact turbine maximum heat export capacity will be confirmed during detailed design.

The Environment Agency (EA) Combined Heat and Power (CHP) Ready Guidance, titled ‘CHP Ready Guidance for Combustion and Energy from Waste Power Plants’ (the CHP-ready Guidance) requires Best Available Techniques (BAT) to be demonstrated by maximising the energy efficiency of a plant. Following the screening of potential heat consumers and the development of a network heat demand profile (see the heat demand investigation included in Appendix A of this Assessment), it has been established that technically feasible opportunities exist to export an annual average heat load of up to 2.50 MWth to local heat users and, when accounting for consumer diversity, a peak load of 7.11 MWth.

While the quantity of heat demand identified is sufficient to achieve Primary Energy Savings (PES) in excess of the 10% technical feasibility threshold, it is not sufficient to be deemed ‘Good Quality’ CHP in accordance with the CHP Quality Assurance (CHPQA) scheme. At the proposed heat network load, the Primary Energy Savings (PES) was calculated to be 22.28% and the CHPQA Quality Index (QI) score was 62.2. A QI score of 105 is required at the design stage to be deemed ‘Good Quality’ CHP. The new efficiency criteria set out in the latest CHPQA guidance means that it is unlikely that any energy from waste plant will now reach ‘Good Quality’ CHP status. For reference, the Proposed Extension will require an average thermal export of at least 58.53 MWth to qualify as Good Quality CHP status. Therefore, construction as CHP-Ready will demonstrate BAT for the Proposed Extension. A CHP-Ready Assessment form has been completed and is provided in Appendix C.

Article 14 of the Energy Efficiency Directive requires a cost-benefit assessment (CBA) of opportunities for CHP is when applying for an Environmental Permit (EP). An assessment of the costs and revenues associated with the construction and operation of the proposed district heating network (the Scheme) has been undertaken. The results have been considered in a CBA in accordance with the draft Article 14 guidance document issued by the Environment Agency (EA)



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The results of the CBA indicate that the nominal project internal rate of return and net present value (before financing and tax) are negative. Therefore, it is considered that the proposed heat network does not yield an economically viable Scheme in its current configuration. However, the economic feasibility of the Scheme will be reassessed annually going forward, with a report accompanying each review, to keep track of changing local heat demands and consider any subsidies that support the export of heat.

The Proposed Extension will be designed as CHP-Ready to demonstrate BAT, and will be able to export heat in the future with minimum modification. This is enabled by virtue of having steam export capability designed into the turbine bleed and safeguarded space in a separate building northeast of the turbine hall to house CHP equipment.

At the time of writing this Report, there are no formal agreements in place for the export of heat from the Proposed Extension. To maximise the likelihood of securing the requisite level of heat demand and to maintain momentum in the development process, an outline action plan (detailed in Section 10) has been proposed. This includes provision of annual progress targets to monitor progress and should help to ensure the heat network is delivered in the shortest possible timeframe.

FCC appreciates the benefits associated with maximising energy recovery from the thermal treatment of waste, through the implementation of CHP. FCC is continuing to explore opportunities to export heat from the Proposed Extension and will periodically review this position.



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Contents

Management Summary ................................................................................................................................................ 3

List of abbreviations and units ..................................................................................................................................... 7

1 Introduction ........................................................................................................................................................ 9

1.1 Background .............................................................................................................................................. 9

1.2 The Development Consent Order process ............................................................................................... 9

1.3 Environmental Permit .............................................................................................................................. 9

1.4 The Applicant and Study Team .............................................................................................................. 10

1.5 Purpose of this report ............................................................................................................................ 10

1.6 Project description ................................................................................................................................. 10

1.6.1 The Energy Recovery Facility (ERF) ......................................................................................... 10

1.6.2 Electrical connection .............................................................................................................. 11

1.7 Structure of this report .......................................................................................................................... 11

2 Conclusions ....................................................................................................................................................... 12

2.1 Policy ...................................................................................................................................................... 12

2.2 Technology description .......................................................................................................................... 12

2.3 Study Area - Heat demand investigation ............................................................................................... 12

2.4 Economic assessment ............................................................................................................................ 13

2.5 Energy efficiency measures.................................................................................................................... 13

2.6 EA CHP-Ready guidance ......................................................................................................................... 14

3 Policy ................................................................................................................................................................ 15

3.1 Introduction ........................................................................................................................................... 15

3.2 National planning policy and guidance .................................................................................................. 15

3.2.1 National Planning Statements ................................................................................................ 15

3.2.2 National Planning Policy for Waste ........................................................................................ 15

3.2.3 National Planning Policy Framework ...................................................................................... 16

3.2.4 Net zero carbon policy ............................................................................................................ 16

4 Guidance and legislation .................................................................................................................................. 17

4.1 CHP-Ready Guidance.............................................................................................................................. 17

4.2 Energy Efficiency Directive ..................................................................................................................... 17

5 Technology description .................................................................................................................................... 19

5.1 Site selection .......................................................................................................................................... 19

5.2 Proposed development .......................................................................................................................... 19

5.3 Energy Recovery Facility ........................................................................................................................ 20

5.4 Heat supply system ................................................................................................................................ 21

6 Heat demand investigation .............................................................................................................................. 24

6.1 Identified heat users .............................................................................................................................. 24

6.2 Heat consumer screening ...................................................................................................................... 24

6.3 Heat network profile .............................................................................................................................. 24

6.4 Heat load duration curve ....................................................................................................................... 25

6.5 District heat network design .................................................................................................................. 26



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6.6 Back-up heat source ............................................................................................................................... 27

6.7 Indicative pipe route .............................................................................................................................. 27

7 Economic assessment ...................................................................................................................................... 29

7.1 Fiscal support ......................................................................................................................................... 29

7.2 Technical feasibility ................................................................................................................................ 30

7.3 Primary Energy Savings (PES) ................................................................................................................. 30

7.4 Cost-benefit Assessment (CBA) .............................................................................................................. 31

8 Energy efficiency measures .............................................................................................................................. 33

8.1 Heat and power export .......................................................................................................................... 33

8.2 CHPQA Quality Index .............................................................................................................................. 33

9 EA CHP-Ready guidance ................................................................................................................................... 35

9.1 CHP Envelope ......................................................................................................................................... 35

10 Action Plan........................................................................................................................................................ 37

Appendices ................................................................................................................................................................. 39

A Heat demand investigation .............................................................................................................................. 40

B CBA inputs and key outputs ............................................................................................................................. 41

C CHP-R Assessment Form .................................................................................................................................. 42



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List of abbreviations and units Abbreviation Definition

ACC Air Cooled Condenser

BAT Best Available Technique

BEIS The Department for Business, Energy and Industrial Strategy

C Celsius

CBA Cost Benefit Analysis

CCR Carbon Capture Ready

CCS Carbon Capture and Storage

CfD Contracts for Difference

CHP Combined Heat and Power

CHP-R CHP-Ready

CHPQA CHP Quality Assurance

CIBSE Chartered Institution of Building Services Engineers

DCO Development Consent Order

DH District Heating

DN250 250mm diameter pipework

DNO Distribution Network Operator

EA Environment Agency

EN Energy (policy)

EP Environmental Permit

ERF Energy Recovery Facility

ESCo Energy Services Company

EU European Union

FCC FCC Environment (UK) Ltd

HNDU Heat Networks Delivery Unit

HNIP Heat Network Investment Project

IRR Internal Rate of Return

KCC Kent County Council

KEL Kent Enviropower

KMWLP Kent Minerals and Waste County Plan

LHV Lower Heating Value

MBC Maidstone Borough Council

MJ Megajoules

MW Megawatts

NCV Net Calorific Value

NPPF National Planning Policy Framework

NPPW National Planning Policy for Waste

NPS National Planning Statement

NPV Net Present Value

NSIP Nationally Significant Infrastructure Project

PEIR Preliminary Environmental Impact Report

PES Primary Energy Savings

PINS Planning Inspectorate



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QI Quality Index

RHI Renewable Heat Incentive

RO Renewables Obligation

SoS Secretary of State

SPV Special Purpose Vehicle

TMBC Tonbridge and Malling Borough Council

UK United Kingdom



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1 Introduction

1.1 Background

FCC Environment (UK) Ltd (abbreviated to FCC and referred to as the Applicant) is making an application for a Development Consent Order (DCO) and an Environmental Permit (EP) for a development (the Project/Generating Station) comprising a proposed extension (the Proposed Extension) to the existing Integrated Waste Management Facility (the Existing Station) in Allington, Maidstone, Kent. The Existing Station can treat approximately 560,000 tonnes of non-hazardous residual waste per annum with a generating capacity of up to 42.5 MWe. The Proposed Extension will add an additional waste incineration line (the 4th Line) to the Existing Station capable of treating up to 350,000 tonnes of non-hazardous residual waste per annum with a gross generating capacity of up to 31.4 MWe. Combined, these form the Generating Station which will be capable of managing around 910,000 tonnes of non-hazardous residual waste per annum and with a generating capacity exceeding 50 MWe. Therefore, the Project is a Nationally Significant Infrastructure Project (NSIP) under the Planning Act 2008.

Fichtner has been commissioned by the Applicant to assess the feasibility of supplying heat from the Generating Station to local heat consumers, in support of the Applicant’s DCO and EP applications. The focus of this CHP Assessment Report (the Report) is the Proposed Extension in the context of the Generating Station.

1.2 The Development Consent Order process

The Applicant must submit an application for DCO to the Planning Inspectorate (PINS) who will first decide whether to accept the application. If accepted, PINS will examine the application in accordance with the relevant National Policy Statements (NPS’s) which outline the need for waste and energy infrastructure and the issues to be considered in an application for DCO. The relevant NPSs include: NPS EN-1 (Overarching Energy Policy), NPS EN-3 (Renewable Energy Supply from Waste) and NPS EN-5 (Electricity Networks Infrastructure).

Following the examination, PINS will make a recommendation to the relevant Secretary of State (SoS) which in this case is the SoS for Business, Energy and Industrial Strategy and, should the SoS approve the application, a DCO will be made authorising the construction, commissioning and operation of the Proposed Extension to the Project.

1.3 Environmental Permit

The Applicant must submit an application for an EP to the Environment Agency (EA), who will first decide whether to Duly Make the application. If accepted, the EA will determine the application and as part of this application and in accordance with the EA’s Combined Heat and Power (CHP) Ready Guidance, titled ‘CHP Ready Guidance for Combustion and Energy from Waste Power Plants’ (the CHP-ready Guidance) will determine the specific CHP elements in parallel.

Following determination of the application, the EA will decide whether to grant an EP for the operation of the Proposed Extension. This EP will be granted as a variation of the EP for the Existing Station, which will then cover the combined activities of the Generating Station.



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1.4 The Applicant and Study Team

The Applicant is one of the UK’s leading waste and resource management companies. Its approach is to minimise the amount of waste that ends up in landfill by transforming it into valuable resources wherever possible.

The Applicant came into being in 2012 when Focsa Services (UK) and Waste Recycling Group (both part of global infrastructure, environmental services and energy group FCC Citizen Services) came together under this new brand. The Applicant employs around 2,400 people across the UK and operates a range of waste management sites including energy from waste plants, material recycling facilities and landfill sites.

This Report has been prepared by Fichtner Consulting Engineers (Fichtner). Fichtner is an independent Engineering Consultancy supporting energy and waste projects across the UK and Ireland. Fichtner has supported Clients with the development of CHP Assessments for the DCO applications for the Riverside Energy Park and the Ferrybridge Multifuel facilities, as well as a significant number of heat plans for planning applications and EP applications.

1.5 Purpose of this report

The principal objectives of this CHP Assessment are to:

1. Prepare a CHP Assessment in accordance with the requirements of the CHP-ready Guidance, which will support a DCO application.

2. Provide a technical description of the Proposed Extension and heat export infrastructure.

3. Identify heat export opportunities local to the Project and assess their feasibility for connection to a district heating (DH) network.

4. Assess the feasibility of connecting additional heat sources to the network to maximise benefits of the Scheme.

5. Calculate heat demand and profiles focusing on viable CHP opportunities, accounting for consumer diversity and seasonal variation.

6. Carry out an economic appraisal of the preferred solution in accordance with the requirements of the CHP-ready Guidance on cost-benefit assessment (CBA) for combustion installations.

7. Calculate relevant energy efficiency measures to demonstrate legislative compliance.

8. Produce a CHP-Ready Assessment in accordance with the EA CHP-ready Guidance, including a clear statement on best available technique (BAT), CHP envelope and the CHP-Ready Assessment form.

1.6 Project description

1.6.1 The Energy Recovery Facility (ERF)

The Existing Station is located on land off Laverstoke Road, Allington, Kent, ME16 0LE (The Site). The Site forms part of the 20/20 Business Park within the County administrative boundary of Kent County Council, bordering junction 5 of the M20. The Site is located within a former quarry, the vast majority of which is within the administrative boundary of Tonbridge and Malling Borough Council (TMBC). The remainder of the site (a small portion of land in the south-western corner) lies in the administrative boundary of Maidstone Borough Council (MBC).



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The Existing Station undertakes the treatment of non-hazardous residual waste through 3 combustion lines utilising fluidised bed combustion technology. The Proposed Extension will be located on land to the west of the Existing Station and will likely use a moving grate combustion system. Associated infrastructure for both parts of the Project will be shared across the Site, as detailed in Figure 5.4 of the Preliminary Environmental Impact Report (PEIR).

1.6.2 Electrical connection

The Proposed Extension would include the provision of a new on-Site substation building and equipment to serve the new waste treatment infrastructure, adding to the capacity of the existing on-Site substation serving the Existing Station. This is deemed necessary as the export capacity of the combined Generating Station will, when finished, exceed the available capacity of the existing on-Site substation. The electricity generated by the Proposed Extension would be exported to the local electricity grid (the point of connection will be at the main Maidstone Substation on Lenfield Ave.) via a new dedicated underground cable.

It is intended that the final technical solution for the electrical connection will be progressed by the Distribution Network Operator (DNO) in their role as statutory undertaker for electrical infrastructure in the area and so does not form part of the DCO application for the Proposed Extension.

1.7 Structure of this report

This CHP Assessment is structured as below.

• Section 2 gives the conclusions from each section of this CHP Assessment.

• Section 3 considers national-, regional- and local-level policy on low-carbon energy, and how these support the use of CHP networks in the Project locale.

• Section 4 provides the legislative requirements for projects such as this to conduct a CHP Assessment.

• Section 5 gives an overview of the technology that will be used by the Proposed Extension, including a discussion of the possible heat supply system.

• Section 6 details the investigation of nearby heat demands and the outline design of a suitable DH network to service these demands.

• Section 7 discusses the financial returns of the DH network outlined in Section 6 using the EA cost benefit analysis (CBA) methodology.

• Section 8 sets out how development of a DH network affects the overall energy efficiency of the Proposed Extension.

• Section 9 provides a summary of the CHP-Ready Assessment undertaken for the Proposed Extension.

• Section 10 provides an indicative action plan for the implementation of a scheme for the export of heat to identified heat users.



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2 Conclusions

2.1 Policy

The main policy drivers in determining the DCO are the National Policy Statements (NPS’s). Specifically relating to CHP guidance, Part 4 of NPS EN-1 sets out the assessment principles which should be taken into consideration for energy NSIPs.

Although the National Planning Policy Framework (NPPF) does not contain specific policies relating to CHP, they do highlight the overall need to adopt principles of sustainability and maximum efficiency from new developments. The NPPF is underpinned by the principles of sustainable development, towards which CHP can substantially contribute.

CHP will also contribute to the UK achieving net zero carbon by 2050, as required under the Climate Change Act 2008 (2050 Target Amendment) Order 2019, by providing low-carbon and resource-efficient heating technology that is applicable across most demand sectors.

2.2 Technology description

The Proposed Extension will have a gross electrical output of 31.4 MWe, (design when operating in fully condensing mode), with a parasitic load of 2.7 MWe with the balance exported to the local electricity grid. Therefore, the Proposed Extension will export approximately 28.7 MWe in full condensing mode. For the purposes of this CHP Assessment it is assumed that the maximum heat export capacity is 8 MWth, which is suitable for the identified DH network. The maximum heat capacity will be subject to the requirements of the heat consumers and confirmed during detailed design stage. Based on the DH network identified within this CHP Assessment, the average heat load is expected to be 2.31 MWth, resulting in an electrical export of approximately 28.4 MWe.

Several arrangements for heat recovery and export from the Proposed Extension are available. Given the requirements of the heat consumers (discussed subsequently), flexibility in terms of export temperatures and capacity, and the associated environmental benefits, steam extraction from the turbine is considered the most favourable solution. It is proposed that heat will be transferred to a closed hot water circuit via a series of condensing heat exchangers and supplied to consumers through a pre-insulated buried hot water pipeline, before being returned to the Project site for reheating. This technology is well proven and highly efficient.

2.3 Study Area - Heat demand investigation

Both desktop and field studies were undertaken by Ener-Vate to get an accurate impression of current and planned heat demands near the Site. A Study Area of 10 km from the Project was used to identify which heat loads could feasibly be connected to a DH network. The full heat demand investigation is provided in Appendix A.

Based on the outcomes of these studies, and assuming generic heat demand profiles, the heat demand of the preferred heat consumers has been estimated. The average heat demand of the proposed DH network has been estimated to be 2.31 MWth at point of use, translating to an annual heat demand of 20,205.91 MWh/annum.

A heat demand profile has been developed to assess diurnal and seasonal variation in heat demand for the proposed DH network. The heat demand profile indicates that base and peak loads can be met by the Proposed Extension independently, except for periods of downtime when a back-up system will be required. These periods of downtime could be covered by the Existing Station, as it



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was constructed as CHP-Ready and therefore will require minimal modification to be connected to a heat network. Detailed techno-economic modelling will be undertaken when there is a better understanding of consumer heat demands.

2.4 Economic assessment

Fichtner understands that a special purpose vehicle (SPV) will be created to organise and sell heat to connected consumers. This SPV, in the form of an energy services company (ESCo), will also cover the costs of build-out and operation of the proposed DH network from the site boundary to the end users. This includes the provision of any back-up boilers deemed necessary by the ESCo. FCC will be responsible for the development of heat infrastructure within the Site boundary and will sell heat to the ESCo wholesale as opposed to the heat users directly.

The costs and revenues associated with the construction and operation of the proposed DH network up to the site boundary has been undertaken. This has been inputted into the EA’s CBA template. The CBA takes account of heat supply system capital and operating costs, heat sales revenue and lost electricity revenue as a result of diverting energy to the heat network that would otherwise continue through the Turbine to generate electricity.

The results of the CBA indicate that the estimated £1.6 million capital investment will not be offset by heat sales revenue from FCC to the assumed ESCo. Both the nominal project internal rate of return (before financing and tax) (IRR) and net present value (NPV) are negative. Raising the heat sales price to above £26.58/MWh, while keeping the DH network in its current form, will give a minimum IRR of 17.0% and a positive NPV. This will have effects on the profitability of the ESCo. A lower wholesale power price will also reduce the revenue ‘lost’ from reduced power export and so increase the financial viability of exporting heat. However, this is controlled by external factors that cannot be significantly influenced by the parties considered in this Report.

The economic feasibility of the Scheme will be reassessed annually going forward, with a report accompanying each review, to keep track of local heat demands and consider any subsidies that support the export of heat. FCC is continuing to explore opportunities to export heat from the Proposed Extension and will periodically review this position throughout the lifetime of the Facility.

As construction of a district heating network is currently not economically feasible, the Proposed Extension will be built to be CHP-Ready. As such, the Proposed Extension will meet the requirements of BAT tests outlined in the EA CHP Ready Guidance.

2.5 Energy efficiency measures

In order to qualify as technically feasible under the draft Article 14 guidance, the heat demand must be sufficient to achieve high efficiency cogeneration, equivalent to at least 10% savings in primary energy usage compared to the separate generation of heat and power. When operating in fully condensing mode (i.e. without heat export) the Proposed Extension will achieve a primary energy saving (PES) of 21.26%, which is above the technical feasibility threshold defined in the draft Article 14 guidance. The proposed DH network will result in PES of 22.28 % which is also above the technical feasibility threshold and would therefore be technically feasible to supply.

To be considered ‘Good Quality’ CHP under the CHPQA scheme, the quantity of heat exported to a heat network must be sufficient to achieve a Quality Index (QI) of at least 105 at the design stage (reducing to 100 at the operational stage). Recent changes to CHPQA guidance (released in December 2018) mean that the maximum QI score which could be achieved by the proposed heat network would be 66.4. On this basis, any heat network would not qualify as Good Quality CHP.



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The efficiency criteria set out in the latest CHPQA guidance means that it is unlikely that any energy from waste plant will now achieve ‘Good Quality’ CHP status. For reference, the Proposed Extension would need to export at least 58.53 MWth for the Scheme to be deemed Good Quality CHP at the design stage.

2.6 EA CHP-Ready guidance

A CHP-Ready Assessment has been carried out as part of this CHP Assessment and the completed assessment form is presented in Appendix C.



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3 Policy

3.1 Introduction

This section demonstrates how the Proposed Extension meets the clear preference for plant that provides CHP which is emphasised in relevant national and local policy requirements relating to the provision of CHP.

3.2 National planning policy and guidance

3.2.1 National Planning Statements

The National Planning Statements (NPS’s) were published in July 2011 and set out the Government’s objectives for the development of nationally significant infrastructure projects (NSIP’s).

NPS EN-1 (Overarching Energy Policy) outlines the Government’s policy for the delivery of major energy infrastructure in England and Wales. NPS EN-1 recognises that there is a significant need for energy infrastructure, identifies technology specific impacts and reaffirms the UK Government’s current objectives relating to carbon reduction as follows:

• The Government’s legally binding target is to cut greenhouse gas emissions by 80% by 2050, compared to 1990 levels (this has since been superseded, as detailed in Section 3.2.4);

• The UK is committed to sourcing 15% of its total energy from renewable sources by 2020; and

• The transition to a secure, low carbon energy system is challenging, but achievable, and will require major investment in cleaner power generation.

Part 4 of NPS EN-1 sets out the assessment principles which should be taken into consideration for energy NSIPs. Paragraphs 4.6.1-4.6.12 of Part 4 outline the consideration of CHP and state that:

• Thermal generating station applications are required to include CHP or at least consider the use of CHP;

• Applicants are required to consult with stakeholders, including; potential heat customers, Homes England, Local Enterprise Partnerships and Local Authorities; and

• Applicants should explain how the technology required to produce a CHP enabled generating station should not affect the ability to be Carbon Capture Ready (where applicable) or set out any constraints which would prevent this.

NPS EN-3 (Renewable Energy Supply from Waste) applies to nationally significant energy from biomass/waste infrastructure in England and Wales with at least 50 MW electrical generating capacity. NPS EN-3 states that new developments should consider CHP as part of its application or demonstrate that CHP has been considered and that PINS can seek further information should this not be provided. Section 2.5 of NPS EN-3 states that biomass/EfW generating stations can be configured to produce CHP.

3.2.2 National Planning Policy for Waste

The National Planning Policy for Waste (NPPW) was published in October 2014 and sets out the Government’s ambition to develop a more sustainable and efficient approach to resource use and management. The NPPW recognises that planning can help to deliver the national waste strategy by helping to secure the re-use, recovery or disposal of waste without endangering human health



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and without harming the environment. One of the key objectives within the NPPW is the delivery of sustainable development and resource efficiency, including the provision of modern infrastructure, local employment opportunities and wider climate change benefits by driving waste management up the waste hierarchy.

Section 4 of the NPPW states that local authorities should identify sites for waste management facilities in local plans and that waste planning authorities should consider the suitable siting of energy recovery facilities to enable the utilisation of the heat produced as an energy source in close proximity to suitable potential heat customers.

3.2.3 National Planning Policy Framework

The National Planning Policy Framework (NPPF) was last updated on 19 June 2019. Paragraphs 149-154 of the NPPF explain that planning plays a key role in helping shape places to secure radical reductions in greenhouse gas emissions, and in supporting the delivery of renewable and low carbon energy and associated infrastructure. This is central to the economic, social and environmental dimensions of sustainable development. In particular, paragraph 151 c) stipulates that plans should “identify opportunities for development to draw its energy supply from decentralised, renewable or low carbon energy supply systems and for co-locating potential heat customers and suppliers”.

Local planning authorities are advised to adopt proactive strategies to mitigate and adapt to climate change. When determining planning applications, local planning authorities should:

• not require applicants for energy development to demonstrate the overall need for renewable or low carbon energy, recognising that even small-scale projects provide a valuable contribution to cutting greenhouse gas emissions; and

• approve the application if its impacts are (or can be made) acceptable (page 45).

3.2.4 Net zero carbon policy

On 27 June 2019, the Climate Change Act 2008 (2050 Target Amendment) Order 2019 came into force in the UK. This introduced a target of at least a 100% reduction of greenhouse gas emissions (compared to 1990 levels) in the UK by 2050. This legally binding target supersedes the previous target of an 80% reduction by 2050 and is expected to intensify the national focus within the relevant NPS’s (see Section 3.2.1).



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4 Guidance and legislation

4.1 CHP-Ready Guidance

The EA published the CHP-ready Guidance in February 20131. The CHP-ready Guidance applies to the following facilities, which will be regulated under the Environmental Permitting (England and Wales) Regulations 2016:

• new combustion power plants (referred to as power plants) with a gross rated thermal input of 50 MW or more; and

• new EfW plants with a throughput of more than 3 tonnes per hour of non-hazardous waste or 10 tonnes per day of hazardous waste.

The Proposed Extension will be regulated as a waste incineration facility with a throughput of more than 3 tonnes per hour. Therefore, the requirements of the CHP-ready Guidance will apply.

The CHP-ready Guidance requires developers to demonstrate BAT for a number of criteria, including energy efficiency. One of the principal ways of improving energy efficiency is through the use of CHP, for which three BAT tests exist. The first involves considering and identifying opportunities for the immediate use of heat off-site. Where this is not technically or economically possible, the second test involves ensuring that the plant is built as CHP-ready. The third test requires carrying out periodic reviews to determine whether the situation has changed and there are opportunities for heat use off site.

4.2 Energy Efficiency Directive

From 21 March 2015, operators of certain types of combustion installations are required to carry out a CBA of opportunities for CHP when applying for an EP. This is a requirement under Article 14 of the Energy Efficiency Directive and applies to a number of combustion installation types. As a new electricity generation installation with a total aggregated net thermal input of more than 20 MW, the Proposed Extension will be classified as an installation type 14.5(a).

In April 2015, the EA issued draft guidance on completing the CBA, entitled ‘Draft guidance on completing cost-benefit assessments for installations under Article 14 of the Energy Efficiency Directive’2. Figure 1 describes the process that must be followed for type 14.5(a) and 14.5(b) installations.

1 CHP Ready Guidance for Combustion and Energy from Waste Power Plants v1.0, February 2013

2 Draft guidance on completing cost-benefit assessments for installations under Article 14 of the Energy Efficiency Directive, V9.0 April 2015



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Figure 1: CBA methodology for type 14.5(a) and 14.5(b) installations



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5 Technology description

5.1 Site selection

The reasons for selecting the Site for the Proposed Extension are as follows:

• There is already the Proposed Extension on the Site with permanent planning consent and EP issued and regulated by the EA identified as such within both the adopted and the emerging KMWLP;

• The Existing Generating Station operates successfully with minimal environmental effects and few formal complaints from residents and businesses to date. It operates a successful and collaborative CLG which disseminates information to the local community;

• The Existing Station has been in full operation since 2008 is operated by Kent Enviropower (KEL) which is a wholly owned subsidiary of the Applicant, one of the UK’s leading waste and resource management companies with unrivalled successful experience of developing, managing, and running built waste management solutions;

• The Existing Station is easily accessible from J5 of the M20 motorway, which provides onward access to the strategic highway network throughout the South East of England. This is a region that has a shortfall in residual waste treatment capacity and will be exposed to increased pressure as remaining landfill provision is exhausted;

• The M20 is the main arterial route for vehicles travelling to the port of Dover, which is the greatest single point of export of RDF from the UK to continental Europe;

• The Proposed Extension would be well located to exploit future emerging opportunities to export heat, via a district heating network, to residential, commercial, or public buildings and schools;

• The Site is not restricted by statutory or non-statutory environmental designations or other built or natural constraints that would constrain the options that could be developed;

• The Existing Station already benefits from much of the essential infrastructure that is necessary for the export of electricity.

• KCC has historically identified the Existing Station as suitable for an extension due to local and regional needs to divert waste from landfill and maximise the sustainable generation of power; and

• Ahead of undertaking detailed assessment work, there appear to be no other insurmountable factors or constraints that would potentially render the Proposed Extension unacceptable in this location.

5.2 Proposed development

The main activities associated with the Proposed Extension will be the combustion of incoming non-hazardous/non-recyclable residual waste to create steam and the generation of electricity in a steam turbine/generator.

The Proposed Extension includes one waste incineration line, waste reception hall, main thermal treatment process, turbine hall, on-site facilities for the storage of residues and wastewater, flue gas treatment, new shared stack, boiler, shared Generating Station devices and systems for controlling operation of the Generating Station and recording and monitoring conditions for the Proposed Extension.



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In addition to the main elements described, the Proposed Extension will also include shared weighbridges, a fire water tank, auxiliary fuel and air supply systems, site fencing and security barriers, external hardstanding areas for vehicle manoeuvring, internal access roads and car parking, transformers, electricity substation, offices, workshop, stores and staff welfare facilities. A significant proportion of this infrastructure is already present on the Site due to the Existing Station. Pre-existing and newly developed infrastructure will be shared within the Project.

5.3 Energy Recovery Facility

The Proposed Extension will have a gross electrical output of approximately 32 MWe, (design when operating in fully condensing mode), with a parasitic load of 2.7 MWe with the balance exported to the local grid. Therefore, the Proposed Extension will export approximately 29.3 MWe in full condensing mode.

The maximum heat export capacity will be subject to detailed design. However, from Fichtner’s experience a maximum heat export of 8 MWth is feasible from most turbines with minimal plant modifications. This heat export capacity will minimise the effect on turbine efficiency when heat is not being exported. The thermal export capacity will be subject to the requirements of the heat consumers and confirmed during detailed design stage.Based on the heat network identified within this CHP Assessment, the average heat load is expected to be 2.31 MWth, resulting in an electrical export of approximately 28.4 MWe. However, at the time of writing this Report, there are no formal agreements in place for the export of heat from the Proposed Extension. The power exported may fluctuate as the calorific value of the waste fluctuates, and if heat is exported from the Proposed Extension to local heat users in the future.

The nominal capacity of the Proposed Extension will be approximately 37.5 tonnes per hour of mixed non-hazardous residual wastes, with a net calorific value (NCV) of 9.5 MJ/kg. The plant will have an estimated availability of around 8,000 hours. Therefore, the plant will have a nominal capacity of approximately 300,000 tonnes per annum.

An indicative schematic of the combustion process is shown in Figure 2.



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Figure 2: Process schematic for the Proposed Extension

The heat released by the combustion of the incoming waste will be recovered by means of a water tube boiler, which is integral to the furnace and will produce (in combination with superheaters) high pressure superheated steam at 70 bar(a) and 430°C. The steam from the boiler will then feed a high-efficiency steam turbine which will generate electricity. The turbine will have a series of extractions at different pressures that will be used for preheating air and water in the steam cycle.

The remainder of the steam left once it has passed through the turbine will be condensed back to water to generate the pressure drop to drive the turbine. A fraction of the steam will condense at the exhaust of the turbine in the form of wet steam, however the majority will be condensed and cooled using an air-cooled condenser (ACC). The condensed steam will be returned as feed water in a closed-circuit pipework system to the feed water taken to the boiler.

Depending on the requirements of the heat users, either high pressure steam or hot water could be supplied. High pressure steam could be extracted from the turbine and piped directly to the heat users. Alternatively, low pressure steam exiting the turbine could pass through an onsite heat exchanger located in the shared District Heating building to heat up water for use in a heat network. The volume of steam extracted would vary depending on the heat load requirements of the heat users.

5.4 Heat supply system

Heat is typically supplied from the energy recovery process in the form of steam and / or hot water, depending on the grade of heat required by end consumer(s). However, the export of heat will reduce the energy available for electricity generation and export by the Proposed Extension.



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The most commonly considered options for recovering heat from EfW facilities are discussed below.

1. Heat recovery from the Air-Cooled Condenser (ACC)

Wet steam emerges from the steam turbine typically at around 40°C. This energy can be recovered in the form of low-grade hot water from the condenser depending on the type of cooling implemented.

An ACC will be installed at the Proposed Extension. Steam is condensed in a large air-cooled system which rejects the heat in the steam into an air flow, which is rejected to atmosphere. An ACC generates a similar temperature condensate to mechanical draught or hybrid cooling towers, but cooling this condensate further by extracting heat for use in a heat network requires additional steam to be extracted from the turbine to heat the feedwater prior to being returned to the boiler. The additional steam extraction reduces the power generation from the plant.

2. Heat extraction from the steam turbine

Steam extracted from the steam turbine can be used to generate hot water for district heating schemes. District heating schemes typically operate with a flow temperature of 90 to 120°C and return water temperature of 50 to 80°C.

Steam is preferably extracted from the turbine at low pressure to maximise the power generated from the steam. Extraction steam is passed through a condensing heat exchanger(s), with condensate recovered back into the feedwater system. Hot water is pumped to heat consumers for consumption before being returned to the primary heat exchangers where it is reheated.

Where steam is used for heating hot water, it is normally extracted from the two lowest pressure bleeds on the turbine, depending on the heating requirements of the heat consumers.

This source of heat offers the most flexible design for a heat network. The steam bleeds can be sized to provide additional steam above the plant’s parasitic steam loads. However, the size of the heat load needs to be clearly defined to allow the steam bleeds and associated pipework to be adequately sized. Increasing the capacity of the bleeds once the turbine has been installed can be difficult.

3. Heat extraction from the flue gas

The temperature of cool flue gas from the flue gas treatment plant is typically around 140°C and contains water in vapour form. This can be cooled further using a flue gas condenser to recover the latent heat from the moisture. This heat can be used to produce hot water for district heating in the range 90 to 120°C. This method of heat extraction does not significantly impact the power generation from the plant.

Condensing the flue gas can be achieved in a wet scrubber. However, the scrubber temperature is typically no more than 80°C, which restricts the hot water temperature available for the consumer. Additionally, condensing water vapour from the flue gas reduces the flue gas volume and hence increases the concentration of non-condensable pollutants within it. The lower volume of cooler gas containing higher concentrations of some pollutants would likely require a different stack height to effect adequate dispersion. The additional cooling of the flue gas results in the frequent production of a visible plume from the chimney and although this is only water vapour it can be misinterpreted as pollution. The water condensed from the flue gas needs to be treated and then discharged under a controlled consent.

The most favourable solution to supply heat to a conventional heat network is by extracting steam from the turbine, for the following reasons.

1. The heat requirements of the identified consumers (as described in Section 6) are suited to the temperatures attainable from the turbine with minimal power loss due to diverting energy to the heat circuit.



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2. The use of a flue gas condenser would generate a visible plume which would be present for significant periods of the year. This is not desirable as it will significantly add to the visual impact of the Generating Station and as such has not been included.

3. Extraction of steam from the turbine offers the most flexibility for varying heat quality and capacity to supply variable demands or new future demands, which is particularly relevant for facilities developed as CHP-Ready.

Extraction of steam from the turbine, heat transfer to a hot water circuit and delivery of heat to consumers can be facilitated by well proven and highly efficient technology. The Existing Station was constructed as CHP-Ready applying the same heat extraction philosophy as the Proposed Extension. Keeping the heat extraction method the same for the Proposed Extension allows for simpler co-ordination and combination of heat supplies into one heat network system.



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6 Heat demand investigation

6.1 Identified heat users

Ener-Vate, a consultancy firm specialising in the decentralised energy sector, undertook desk and field studies within the Study Area to identify a list of potential heat users. The complete Heat Demand Investigation can be found in Appendix A, and considers opportunities from both existing heat loads and planned developments.

6.2 Heat consumer screening

From the available heat loads, Ener-Vate identified 5 heat consumers (listed in Table 1) that could potentially be connected along a single route travelling south from the Generating Station. These heat consumers have been approached to ascertain the level of interest and willingness to work with the Applicant to deliver a connection to a DH network. Records of this correspondence can be found in the Heat Demand Investigation (refer to Appendix A).

Full details on the screening process used by Ener-Vate, and the geographical and logistical constraints identified, can be found in their Heat Demand Investigation in Appendix A.

Table 1: Screened heat users and their estimated annual heat demands

Reference number

Name Estimated annual heat demand at point of use [MWh/a]

1 Proposed 106-dwelling residential development

331

2 Allington Primary School 271

3 Palace Wood Primary School 116

4 Maidstone Hospital 17,004

5 MidKent College 4,154

Total 21,876

Source: Appendix A, accessed July 2020

6.3 Heat network profile

A generic heat demand profile has been developed to model the seasonal and diurnal variation in heat demand for the potential DH network. This has allowed the annual average and peak heat demands (in MWth) to be calculated from Fichtner’s experience on similar projects.

The heat network profile for the proposed DH network is shown in Figure 3 and illustrates the expected variation in heat demand during a typical day in different seasons. The profile represents heat demand at the point of use and therefore does not include DH network heat losses.



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Figure 3: Modelled heat network profile

Daily and seasonal variation in heat demand is typical for DH networks serving industrial, commercial and office consumer types, which form the basis of the proposed heat network. Increasing the number and type of consumers connected to a network diversifies heat demand and helps to reduce the impact of the peak demand of any individual consumer, since it is less likely that peak demands will coincide.

Key parameters of the modelled heat network are given in Table 2.

Table 2: Proposed heat network and heat supply parameters

Parameter Unit Value

Estimated annual heat load at point of use MWh/a 21,876.00

Average heat demand at point of use MWth 2.50

Peak heat demand at point of use MWth 7.11

Assumed peak-to-average ratio - 2.85

Assumed maximum heat export from turbine MWth 8.00

6.4 Heat load duration curve

The heat load duration curve presented in Figure 4 displays the instantaneous heat demand for the proposed heat network, arranged in order of decreasing magnitude, across the year.

Since detailed heat demand data is not available at this stage, the heat load duration curve has been developed on the basis of instantaneous heat demand at each hour of the day for each month, producing a total of 288 data points (24 hours/day x 12 months/year). This demand data does not account for diversity or heat losses.

0.0

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t D

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Figure 4: Modelled heat load duration curve

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6.5 District heat network design

Heat distribution between the Project and the identified potential heat consumers would likely use buried pipework. Pre-insulated steel pipes would be used to supply pressurised hot water to the customer, and to return cooler water. Where pipes are small, two pipes may be integrated within a single insulated sleeve. For larger heat demands, large bore pipes would be installed as a single insulated run. Pipe technology is well proven and can provide a heat distribution system with a 30 year plus design life. Additional pipe work can be added retrospectively, and it is reasonably straightforward to add branches to serve new developments.

Modern heat-insulated piping technology enables hot water to be transferred large distances without significant losses. Where the topography creates challenges, heat exchangers and additional pumping systems can be installed to create pressure breaks, enabling the DH network to be extended.

Heat delivery arriving at a heat consumer’s premises usually terminates using a secondary heat exchanger. The heat exchanger is typically arranged to supply heat to a tertiary heating circuit upstream of any boiler. The water in the tertiary circuit is boosted to the temperature required to satisfy the heating needs of the building.

Water is pumped continuously around the system. Pumps are operated with 100% standby capacity to maintain heat in the event of a pump fault. Pumps are likely to utilise variable speed drives to minimise energy usage.

The following conservative design criteria relate to a typical hot water network utilising conventional heat extraction (as detailed in Section 5.4) and have been used to size the heat transmission pipe diameters. Where possible, the flow temperature, will be reduced to minimise heat losses, and will be subject to the requirements of the heat consumers. Flow and return



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temperatures presented in Table 3 have been selected on the basis of the likely requirements of the heat consumers.

Table 3: District heating network design criteria

Parameter Value

Water supply temperature to consumer 100°C

Water return temperature from consumer 65°C

Distance between flow and return pipes 150 mm

Soil temperature 10°C

Depth of soil covering 600 mm

Using the above design criteria and allowing for the estimated heat demand for the preferred network, the primary hot water transmission pipe size has been calculated as DN250 to the Site boundary. This is an indicative figure and will be subject to heat demand verification and subsequent network design. Assuming the difference between the flow and return temperatures (deltaT) remains constant, it will be possible to reduce the flow temperature in line with the CIBSE Code of Practice without impacting the pipe size and thereby reduce system energy losses.

6.6 Back-up heat source

The Proposed Extension has been designed to achieve an availability of 91.32% (i.e. 8,000 operational hours per year). During periods of routine maintenance or unplanned outages the Proposed Extension will not be operating; however, the heat consumers will still require heat. Therefore, there will be a need, somewhere within the heat distribution system, to provide a back-up source of heat to meet the needs of the heat consumers.

At the heat network scale under consideration, the back-up plant will probably comprise oil- or gas-fired hot water heaters (boilers) with a separate dedicated chimney stack. Back-up boilers are typically designed to ensure that the peak heat export capacity can be met but also provide sufficient turndown to supply smaller summer loads with reasonable efficiency.

An additional option is the use of the adjacent Existing Station as a back-up heat source when the Proposed Extension is unavailable. The Existing Station was constructed as CHP-Ready (representing BAT at time of construction) and can therefore be incorporated into a planned heat network with minimal modification. Both facilities will be under the Applicant’s control; therefore, planned maintenance outages have the potential to be co-ordinated and staggered to ensure a constant supply of heat to the DH network.

The back-up strategy would need to be developed as part of the detailed design phase. Subject to detailed heat demand modelling, and depending on the choice of back-up heat source, thermal stores may also be considered as an option to lessen reliance on the back-up plant. These would store excess heat generated during off peak periods for use during times of peak heat demand.

Indicative costs of installing and operating back-up plant have been included in the economic assessment in Section 7.4.

6.7 Indicative pipe route

An indicative pipe route has been developed by Ener-Vate and is given within Appendix A. For reference, this has been extracted and is presented in Figure 5.



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Figure 5: Indicative heat network pipe route. Green nodes indicate confirmed interested parties at time of Ener-Vate investigation.

Source: Appendix A, accessed July 2020

To maximise the likelihood of securing the requisite level of heat demand and to maintain momentum in the development process, an outline action plan (detailed in Section 10) has been proposed. This includes provision of annual progress targets to monitor progress and should help to ensure a viable heat network is delivered in the shortest possible timeframe.



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7 Economic assessment

7.1 Fiscal support

The following fiscal incentives are available to energy generation projects and impact the feasibility of delivering a DH network.

1. Capacity Market for electricity supplied by the Proposed Extension

Under the Capacity Market, subsidies are paid to electricity generators (and large electricity consumers who can offer demand-side response) to ensure long-term energy security for the UK. The Capacity Market does not prioritise low-carbon energy or specific technologies. Capacity Agreements are awarded in a competitive auction and new plants (such as the Proposed Extension) are eligible for contracts lasting up to 15 years.

The Capacity Market was suspended in November 2018 following a ruling by the European Court of Justice that it constitutes illegal state aid3. However, following analysis of the mechanism, State Aid was re-approved in October 2019 and the Capacity Market is considered to be reinstated.

Based on eligibility criteria prior to the suspension, the Proposed Extension will be eligible for Capacity Market support. Since Capacity Market support is based on electrical generation capacity (which would reduce when operating in CHP mode), these payments will act to disincentivise heat export and have therefore not been included in the economic assessment.

2. Renewable Heat Incentive

The Renewable Heat Incentive (RHI) was created by the Government to promote the deployment of heat generated from renewable sources. However, no funding announcements have been published for the RHI post March 2021. Therefore, it is unlikely the Proposed Extension will receive incentives under the RHI. In addition, to be eligible, the plant in question must not receive any other support or subsidy from public funds including any support received under the Capacity Market. Therefore, if the Proposed Extension qualifies for support under the Capacity Market mechanism, it will not be eligible for the RHI.

3. Contracts for Difference

Contracts for Difference (CfD) has replaced the Renewables Obligation (RO) as the mechanism by which the Government supports low carbon power generation. CfD de-risks investing in low carbon generation projects by providing a guaranteed fixed price (the Strike Price) for electricity over a 15 year period. In the second CfD allocation round (executed on 11 September 2017) no funding was allocated for Energy from Waste plants, with or without CHP, on the basis that these are now considered established technologies. The third allocation4 round was executed in September 2019 with contracts awarded to eligible less established technologies only5.

The Department for Business, Energy and Industrial Strategy (BEIS) released a consultation 6on changes ahead of the fourth allocation round for CfD. The consultation closed on 22 May 2020. BEIS was consulting on reopening Pot 1 for “established technologies” which includes solar, onshore wind, energy from waste with CHP, hydro, landfill gas and sewage gas. Pot 1 has been

3 https://www.gov.uk/government/collections/electricity-market-reform-capacity-market

4https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/832924/Contracts_for_Difference_CfD_Allocation_Round_3_Results.pdf

5 https://www.gov.uk/government/collections/contracts-for-difference-cfd-third-allocation-round

6 https://www.gov.uk/government/consultations/contracts-for-difference-cfd-proposed-amendments-to-the-scheme-2020

https://www.gov.uk/government/collections/electricity-market-reform-capacity-market

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/832924/Contracts_for_Difference_CfD_Allocation_Round_3_Results.pdf

https://assets.publishing.service.gov.uk/government/uploads/system/uploads/attachment_data/file/832924/Contracts_for_Difference_CfD_Allocation_Round_3_Results.pdf

https://www.gov.uk/government/collections/contracts-for-difference-cfd-third-allocation-round



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closed in the last 2 allocation rounds, but the consultation proposes reopening it. The justification is that the Strike Price at auction will likely be below or near the wholesale price for electricity, meaning these projects would effectively be zero subsidy. In this case, the CfD might not provide financial support, but it would provide long term security on the price to be achieved, which can be useful in securing financing. On this basis, the Proposed Extension would not receive support under the CfD mechanism.

4. Heat Network Investment Project funding

The Heat Network Investment Project (HNIP) aims to deliver carbon savings and create a self-sustaining heat network market through the provision of subsidies, in the form of grants and loans, for heat network projects. £320 million has been made available to fund the HNIP between 2019 and 2022. Following a pilot scheme, which ran from October 2016 to March 2017, the BEIS has confirmed that funding will be available for both public and private sector applicants, and that there will be no constraints on scheme size.

The HNIP may be a source of funding that would improve the economic viability of the DH network. The level of funding that the Proposed Extension could achieve under this program would depend on the final size of the network and commercial arrangements.

Relatively modest grant funding, to assist local authorities in heat network project development, is also available through the Heat Networks Delivery Unit (HNDU), although this could not be received by the Proposed Extension directly and would not serve to support project delivery.

7.2 Technical feasibility

Step 3 of the CBA methodology requires identification of existing and proposed heat loads which are technically feasible to supply. The draft Article 14 guidance states that the following factors should be accounted for when determining the technical feasibility of a scheme, pertaining to a type 14.5(a) installation.

1. The compatibility of the heat source(s) and load(s) in terms of temperature and load profiles

The CHP scheme has been developed on the basis of delivering heat at typical district heating conditions (refer to Section 6.5). It is reasonable to assume that identified heat consumers would be able to utilise hot water at the design conditions. Consumer requirements (in terms of hot water temperature and load profiles) will need to be verified in any subsequent design process prior to the implementation of a DH network. Therefore, the heat source and heat load are compatible.

2. Whether thermal stores or other techniques can be used to match heat source(s) and load(s) which will otherwise have incompatible load profiles

Conventional thermal stores or back-up boilers (as detailed in Section 6.6) will likely be included in the Scheme to ensure continuity of supply. The specific arrangement will be selected when there is greater certainty with regards heat loads.

3. Whether there is enough demand for heat to allow high-efficiency cogeneration

High-efficiency cogeneration is cogeneration which achieves at least 10% savings in primary energy usage compared to the separate generation of heat and power. Primary energy saving (PES) is considered in Section 7.3.

7.3 Primary Energy Savings (PES)

To be considered high-efficiency co-generation, the Scheme must achieve at least 10% savings in primary energy usage compared to the separate generation of heat and power. PES have been



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calculated in accordance with European Commission Delegated Regulation (EU) 2015/2402 of 12 October 2015 Annex II part (b), using the following assumptions.

1. Annual nominal throughput capacity of 300,000 tonnes per annum based on an NCV of 9.5 MJ/kg.

2. Nominal gross electrical output (expected capacity in fully condensing mode) of 31.4 MWe.

3. Parasitic load of 2.7 MWe.

4. Z ratio of 6.80.

5. Efficiency reference values for the separate production of heat and electricity have been taken as 80% and 25% respectively as defined in Commission Delegated Regulation (EU) 2015/2402 of 12 October 20157.

When operating in fully condensing mode (i.e. without heat export) the Proposed Extension will achieve a PES of 21.26%. This is in excess of the technical feasibility threshold defined in the draft Article 14 guidance. The inclusion of heat export at the design case level of 2.50 MWth anticipated for the proposed heat network increases PES to 22.28%. On this basis, the Proposed Extension will qualify as a high-efficiency cogeneration operation when operating in CHP mode.

7.4 Cost-benefit Assessment (CBA)

It is proposed that a special purpose vehicle (SPV) to be created sell heat to connected consumers. The SPV, in the form of an energy services company (ESCo), will also cover the costs of build-out and operation of the proposed DH network from the Project site boundary to the heat consumers. This will include the provision of any back-up boilers deemed necessary by the ESCo. It is proposed at this stage that FCC will be responsible for the development of heat infrastructure within the site boundary and will wholesale heat to the ESCo as opposed to the heat users directly.

A CBA has been carried out on the selected heat load, in accordance with Section 3 of the draft Article 14 guidance. The CBA uses an Excel template, ‘Environment Agency Article 14 CBA Template.xlsx’ provided by the EA, with inputs updated to correspond with the specifics of this Heat Plan.

The CBA model considers:

1. the revenue streams (heat sales);

2. the costs streams for the heat supply infrastructure (construction and operational, including back-up plant); and

3. the lost electricity sales revenue, over the lifetime of the scheme (electricity sales and fiscal benefits).

The following assumptions have been made:

1. The Scheme will commence operation in 2026.

2. The heat export infrastructure required to export heat from the Proposed Extension to the Project site boundary is estimated to have a capital cost of approximately £0.13 million, to be constructed in the final year of an overall three-year construction programme.

3. The on-site heat station within the CHP building will cost approximately £1.45 million, split over a three-year construction programme. For the sake of this analysis this heat station solely services the Proposed Extension and does not connect to the Existing Station.

4. Back-up boilers will be provided by the ESCo, and therefore are not considered.

7 http://eur-lex.europa.eu/legal-content/EN/TXT/?uri=CELEX%3A32015R2402



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5. Back up boiler fuel costs will be provided by the ESCo, and therefore are not considered.

6. Operational costs have been estimated based on similar sized projects.

7. Heat sales revenue will be £10/MWh8 from FCC to the ESCo.

8. Electricity sales revenue will be £57/MWh9.

9. A secondary heat source will supply 5.04% of annual heat exported.

The results of the CBA indicate that the nominal project internal rate of return and net present value (before financing and tax) over 30 years are negative. Unattractive returns are the result of a relatively low identified heat demand and a low wholesale heat price to the ESCo. Therefore, the proposed DH network is not considered to yield an economically viable scheme in its current configuration. Model inputs and key outputs are presented in Appendix B.

The proposed DH network can be made more financially attractive through the following options:

1. obtaining a government subsidy (such as the HNIP); and/or

2. conducting, continued investigations to find more potential heat users willing to work with the ESCo in joining the proposed DH network.

More heat consumers may be encouraged to join the network as construction of the physical infrastructure gets underway once an economically-viable scheme has been configured.

Assuming no additional network changes, increasing the heat price charged to the ESCo above £26.58/MWh gives a positive nominal NPV. This increase must be balanced against the financial needs of the ESCo, who will be bearing most of the costs of network build-out and maintenance.

8 ‘Initial Commercial Modelling Report for Fichtner’, prepared by Ener-Vate March 2020, accessed April 2020.

9 https://www.gov.uk/government/publications/updated-energy-and-emissions-projections-2018; accessed 4 May 2020. Wholesale costs (electricity baseload) used from reference scenario

https://www.gov.uk/government/publications/updated-energy-and-emissions-projections-2018



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8 Energy efficiency measures

8.1 Heat and power export

The Z ratio, which is the ratio of reduction in power export for a given increase in heat export, can be used to calculate the effect of variations in heat export on the electrical output of the Proposed Extension. A value of 6.80 was obtained following the approach set out in CHPQA Guidance Note 2810, assuming steam extraction at a pressure of 2.0 bar(a). The heat and power export has been modelled across a range of load cases and the results are presented in Table 4.

Table 4: Heat and power export

Load case Heat export at turbine (MWth)

Gross power generated (MWe)

Net power exported (MWe)

Z ratio

1. No heat export - 31.4 28.7 N/A

2. Proposed network heat load (see Section 6.3)

2.50 31.1 28.4 6.80

3. Maximum heat export capacity

8.0 30.2 27.5 6.80

The results indicate that, for the heat consumers identified in Section 6.3, load case 2 (corresponding to an average heat export of 2.50 MWth) will result in a net power export of 28.4 MWe.

8.2 CHPQA Quality Index

The Combined Heat and Power Quality Assurance (CHPQA) Programme is an energy efficiency best practice programme initiative by the UK Government. CHPQA aims to monitor, assess and improve the quality of CHP in the UK. In order to prove that a plant can qualify for ‘Good Quality’ CHP status, a QI of at least 105 must be at the design, specification, tendering and approval stages. Under normal operating conditions (i.e. when the scheme is operational) the QI threshold drops to 100. The QI for CHP schemes is a function of their heat efficiency and power efficiency in accordance with the following formula:

𝑄𝐼 = 𝑋𝜂𝑝𝑜𝑤𝑒𝑟 + 𝑌𝜂ℎ𝑒𝑎𝑡

where:

𝜂𝑝𝑜𝑤𝑒𝑟 = power efficiency; and

𝜂ℎ𝑒𝑎𝑡 = heat efficiency.

The power efficiency within the formula is calculated using the gross electrical output and is based on the gross calorific value of the input fuel. The heat efficiency is also based on the gross calorific value of the input fuel. The coefficients X and Y are defined by CHPQA based on the total gross electrical capacity of the plant and the fuel / technology type used.

In December 2018, the Government released a revised CHPQA Standard Issue 7. The document sets out revisions to the design and implementation of the CHPQA scheme. These revisions are intended

10 CHPQA Guidance Note 28, 2007



S2856-0300-0001VBT Page 34

to ensure schemes which receive Government support are supplying significant quantities of heat and delivering intended energy savings. The following X and Y coefficients apply to the Proposed Extension:

• X value = 220; and

• Y value = 120.

The QI and efficiency values (based on a gross calorific value of 11.01 MJ/kg) have been calculated in accordance with CHPQA methodology for various load cases and the results are presented in Table 5.

Table 5: QI and efficiency calculations

Load case Gross power efficiency (%)

Heat efficiency (%)

Overall efficiency (%)

CHPQA QI

1. No heat export 27.4 - 27.4 60.3

2. Proposed network heat load (see Section 6)

27.1 2.2 29.3 62.2

3. Maximum heat export capacity

26.4 7.0 33.3 66.4

The results indicate that the Proposed Extension will not achieve a QI score in excess of the ‘Good Quality’ CHP status threshold (QI of 105 at the design stage) for the average heat load exported to the proposed DH network. The efficiency criteria set out in the latest CHPQA guidance, most notably the underpinning requirement to achieve an overall efficiency (NCV basis) of at least 70%, means that none of the load cases considered will enable heat export from the Proposed Extension to be considered Good Quality.

For reference, assuming the same Z ratio as set out in the preceding section, an average heat export of 58.5 MWth would be required for a district heating network to achieve ‘Good Quality’ CHP status for the Proposed Extension. It is clear that the design proposed for heat recovery, based on the local heat demand, is not capable of supplying a sufficient quantity of heat at the design heat conditions.



S2856-0300-0001VBT Page 35

9 EA CHP-Ready guidance This Report includes a CHP-Ready Assessment which considers the requirements of the EA’s CHP-ready Guidance. The completed CHP-Ready Assessment form is provided in Appendix C.

9.1 CHP Envelope

The ‘CHP envelope’ as outlined under requirement 2 of the CHP-ready Guidance, which identifies the potential operational range of a new plant where it could be technically feasible to operate electrical power generation with heat generation, is provided in Figure 6.

The points defining the CHP envelope are as follows.

• A: minimum stable load (with no heat extraction).

• B: minimum stable load (with maximum heat extraction).

• Line A to B: minimum electrical power output for any given heat load (corresponds to the minimum stable plant load).

• C: 100% load (with maximum heat extraction).

• D: 100% load (with no heat extraction).

• Line D to C: maximum electrical power output for any given heat load (corresponds to 100% plant load).

• E: proposed operational point of the Proposed Extension, based on the proposed DH network.

• Unrestricted operation: if a selected heat load is located in this region, the Proposed Extension will have the ability to operate at any load between minimum stable plant load and 100% plant load whilst maintaining the selected heat load.

• Restricted operation: if a selected heat load is located in this region, the Proposed Extension will not have the ability to operate over its full operational range without a reduction in heat load.



S2856-0300-0001VBT Page 36

Figure 6: Graphical representation of CHP envelope for proposed heat network

The proposed operational point (point E) represents the annual average heat demand exported to the proposed DH network detailed in section 5 and 6.1. The operational range for the Proposed Extension will ultimately be subject to the required hot water flow temperature and final steam turbine selection, which are subject to detailed design.

DCHPƞ = 29.02%

PES = 21.26%E

CHPƞ = 31.17%PES = 22.28%

CCHPƞ = 35.92%

PES = 24.44%

ACHPƞ = 27.55%

PES = 21.26%

BCHPƞ = 32.54%

PES = 23.59%

Unrestricted Operation Restricted Operation

-

5.0

10.0

15.0

20.0

25.0

30.0

35.0

- 1.0 2.0 3.0 4.0 5.0 6.0 7.0 8.0 9.0

Ne

t El

ect

rica

l Exp

ort

(M

W)

Heat Load (MW)

100% MCR Minimum stable boiler load Proposed Operational Point



S2856-0300-0001VBT Page 37

10 Action Plan It is theoretically feasible to export heat from the Proposed Extension to potential heat consumers. Additional heat consumers may emerge as development of the project progresses.

In order to build the Proposed Extension as CHP from the outset and realise the full energy export potential of the facility it is recommended that an action plan is implemented. The outcome of this action plan will be to ensure that the Proposed Extension can expand as a CHP facility by maintaining momentum with key stakeholders in the development process.

The action plan should be structured and have well defined objectives, involving all the local stakeholders and be supported at the highest levels within FCC. The action plan should identify the strategic phases required for the heat network development. Potential heat consumers are more likely to engage in the process if they know that there is a realistic prospect of a connection; it is therefore proposed that the action plan would be implemented alongside the construction program. The following project development phases are suggested.

Initial phase

1. Follow up initial heat load plan and research with a detailed heat load survey when more information is available from potential consumers.

2. Engage with the local authority.

3. Agree annual progress targets with the EA and review annually.

4. Build a detailed database of potential heat consumers.

5. Target buildings identified as potential heat consumers.

6. Carry out heat use surveys at targeted heat consumers.

7. Verify seasonal heat demand over time.

8. Develop pipe routing options and / or phases.

9. Size and configure the required infrastructure.

10. Confirm technical viability.

11. Develop capital cost estimates.

12. Develop cost estimates for operation and maintenance.

13. Assess economic viability.

14. Establish a carbon saving benchmark.

15. Draw up a project master plan.

16. Set up a joint working group with stakeholders.

17. Develop a marketing strategy.

Intermediate phase

1. Undertake detailed negotiations with heat consumers.

2. Finalise initial heat demand.

3. Finalise sizing of infrastructure.

4. Discuss pipe routing options with the local highway authority.

5. Finalise pipe routing.

6. Tender for initial infrastructure.

7. Sign heads of terms for heat supply agreements with Energy Services Company (ESCo).

8. Install initial infrastructure.

9. Sign heat supply agreement with an ESCo.



S2856-0300-0001VBT Page 38

10. Commission the heat network.

Final phase

1. Market the scheme.

2. Expand the scheme by adding heat consumers if possible.

3. Expand the scheme by developing on existing infrastructure or connecting additional heat sources if possible.

Based on consumers identified as part of this CHP Assessment, the Proposed Extension will be CHP enabled to be able to deliver up to 8 MWth, subject to heat demand verification and plant design. To achieve CHP status, the scope of the proposed heat network needs to be well defined and technically assessed to prove that it is deliverable. Potential consumers need to be approached so that there is a high degree of certainty regarding heat sales. The economic viability of the heat network then needs to be confirmed.

Constructing a detailed and reliable database of potential heat consumers is a key activity. This should be revisited and updated at least every two years so that new developments can be added and existing developments can be updated. Change in building ownership and use can affect the potential to be a heat customer. Boiler age can be tracked so that the consumer can be targeted when they are already considering investing in a new heating system.



S2856-0300-0001VBT Page 39

Appendices



S2856-0300-0001VBT Page 40

A Heat demand investigation

Allington Integrated Waste Management

Facility – Proposed Extension

Heat Demand Investigation July 2020

Heat Demand Investigation

1

Contents

1 Introduction ......................................................................................... 3

Project Introduction................................................................................................... 3

Competence............................................................................................................. 4

District Heat Networks .............................................................................................. 5

National Comprehensive Assessment ....................................................................... 9

2 Heat Demand Investigation Process ................................................... 12

Introduction ............................................................................................................ 12

Step 1 – Initial Desktop Study .................................................................................. 12

Step 2 – Field Study ................................................................................................ 15

Step 3 – Screening Process .................................................................................... 16

Steps 4 and 5 – Indicative Network Design and Commercial Modelling .................... 17

3 DH Network Constraints .................................................................... 19

4 Screening Process ............................................................................. 21

Introduction ............................................................................................................ 21

Existing Heat Loads ................................................................................................ 21

New Buildings/Developments .................................................................................. 30

5 Concluded Heat Loads ...................................................................... 34

Initial Conclusions ................................................................................................... 34

Western Route ........................................................................................................ 38

Southern Route ...................................................................................................... 40

Final Conclusions .................................................................................................... 44

6 Consultation to Date .......................................................................... 47

7 Heat Network Design & Further Opportunities ................................... 50

Ancillary Backup System(s) ..................................................................................... 50

Additional Heat Opportunities ................................................................................. 50

8 References ........................................................................................ 51

Appendix 1 – Heat Load Data for Existing Buildings ................................. 52


2

Appendix 2 – Permitted Planning Applications ......................................... 55

Appendix 3 – Submitted Planning Applications ........................................ 61

Reg 3 Applications ............................................................................................................ 64

Appendix 4 – Unconstrained Developments ............................................. 65

Appendix 5 – Briefing Note ...................................................................... 66

Appendix 6 – KCC Meeting Minutes (16th September 2019) .................... 69

Appendix 7 – KCC Meeting Minutes (2nd April 2020) ................................ 70

Appendix 8 – Consultation Record ........................................................... 71

0


3

1 Introduction

Project Introduction

FCC are developing plans to extend their current Integrated Waste Management Facility

(referred to as the Existing Station) located in Allington, Maidstone, Kent (the Site).

FCC recognize the economic efficiencies and environmental benefits that can arise from

direct heating and power and, given the nature of the Site and existing properties and

planned developments within the locale, FCC are keen to explore if a heat off-take

business opportunity exists to either invest in directly, or be attractive enough to market

the opportunity with an established community of Energy Services Company (ESCo)

developers.

Heat would be distributed via a District Heating Network (DH Network) and accordingly,

FCC have worked to identify options for heat off-takes. This Heat Demand Investigation

(the Investigation) sets out any heat opportunities that may exist, the constraints (both

physical and in terms of time) and the likelihood of these heat opportunities becoming a

realistic prospect at a time when connections can be made.

The reality is that the Proposed Extension is ideally located to benefit from several

potential significant (in terms of kilo watt thermal (kWhth)) heat opportunities that are likely

to be delivered along-side the Proposed Extension. The Proposed Extension will be CHP-

Ready.

As set out in Chapter 1.0, under the Planning Act 2008, as amended, onshore generating

stations in England, which, when constructed or extended, are expected to have a

generating capacity of more than 50MW electrical (MWe), are defined as Nationally

Significant Infrastructure Projects (NSIP’s). As such Section 31 of the Planning Act

requires a Development Consent Order (DCO) to be obtained for NSIPs.

National Planning and Policy Guidance and Guidance published by the Environment

Agency is detailed in sections 3.2 National Planning Policy and Guidance of the

Preliminary Environmental Impact Report (PEIR) and section 4 of the CHP Assessment

prepared by Fichtner to which this Heat Demand Investigation is appended.

The Association for Decentralised Energy’s 2018 Market Report[5] states estimates that

DH Networks can deliver up to 5.7 Mega Tonnes of CO2 (MTCO2) emissions reduction in

residential and non-residential buildings by 2030, which represents around a six-fold

increase on today’s DH Network carbon emissions savings level.

With 5 out of 10 households stating they would join a DH Network if they would pay no

more than what they currently pay, domestic consumers have a fairly positive attitude to

DH Networks. It is hoped that the increase in DH Network implementation throughout the

UK will give domestic consumers confidence that low-carbon heat can be as reliable and

cost-effective as traditional methods.


4

Competence

Ener-Vate Consultancy Ltd was created five years ago to provide a truly independent

service to developers of low carbon and renewable energy projects to help and advise

them to maximise the investment through the delivery of District Heating Networks (DH

Network) – essential under the current energy market reform for certain lower carbon

generation fuel sources. Formed by three individuals who were pivotal to the growth and

development of the E. ON Community Energy Team, we felt the experience and

knowledge gained in developing residential, mixed use and city scale projects had value

as an independent to other developers and existing asset owners. Each of the three

Directors has numerous years within the low carbon and renewable energy field with

credible track records in the District Heat Network sector. We differentiate ourselves from

similar consultancy service providers by essentially becoming part of the client team and

fully embracing the projects personally.

We fully appreciate the whole value chain and requirements to deliver DH Network

schemes and develop opportunities that are viable in every essence. Key to this is

customer and stakeholder engagement in person and developing relationships and trust.

We have a strong track record in this area and contract negotiation.

Furthermore, the skills within Ener-Vate Consultancy Ltd offer a service to new residential

developers who’re considering the adoption of DH Network technology for their sites.

Having worked on many new build schemes both in and out of London, we feel our

knowledge within this sector also has great value to offer developers in guiding, advising

and developing commercial and technical structures that deliver added value.

For further information and detail on previous projects and client relationships we have,

see the link below.

www.ener-vate.co.uk

http://www.ener-vate.co.uk/


5

Ener-Vate have previously worked closely with FCC and developers to inform the wider

community of the benefits of a DH Network system and are currently working on projects

in Scotland – Millerhill near Edinburgh and Drumgray near Cumbernauld Ener-Vate and

FCC have now built a strong relationship with Edinburgh, North Lanarkshire and

Midlothian councils enabling the delivery of a possible DH Network to the Shawfair

development (https://www.shawfair.co.uk/) and residential and commercial consumers

to the north of Airdrie potentially included a new hospital

(https://drumgray.fccenvironment.co.uk/).

District Heat Networks

The use of DH Networks in order to deliver low-carbon heating to residential and mixed-

use developments is considered a contributory valuable technology to deliver the UK’s

national policy to reduce the carbon intensity of heating.

District heating has been operational across the UK for many years, as it has across

Northern Europe, particularly within the Scandinavian regions. The UK Government has

for a number of years been promoting this technology through large programmes of

investments for feasibility studies through the Heat Network Delivery Unit (HNDU) and

more recently, through a commitment of capital / loan arrangements for both the public

and private sector under their Heat Network Infrastructure Programme (HNIP).

District Heating Infrastructure is a relatively simple concept of distributing heat in the form

of hot water to connected buildings. Each building has a Heat Interface Unit (HIU) suitably

sized to meet the building requirements that transfers the heat from the DH Network to

the traditional, internal wet radiator systems.

Heat generation sources are flexible and come in many forms including heat pumps,

Combined Heat and Power (CHP) units and Energy from Waste (EfW). Generation plant

is typically installed in Energy Centres (EC) situated close to the buildings and/or

developments in which they are serving.

District heating in the UK has been difficult to implement historically due to the existence

of an extensive natural gas network and a regulated energy supply market which allows

customers the freedom to change suppliers to obtain preferential commercial terms. The

high capital and operational costs of associated infrastructure can also be a barrier for

DH Networks, with a notable lack of domestic DH Network pipe suppliers. Further

developers of private residential properties have been reluctant to utilise DH Networks as

it often increases development costs.

However, DH Networks can be successful in circumstances where:

• new-build housing developments are aligned with low-carbon heat sources in terms

of timing and proximity,

• developments that offer high heat demand density, for example apartment blocks,

• there is a high level of Local Authority / housing association properties; and

• additional commercial/industrial civic (e.g. schools and hospitals) consumers are

also connected to the district heating network to improve network diversity and

offset wide fluctuations in heat demand associated with the UK weather.

https://www.shawfair.co.uk/

https://drumgray.fccenvironment.co.uk/


6

The main process constituents of a district heating scheme are:

• Primary heat station equipment at the point of supply,

• Secondary heat station equipment at the point of delivery; and

• A flow and return pipe system circulating hot water between the point of supply

and the points of use.

The primary heat station would recover energy from the turbine and generate hot water

which is then treated to form a brine solution and transferred via a primary heat exchanger

to a district heating network. Circulation pumps would pump this hot water to the

secondary heat stations at the consumer’s property and then return cooled water back

to the heat source for reheating and recirculation. Condensate return pumps in the

primary heat station would return the condensate from the primary heat exchanger to the

main condensate tank. The primary heat station would be likely to comprise:

• Primary shell and tube heat exchanger(s),

• Condensate return pumps,

• District heating circulation pumps,

• Pressurisation system,

• Heat meters,

• Back up boilers (if required); and

• All other associated equipment.

The secondary heat station at the consumer would be likely to comprise a plate heat

exchanger which enables the exchange of energy from the hot water to the consumers

heating system. This is normally located within the consumer’s boiler house but can be

in other locations. The interface connections between the district heating network and

the consumers heating system will typically comprise:

• Plate heat exchanger,

• Local controls,

• Heat meter,

• Flow isolation valve,

• Return isolation valve,

• Drain down point; and

• Electrical & control connections.


7

The National Planning Statements (NPSs) were published in July 2011 and set out the

Government’s objectives for the development of nationally significant infrastructure

projects (NSIPs).

NPS EN-1[1] (Overarching Energy Policy) outlines the Government’s policy for delivery of

major energy infrastructure in England and Wales. NPS EN-1 recognises that there is a

significant need for energy infrastructure, identifies technology specific impacts and

reaffirms the UK Government’s current objectives relating to carbon reduction as follows:

• The Government’s legally binding target is to cut greenhouse gas emissions by 80%

by 2050, compared to 1990 levels(see para 3.1.14 below)The UK is committed to

sourcing 15% of its total energy from renewable sources by 2020; and

• The transition to a secure, low carbon energy system is challenging, but achievable,

and will require major investment in cleaner power generation.

Part 4 of NPS EN-1 sets out the assessment principles which should be taken into

consideration for energy NSIPs. Paragraphs 4.6.1-4.6.12 of Part 4 outline the

consideration of CHP and state that:

• Thermal generating station applications are required to include CHP or at least

consider the use of CHP;

• Applicants are required to consult with stakeholders, including; potential heat

customers, Homes England, Local Enterprise Partnerships and Local Authorities;

and

• Applicants should explain how the technology required to produce a CHP enabled

generating station should not affect the ability to be Carbon Capture Ready (where

applicable) or set out any constraints which would prevent this.

NPS EN-3[2] (Renewable Energy Supply from Waste) applies to nationally significant

energy from biomass/waste infrastructure in England and Wales with at least 50 MWe

generating capacity. NPS EN-3 states that new developments should consider CHP as

part of its application or demonstrate that CHP has been considered and the Planning

Inspectorate can seek further information should this not be provided. Section 2.5 of NPS

EN-3 states that biomass/EfW generating stations can be configured to produce CHP.

On 27 June 2019, the Climate Change Act 2008 (2050 Target Amendment) Order

2019[3] came into force in the UK. This introduced a target of at least a 100% reduction

of greenhouse gas emissions (compared to 1990 levels) in the UK by 2050. This legally

binding target supersedes the previous target of an 80% reduction by 2050 and is

expected to intensify the national focus on the requirement for new biomass and waste

infrastructure to exploit CHP opportunities.


8

DH Networks – Pipe Technology

Heat distribution between the Proposed Extension and offsite heat consumers would use

pre-insulated buried pipework to supply pressurised hot water to the consumer using a

system of flow and return pipes, therefore returning cooled water.

The ‘spine’ of the DH Network utilises large bore pipes that are installed as a single

insulated run. Typically, running off the DH Network spine is a series of ‘branches’ utilising

smaller diameter pipework to feed each connection. These branches can sometimes use

two pipes integrated within a single insulated sleeve (examples shown below).

Using a ‘spine’ and ‘branch’ system allows additional pipework to be added to the DH

Network retrospectively, and it is reasonably straightforward to add branches to serve

new buildings/developments. Pipe technology is well proven and can provide a heat

distribution system with a 30 year plus design life as per the CIBSE Code of Practice.

Modern heat-insulated piping technology enables hot water to be transferred long

distances without significant losses. Where the topography creates challenges, heat

exchangers and additional pumping systems can be installed to create pressure breaks,

enabling the DH Network to be extended.

Heat arriving via the DH Network will reach a designated plant room located within the

consumer’s building, at which point it will be transferred to the internal heating system

and boosted to the required temperature using a HIU.

Figure 1-1 DH Network Flow and Return Pipes

Figure 1-2 Single and Twin DH Network Pipes


9

Table 1-1 UK Current and Projected Heat Consumption for the South East per Annum

Hot water is pumped continuously around the DH Network providing a ‘base load’ to each

consumer. Ancillary back-up systems (usually in the form of boilers) meet any peak

demands exceeding the base load and are also designed to provide all heat (base load

and peak load) should the heat source in the case the Proposed Extension not be

functioning, for example during maintenance periods.

National Comprehensive Assessment

The ‘National Comprehensive Assessment of the Potential for Combined Heat and Power

and District Heating and Cooling in the UK’[4] (NCA), dated 16th December 2015 and

published by Ricardo Energy and Environment (Ricardo EAE) Ltd for the Department of

Energy and Climate Change (DECC) has been addressed prior to the Investigation.

The NCA document has two related purposes; firstly, to fulfil a legal requirement placed

on all EU Member States to undertake a National Comprehensive Assessment to

establish potential for high efficiency co-generation (CHP) and efficient district heating

and cooling (DHC); Secondly, the document was produced to help the UK in its overall

heat policy development. The requirement to undertake a Nationally Comprehensive

Assessment to establish the potential for DHC and CHP is now set out in the Directive

2012/27/EU on energy efficiency (EED or the Directive).

The NCA involves determining the spatial distribution of the heat and cooling

consumption of all sectors in the UK based on 2012 data, and projects what these figures

may be in 2025, as well as the technical potential for high-efficiency solutions.

For the South East region, in which the Generating Station is located, Table 1-1 has been

derived showing current and projected heat consumption per sector in the South East of

England per annum:

Sector 2012 Consumption (TWh) 2025 Consumption (TWh)

Industry (incl. Agriculture) 13 12

Figure 1-3 Heat Interface Unit (HIU)

Table 1-1 Current & Projected Heat Consumption per Sector


10

Commercial Services 3 3

Public Sector 2 2

Residential 41 36

Total 60 53

Further to this, a technical potential for high-efficiency solutions study was conducted as

part of the NCA. Table 1-2 shows the distribution of Waste Incinerator Heat and Industrial

Waste Heat available using DH Networks per devolved administration / English region per

annum in 2025.

Devolved Administration / Region Waste Incinerator Heat

(TWhth) Industrial Waste Heat (TWhth)

Wales 0 0

Northern Ireland 0 0

North East 0 0

North West 0 1

Yorkshire & Humber 0 0

East Midlands - 0

West Midlands 0 0

East of England 0 0

London 1 0

South East 1 1

South West - -

Total 3 3

Unfortunately, Ricardo EAE have not presented more precise figures to one or two

decimal places in the NCA, and so rounding errors have occurred in Tables 1-1 and 1-2.

Nevertheless, it is evident that the South East is the most promising area to implement

DH Networks using energy from waste as the primary heat source1.

Figure 1-4 shows the area in which ‘South East England’ captures, taken directly from the

NCA using the now decommissioned DECC National Heat Map.

1 Note – The technical potential of the high-efficiency energy from waste solutions have been calculated independently

of each other with no reference to economic factors.

Table 1-2 Waste Incinerator and Industrial Waste Heat per Devolved Administration / Region per Annum1


11

Figure 1-4 DECC National Heat Map for South East England


12

2 Heat Demand Investigation Process

Introduction

The Investigation has been conducted by following a proprietary 5-step process (Figure

2-1) that essentially performs a ‘screening’ process.

The screening process aims to gradually omit Heat Loads based on a number of factors

explained below.

Figure 2-1 Heat Demand Investigation Process

Step 1 – Initial Desktop Study

The Initial Desktop Study is designed to identify and quantify all Heat Loads (the quantity

of heat a building/development is likely to consume in the form of a kWhth/annum value)

within a 10km radius (the Study Area) of the Existing Station.

Heat Loads are split in to two categories:

1. Existing Heat Loads – these are all existing buildings/developments within the

Study Area stated above (not including domestic properties); and

2. Planned Heat Loads – these are buildings/developments with submitted planning

applications to Local Authorities (LA) within the Study Area.

Heat Loads for the two categories are calculated using different methods explained

below.

Category 1 – Existing Heat Loads

All available existing Heat Loads are identified and quantified within the Study Area using

heat mapping tools and Geographic Information System (GIS) software.


13

These Heat Loads were then mapped to show the distribution of potential Heat Loads

within the Study Area using a grid consisting of 2km2 squares to categorise the Heat

Loads for ease of data evaluation (Figure 2-2). Each small red dot represents one Anchor

Load (see below).

All existing load data for Figure 2-2 is available in Appendix 1.

GIS software was used to trace building outlines to determine the m2 Gross Internal Floor

Area (GIFA) of each identified building. Following this, Google Maps 360° Street View was

used to find the number of storey’s per building.

The following equations were used to quantify each Heat Load:

𝑁𝐼𝐹𝐴 𝑜𝑓 𝐵𝑢𝑖𝑙𝑑𝑖𝑛𝑔 = 𝑚2 𝐺𝐼𝐹𝐴 × 𝑁𝑜. 𝑜𝑓 𝑆𝑡𝑜𝑟𝑒𝑦𝑠 × 𝑁𝐼𝐹𝐴 𝐹𝑎𝑐𝑡𝑜𝑟

where:

• NIFA2 is defined as the Net Internal Floor Area of a building, and

• The NIFA Factor is a percentage applied to convert the GIFA to NIFA. This is

typically 90% (or 0.9) unless stated otherwise.

Then:

𝐸𝑥𝑖𝑠𝑡𝑖𝑛𝑔 𝐻𝑒𝑎𝑡 𝐿𝑜𝑎𝑑 = 𝑁𝐼𝐹𝐴 𝑜𝑓 𝐵𝑢𝑖𝑙𝑑𝑖𝑛𝑔 × 𝑘𝑊ℎ𝑡ℎ/𝑚2 𝑉𝑎𝑙𝑢𝑒

• where the kWhth/m2 value is a value derived using industry standard benchmarks

provided by bodies such as the Building Services Research and Information

Association (BSRIA), the Chartered Institution of Building Services Engineers

(CIBSE) and the Department for Business, Energy and Industrial Strategy (BEIS),

as well as datasets taken from past projects.

The Existing Heat Load equation therefore gives a projected annual heat consumption in

the form of a kWhth value.

Category 2 – Planned Heat Loads

Planned Heat Loads are identified using information provided through Local Authority

(LA) planning portals. The planning portals contain documents for each planning

application that are available to the general public such as location plans, masterplans,

and accommodation schedules.

The three documents mentioned above are key to both identifying and quantifying the

Planned Heat Loads.

1. Locations plans give information as to where the development is situated,

2 The Net Internal Floor Area (NIFA) is defined as the usable area within a building measured to the face of the internal finish of

perimeter or party walls ignoring skirting boards and taking each floor into account (BREEAM 2018).


14

Figure 2-2 Existing Loads Including Grid Structure


15

2. Masterplans give information as to where buildings are situated within the site

boundary,

3. Accommodation schedules contain more granular information such as the m2

floor plan of each building and any relevant phasing schedules for the

development.

Using these documents along with the industry standard benchmarks mentioned in

Section 2.2.10 allows indicative planned Heat Loads to be estimated using the same

equations as in Sections 2.2.8 and 2.2.9.

Planned Heat Loads are estimations using the information provided only and are subject

to change as development details may change through the planning determination

process.

At the time of the Investigation, there are 120 developments with planning applications

submitted to the LA’s within the Study Area.

Although each development has been identified in terms of location, quantifying the Heat

Load for every planned development is an extremely resource-heavy task.

Due to the unpredictable nature of planning applications – such as changes in building

use and size, phasing schedules, and ultimately, whether those planning applications

under determination will be approved or not this Investigation has only quantified planned

Heat Loads for developments that are not physically constrained (see below).

Physical constraints are defined, for this Investigation, as a barrier that would add

significant time, capital cost and subsequently operational costs associated with having

to overcome the barrier. These are elaborated on in Section 3.

Step 2 – Field Study

The field study began by assessing the topography of the Study Area with a site visit in

order to evaluate the Study Area and assess what obvious constraints could limit the

implementation of a DH Network to link the Proposed Extension to the Heat Loads

identified in Step 1.

The Field Study and topography assessment included:

• Looking at local building types and their respective ownership (privately or Local

Authority/Government owned),

• Assessment of how the physical constraints that could potentially prohibit/limit

(make uneconomical) DH Network route’s – such as major highways, railway lines,

steep inclines, and trees (with Tree Protection Orders) – could be overcome,

• Potential roads and/or footpaths that the DH Network route could follow whilst

causing as little disruption to local traffic as possible, and

• Any further observations that may adversely affect the implementation of a DH

Network between the Proposed Extension and the identified Heat Loads.


16

Heat Loads identified in this Investigation may be omitted from the Study Area due to

being ‘unviable’ because of the physical constraints identified in the Field Study. In reality,

whilst these Heat Loads will not be included in this Investigation, the data remains

available to the Applicant and will be updated/reviewed periodically to assess whether

those Heat Loads have become viable in the future as a result of changes.

For example, Network Rail typically do not grant easements/access above or through

bridges without significant scrutiny. This is, of course, attributable to their duty of keeping

all infrastructure under their control safe for the general public.

Whilst the Applicant has been granted a Compulsory Purchase Order (CPO) that may

allow them to access land without the owner’s permission, the legal, design and capital

costs as well as time constraints that are associated with having to overcome physical

constraints can quickly deem a DH Network of this size economically unviable.

Therefore, for this Investigation, physical constraints that cannot be overcome without

significant time and resources are viewed as a physical barrier to the development of a

DH Network and thus FCC have assessed whether a case for a DH Network exists

without having to overcome any physical constraints.

Step 3 – Screening Process

Once the available Heat Loads have been identified and quantified in Steps 1 and 2 of

the Investigation, they can then be assessed through a more detailed ‘screening’ analysis

in which Heat Loads are gradually screened out of the Investigation on the basis of

viability.

The screening process provides for the identification of Heat Loads according to a set of

questions as detailed below:

• Outliers – is the Heat Load in question situated nearby to any other identified

Heat Loads?

• Is the Heat Load in question physically constrained?

• Do the capital costs incurred by adding a ‘branch’ to the ‘spine’ of the DH

Network outweigh the income provided by the Heat Load?

• Are there any other reasons why a Heat Load cannot be deemed viable?

Each Heat Load identified is treated as an individual case, and as such every Heat Load

may not have a definitive ‘yes’ or ‘no’ answer to the questions above. For these Heat

Loads, professional judgement is used based on the experience of the numerous

consultants involved in this Investigation as to whether or not it should be included in the

next stage of the Investigation.

Again, it must be stressed that although these Heat Loads are omitted from this

Investigation, all data captured is still available and they may be considered at a later date

should the answers to the questions above change or circumstances change requiring

the viability of the Heat Load to be reassessed.


17

Consultation

Prior to the lockdown introduced as a result of COVID-19 the Applicant was able to meet

with Kent County Council (KCC) to discuss any opportunities available to the Applicant

in terms of heat off-take.

KCC have been enthusiastic about the Applicant’s plans to implement a DH Network,

and such have been cooperative in providing the Applicant with contacts at some of the

Heat Loads deemed viable within the Study Area.

These buildings/developments that passed the Screening Process were then contacted

to determine what desire, if any, they would have to use the low-carbon heat available

from the Proposed Extension and subsequent DH Network.

A standardised approach was adopted for each meeting which generally followed the

format below:

• General introductions between parties,

• Presentation/Briefing by the Applicant on the Generating Station, heat export

potential, and the development programme,

• Presentation on DH Networks,

• Risks and Benefits associated with DH Network, and

• Questions and Answers.

Unfortunately, due to the current situation regarding Covid-19, potential customer

contact has not progressed as planned. However, meetings have still taken place and

contact has been initiated by both FCC and Ener-Vate to these prospective customers

(see Section 5).

Steps 4 and 5 – Indicative Network Design and

Commercial Modelling

The first three stages of the Investigation facilitates the design of indicative DH Network

routes, and consequently the commercial modelling of each route to provide a financial

feasibility appraisal for a number of given scenarios.

Indicative routes were designed to take the most cost-effective path to each prospective

Heat Load with a network ‘spine’ beginning at the Proposed Extension and ending at the

final Heat Load. The smaller ‘branches’ connected to the ‘spine’, linked smaller Heat

Loads or outliers on route to the Anchor Load and the Proposed Extension.

The commercial model referred to above is a proprietary model owned by Ener-Vate

Consultancy Limited that uses industry standard assumptions (such as those mentioned

in Section 2.2.10) and data collected from past projects to estimate all associated costs

and revenues for the project over a period of 40 years.

A list of assumptions used for this Investigation is shown in Figure 2-3 for reference.


18

Figure 2-3 Commercial Modelling Assumptions

Commercial Model: Allington HDI

Sheet: Report

Assumptions

Model timeline

Model start date 01-Jan-22 Date

Concession period 40 years

CAPEX inflation Construction index

REPEX inlfation RPI index

ESCo costs Indexation

Variable gas import 2.361 p/kWh BEIS Industrial

Variable electricity import 14.740 p/kWh BEIS Industrial

Thermal purchase agreement 1 p/kWh RPI

Operating costs Indexation

Domestic HIU maintenance 45 £/unit/year RPI

Non-Domestic HIU maintenance 250 £/unit/year RPI

CHP maintenance 0.011 £/kWe RPI

Gas Boiler maintenance 0.03 % capex RPI

Heat Pump maintenance 0.08 % capex RPI

Energy Centre maintenance 0.005 % capex RPI

Network insurance 0.005 % capex RPI

Metering and Billing 75 £/unit RPI

Business Rates 0.022 % EC and DHN RPI

Staffing costs 45,000.00 input RPI

Customer charges Indexation

Domestic connection fee £3,500 £/unit RPI

Domestic variable heat tariff 6.90 p/kWh BEIS Residential

Domestic fixed tariff £350 £/unit RPI

Non-domestic connection fee £0 £/m2 RPI

Non-domestic variable heat tariff 3.00 p/kWh BEIS Services

Non-domestic fixed tariff 2.50 £/m2 RPI

Peak electricity tariff 5.5 p/kWh BEIS Industrial

Off-peak electricity tariff 5.5 p/kWh BEIS Industrial

Project costs

CHP 1 cost 850 £/kWe

CHP 2 cost 850 £/kWe

Gas boiler cost 30 £/kW

Heat Pump cost 600 £/kW

Spine network cost 2,500 £/m

Branch network cost 1,000 £/m

On-plot network cost 500 £/m

Apartment HIU 1,750 £/unit

Apartment R&L 1,500 £/unit

House HIU 1,750 £/unit

Non-domestic large HIU 6,500 £/unit

Non-domestic medium HIU 85,000 £/unit

Non-domestic small HIU 130,000 £/unit


19

3 DH Network Constraints Constraints identified during the desktop and field study were mapped using GIS software

to develop an accurate view of areas within the Study Area that would add significant

costs and time to the project.

It is important to look at the presented DH Network from a financial standpoint as well as

a technical one. As already mentioned, constraints can be considered as barriers to the

development of a DH Network and are used in this Investigation to highlight Heat Loads

where the cost of connecting the Heat Load to the Proposed Extension would add

significant cost to the project and make it unviable based on the best available information

at the time of the Investigation.

For example, a Heat Load can be deemed as ‘technically viable’ by pipework navigating

over or through rivers, but this certainly does not mean it is ‘financially viable’.

The Applicant is well aware of the technical capabilities and engineering solutions

available to projects of this scale and are also aware of the funding available to LA’s

(prudential funding) to implement such projects. However, as stated above, it is important

to take into account whether or not the project remains commercially attractive despite

these solutions.

The following constraints have been identified within the Study Area :

• M20 Motorway

• M2 Motorway

• River Medway

• Otford to Ashford (SECR) Railway Line

• Rochester to Paddock Wood (SECR) Railway Line

• Ebbsfleet to Dollands Moor (High Speed 1) Railway Line

Figure 3-1 illustrates these constraints, with the yellow area described for the purpose of

this Investigation as the Unconstrained Area.

Two underpasses beneath the Otford to Ashford railway line and M20 highway (shown as

red lines in Figure 3-1) essentially ‘unlocks’ the West section of the Study Area giving a

large Unconstrained Area to assess for viable Heat Loads.


20

Figure 3-1 Commercial Modelling Assumptions


21

4 Screening Process

Introduction

Prospective Heat Loads were identified during the Desktop and Field Studies referred to

above. As referred to in section 2.2 above the initial Desktop Study utilises tools such as

Google Maps and GIS software to identify Anchor Loads in the local area noting their

building type, location, and number of storeys.

The subsequent Field Study further assessed the topography of the local area as well as

reviewing the constraints identified in the initial Desktop Study.

The next step requires the assessment of Heat Loads using a combination of professional

judgment and datasets made available by leading bodies in the energy industry such as

the Chartered Institution of Building Services Engineers (the CIBSE) and the Department

for Business, Energy and Industrial Strategy (BEIS).

It should be noted that all Heat Loads calculated are produced entirely without access to

the meter readings of buildings/developments and so Heat Loads are determined as

detailed above.

This investigation excludes any assessment of the viability of retrofitting existing domestic

properties within the Study Area. This approach is in keeping with other applications for

Development Consent (e.g. Riverside Energy Park and Ferrybridge Multifuel 2) and is

accepted by the Planning Inspectorate and a number of planning authorities.

Retrofitting domestic properties comes with added complexity when compared to new

developments. Most importantly, this relates to the internal heating system contained

within the domestic property and whether or not it would have to be modified to suit the

needs of heat supplied by a DH Network, therefore adding further cost to the project.

First and foremost, a DH Network of this scale is designed to supply large Heat Loads (In

the first instance). Once a financial and technical case has been proven for the DH

Network it is then feasible to look into domestic properties nearby that could potentially

take heat, dependent on their existing energy provisions.

Therefore, the Applicant will begin looking into domestic Heat Loads as and when a viable

DH Network case is produced.

Existing Heat Loads

Within the Study Area, there are 197 existing Anchor Loads with a variety of building uses

from all sectors.


22

The distribution of Anchor Loads within the Study Area have been mapped using a GIS

software as per Figure 4-1. Each red dot represents one anchor load, with a larger circle

representing a larger load. An anchor load is described as a significant heat demand that

has a high potential to be one of the first connected demands on a network; Anchor

Loads are critical to making a network economically viable. Ideally an Anchor Load would

be located some distance away from the Heat source but not so far that connecting the

Anchor Load to the Heat Source would be uneconomical. In this scenario the significant

length of DH Network ‘the spine’, could potentially allow other developments along its

route to be classed as viable where previously they had been classed as unviable.

The distribution shows a large number of Anchor Loads in and around Maidstone town

centre as well as to the North in the Chatham/Gillingham area.

Densely populated areas such as town centres present a good opportunity for a DH

Network however they do come with a number of potential challenge’s such as:

• Costs incurred to deal with traffic management. Major traffic routes are more

likely to incur limits on lengths of open trench at any one time, increasing the

traffic management requirements and reducing productivity of installation,

• Disruption to local residents that would usually use the highly congested

roads,

• Very often, major traffic routes contain multi-utility services, often limiting the

location of major DH Network infrastructure. This often leads to greater

buried depths for DH Networks increasing installation time and cost for

reinstatement,

• Costs incurred for prelims – specifically surrounding productivity restrictions

and back-filling and re-tarmacking road surfaces, and

• Increased Health and Safety precautions and alignment with other planned

works.

Again, the above-mentioned challenges may not necessarily be barriers to prevent DH

Network installations but add complexity and cost when considering the DH Network.

Increased costs in installing DH Network infrastructure is a careful balance on the

commercial viability of such investments, which must be balanced in providing the end

consumer with a competitive price for heat when compared to a similar counterfactual

supply.


23

Figure 4-1 Existing Anchor Loads Within 10km


24

The existing Anchor Loads in Figure 4-1 are split below by building type for ease of data

evaluation. All loads below are derived from Appendix 1.

Building Use Estimated Heat Consumption per Annum (kWhth)

Commercial/Offices 17,216,928

Care Homes 6,082,128

Community Centres 660,474

Emergency Services 1,568,689

Gym/Leisure Centres 4,977,245

Healthcare 2,171,952

Hotels 13,614,836

Hospital 17,004,220

Industrial 29,511,567

Libraries 113,184

Mixed-Use3 2,666,325

Prisons 17,801,366

Retail 336,555

Schools 63,138,790

Shopping Centres 3,415,932

Supermarkets 5,947,704

Total 186,227,896

Table 4-2 below categorises all buildings used in Table 4-1 above dependent on whether

they are under the control of the Local Authority (LA) or Privately Owned.

Controlling Entity Estimated Heat Consumption (kWhth)

Privately Owned 70,504,142

LA Owned 115,723,753

Total 186,227,895

3Mixed-Use includes development(s) containing both residential dwellings and at least one other building type.

Table 4-1 Existing Anchor Load Heat Consumption (1)

Table 4-2 Existing Anchor Load Heat Consumption (2)


25

The initial Desktop Study found that circa 186 GWhth (186 GWhth) is equivalent to

187,000,000 kWhth) of heat is potentially available from existing buildings/developments

within the Study Area.

Of the 197 Anchor Loads identified in this Investigation, the top 15 (in terms of kWhth

consumption) equate to nearly half of the total estimated consumption.

As district heating schemes of this nature require large Anchor Loads at some point on

the DH Network route, the top 15 heat loads were evaluated individually to help determine

which direction the pipe route’s will likely take based on:

1. Total Heat Load (Annual kWhth Consumption),

2. Distance from the Proposed Extension,

3. Whether or not they or situated within the Unconstrained Area.

Table 4-3 highlights the 15 largest potential heat loads within the Study Area, with Figure

4-2 showing the distribution of said loads.

Figure 4-2 can then be superimposed onto the identified constraints GIS image to help

rule out any Heat Loads that are least viable (See Figure 4-3 below).


26

Development Ref. No. Building/Development Name Estimated Heat Consumption per Annum

(kWhth)

Within Unconstrained

Area?

1 Maidstone Hospital 17,004,220 Yes

2 HMP Rochester 11,725,808 No

3 Kings Hill Business Park 9,829,382 Yes

4 Larkfield Industrial Estate 6,364,089 Yes

5 HMP Maidstone 6,075,558 No

6 Gillingham Business Park 5,061,123 No

7 MidKent College 4,154,266 Yes

8 Quarry Wood Industrial Estate 3,950,046 Yes

9 Aylesford Industrial Estate 3,726,135 No

10 Invicta Grammar School for Girls 3,480,840 No

11 Maidstone Leisure Centre 3,148,675 No

12 Parkwood Industrial Estate 2,941,515 No

13 Rochester Airport Industrial Estate 2,696,625 No

14 Royal British Legion (RBLI) Village 2,666,325 Yes

15 Tudor Park Marriott Hotel & Country Club 2,517,610 No

Total 85,342,217

Table 4-3 15 Largest Existing Loads Within 10km Radius


27

Figure 4-2 15 Largest Existing Loads Within 10km


28

Figure 4-3 15 Largest Existing Loads Within 10km Including Constraints


29

From Figures 4-2 and 4-3, it is evident that developments 2, 6 and 13 are classed as

‘outliers’ due to their distance from the Proposed Extension . The distance from the

Proposed Extension is between 8 and 10km in a straight line. Ultimately, the amount of

pipework needed would exceed be greater as the DH Network would have to follow public

highways.

The Applicant has used a figure of £2,500 per metre of pipework needed for the DH

Network. This includes:

1. The cost of pipework,

2. All backfill and re-instatement costs,

3. Traffic management costs, and

4. Prelims/civils costs.

Therefore, 10km of pipework would cost in the region of £25 million for the three Heat

Loads. Whilst this figure does seem high, it has been taken from live projects the

Applicant’s consulting team are currently working on.

This high initial capital cost along with little room for expansion along the DH Network

route means that these three loads of have been omitted from the Investigation at this

stage.

Development 3 is also classed as an ‘outlier’ due to its proximity from the Existing Station

and any other Heat Loads identified close by. For this reason, Development 3 has also

been discounted from the Investigation at this stage.

The Applicant also discounted developments 5, 9, 10, 11, 12 and 15 from further

Investigation at this stage due to their location East of the River Medway (as well as, in

some parts, railway lines that would have to be crossed).

It should be noted at this point that KCC are currently working on a DH Network using

Water Source Heat Pumps (WSHP) – another form of renewable energy technology –

North-East of the River Medway.

The Applicant has discussed this in detail with KCC and their technical consultants,

AECOM. Although they are being discounted from this Investigation, there is potential to

conjoin the two DH Networks in the future. For the time being, however, each project

must work within its own right before they can be conjoined.

Development 9 lies North of the River Medway and is not situated close enough to any

nearby loads to justify a ‘branch’ being added to the ‘spine’ of the DH Network.

Finally, Development 4 has also been discounted from the Investigation at this stage as,

although it is within the Unconstrained Area, the length of pipework needed to reach the

development from the ‘spine’ of the D H Network incurs too high a capital cost than can

be recouped over the life of the project..

To summarise, looking at Figure 4-3:


30

• Developments 2, 3, 5, 6, 9, 10, 11, 12, 13 and 15 all lie outside of the

Unconstrained Area and so do not present a commercially attractive case at this

point in time based on comments previously stated, and

• Development 4 lies within the Unconstrained Area but would require a large amount

of ‘branch’ pipework to connect it to the DH Network.

The remaining Existing Heat Loads – Developments 1, 7, 8 and 14 – in Figure 3-3 (and

thus Table 3-3) are expanded upon in Section 4 - Concluded Heat Loads.

New Buildings/Developments

Whilst retrofitting existing properties/buildings can present a strong case to a LA for the

development of a DH Network, and has been proven in cities such as Nottingham,

Birmingham, Leeds, and Sheffield, district heating it remains more attractive to new

developments.

Most notably, it allows developers to reduce building fabric costs in order to reach Part L

requirements4 and can be implemented at the design stage of each development or

building as well as having a host of other benefits.

At the time of this Investigation there are 120 developments that have submitted planning

applications (Appendices 2 & 3) to the three LA’s operating within the Study Area;

Maidstone Borough Council, Tonbridge and Malling Council and Tunbridge Wells Council,

all three of which fall in the Kent County Council area.

There are a further 2 ‘Reg 3’ applications made from Kent County Council Education

Authority to Kent County Council submitted post 1st January 2019 (Also included in

Appendix 3).

As mentioned in Section 2.2.18, Planned Heat Loads include those that are within the

Unconstrained Area only, differing from Existing Heat Loads which have been assessed

for the whole Study Area.

Of the 122 developments with submitted planning applications, 14 developments are

within the Unconstrained Area.

Figure 3-5 shows the distribution of these 14 potential connections along with Table 3-4,

with a table in Appendix 4 providing further information regarding each development.

This Investigation also includes a map of Local Plan Land Allocations within the Study

Area (Figure 4-5) that identifies land for different types of developments (housing,

industrial, commercial etc.). Whilst there may not be any planning applications for these

parcels of land, the fact that they are identified by the Council for specified use is

something that FCC will continue to monitor.

4 Part L requirements relate to the energy performance of buildings with regards to limiting heat losses and ensuring

that energy-efficient fixed building services are installed. Low carbon heat sources such as energy from waste


31

New

Build

Ref No.

Planning Ref. Code Development Type Distance from Site

Boundary (km)

Estimated kWhth

Consumption

Consented Developments

1 13/2079 Residential 2.2 288,000

2 17/03350/FL Residential 0.98 227,700

3 17/505908/FULL Industrial 2.3 44,280

4 15/510179/OUT Residential 2.9 255,870

5 18/01609/RM Residential 5.8 782,393

6 18/02137/FL Care Home 9.5 1,347,840

Applications Under Determination

7 17/01595/OAEA Residential 0.08 3,024,000

8 19/00376/OAEA Residential 0.14 330,000

9 18/02966/OA Residential 2 1,080,000

10 18/03048/OA Garden Centre 1.6 194,400

11 19/503871/FULL Residential 2.5 360,000

12 18/03008/OA Residential 3.1 297,000

13 18/01013/OA Residential 6 432,000

14 19/01067/FL Residential 6.4 48,245

Table 4-4 Unconstrained, Planned Developments Within 10km

https://pa.midkent.gov.uk/online-applications/applicationDetails.do?keyVal=PQ0BWTTYITO00&activeTab=summary


32

Figure 4-4 Planned Heat Loads Within Unconstrained Area


33

Figure 4-5 Local Plan Land Allocations


34

5 Concluded Heat Loads

Initial Conclusions

The next stage in the assessment of potential Heat Loads is to superimpose the remaining

4 Existing Heat Loads with the 14 Planned Heat Loads to conduct a more detailed

feasibility assessment. This has been completed and is illustrated in Figure 5-1 and Table

5-2.

Figure 5-1 illustrates that the Planned and Existing Heat Loads remaining within the

Unconstrained Area have a combined Heat Load of 37,224,587.00 kWhth (37.2 GWhth).

Figure 5-1 also shows that both Planned and Existing Developments in the Unconstrained

Area form a cluster to the South West of the Proposed Extension all of which lie within a

5km radius of the Proposed Extension.

There are four Developments (5, 6, 13 and 14) lying outside of the cluster, in between

5.8 and 6.4 km from the Proposed Extension (encased in a red polygon). As detailed in

Table 5-1 below these four new developments would provide a total potential heat load of

2,610,478 kWhth.

The 4 new developments are located some distance from the Proposed Extension and

there are very few existing buildings/developments on route to these potential Heat

Loads.

Further to this, the four planned developments combined represent a relatively low Heat

Load at c. 2.6 million kWhth per annum. It is therefore considered that at this time it would

not be financially viable to extend the DH Network from the South West cluster to connect

these 4 developments. On this basis, all 4 developments will not be considered further in

this Investigation.

Development 2, North-West of the Proposed Extension (encased in a blue polygon) would

require the DH Network to pass above or below the M20 motorway, which could be

achieved by using the underpass referred to above (see Red lines on Figure 2-1).

This Development is almost trapped between the M20 and the railway line giving the DH

Network very little option but to terminate there. A ‘branch’ connection from the nearest

viable load is considered to incur significant capital costs that are too high to recoup,

even over the long-term, due to the relative low Heat Load at the development.

Ref. No. Planning Ref.

Code

Distance from Site

Boundary (km) Estimated kWhth Consumption

5 18/01609/RM 5.8 782,393

6 18/02137/FL 9.5 1,347,840

13 18/01013/OA 6 432,000

14 19/01067/FL 6.4 48,245

2,610,478

Table 5-1 Heat Loads Lying Outside of Cluster


35

Figure 5-1 Initial Conclusions


36

Ref. No. Description Estimated kWhth Consumption

Planned Developments

1 13/2079 288,000

2 17/03350/FL 227,700

3 17/505908/FULL 44,280

4 15/510179/OUT 255,870

5 18/01609/RM 782,393

6 18/02137/FL 1,347,840

7 17/01595/OAEA 3,024,000

8 19/00376/OAEA 330,000

9 18/02966/OA 1,080,000

10 18/03048/OA 194,400

11 19/503871/FULL 360,000

12 18/03008/OA 297,000

13 18/01013/OA 432,000

14 19/01067/FL 48,245

Existing Developments

1 Maidstone Hospital 17,004,220

7 Mid Kent College 4,154,266

8 Quarry Wood Industrial Estate 3,950,046

14 Royal British Legion Industries (RBLI) Village 2,666,325

36,486,585

Table 5-2 Initial Conclusions

https://pa.midkent.gov.uk/online-applications/applicationDetails.do?keyVal=PQ0BWTTYITO00&activeTab=summary


37

Development 4 has also been removed from the Investigation at this stage on similar

commercial viability grounds. This development also has a low predicted consumption of

c. 250,000 kWhth per annum which again at this stage means capital costs would be too

high to recoup in the long-term.

It is considered that the remaining buildings/developments would be connected to the

Proposed Extension via two main DH Networks pipes which are illustrated by black

arrows on Figure 5-1. One main pipe route would extend from the Proposed Extension

to the West, and the other would extend to the South.

An assessment of each main line indicates that it would be possible to connect four

developments to the Western Route, and eight connections to the Southern route as

detailed in Tables 5-3 and 5-4 below

Development Estimated kWhth

Consumption


RBLI Village (Existing Development 14) 2,666,325

Quarry Wood Industrial Estate 3,950,046

Sub-Total 6,616,371


Development 9 (300 no. Residential Dwellings) 1,080,000

Development 12 (110 no. Residential Dwellings) 297,000

Sub-Total 1,377,000

Total 7,993,371

Table 5-3 Western Route Heat Loads


38

Table 5-4 Southern Route Heat Loads

With the inclusion of Maidstone Hospital and Mid Kent College, the Southern Route has

over 3 times the annual kWhth consumption of the Western Route with both having similar

network lengths (5,670m for Western Route and 5,290m for Southern Route).

Western Route

The Western Route identified, along with a low kWhth consumption in comparison to the

Southern Route, also has some obstacles to overcome in order to increase viability.

Firstly, the RBLI Village consists of dwellings which are understood to be heated by

traditional individual gas boilers and as referred to above the cost of connecting existing

dwelling/buildings to a DH Network are much higher than connecting a DH Network to

new developments.

Further to this, an extension to the RBLI Village consisting of new-build housing has

recently been completed, therefore these properties have new heating provisions that

would not need to be replaced.

Planning Ref. Code Estimated kWhth

Consumption


Maidstone Hospital (Existing Development 1) 17,004,220

Mid Kent College (Existing Development 7) 4,154,266

Sub-Total 21,158,486



Development 3 (3 no. B8 Use Buildings) 44,280

Development 7 (840 no. Residential Dwellings) 3,024,000


Development 10 (Garden Centre + 9 no. Dwellings) 194,400

Development 11 (160 no. Residential Units) 360,000

Sub-Total 4,240,680

Total 25,399,166


39

Secondly, Developments 9 and 12 are 2.8km and 3.6km from the DH Network and as

such it is considered that extending the DH Network to connect these developments for

a relatively low heat load of c. 1.35 million kWhth per annum is not considered viable.

These loads are not considered viable as the cost of laying district heating pipework to

them has an estimated cost of c. £9 million using the £2,500/metre of pipework in Section

4.2.15.

The Quarry Wood Business Park (the Park) represents a diversified heat load as it

contains 40 dwellings used for mostly industrial processes. However, although a

diversified heat load would be attractive in terms of consumption it is understood that the

Park is owned by a single landowner and such individual connection and supply

agreements would have to be negotiated and concluded with each business owner.

The Applicant has concluded that a spine network only would incur capital costs of c.

£10.2 million, and with the cost of HIU’s and branch networks to each property this would

rise to circa £15 million. If all tenants agreed to an industry standard standing charge of

£2.40/m2 and tariff charge of 3p/kWhth consumed, over 40 years the entity will see returns

of c. £19.4 million (exc. inflation).

This means at least 75% of the properties in the Park would need to connect to the DH

Network in order for it to be a financially viable development.

Considering the buildings situated within the business park are used for industrial

processes, and also containing car showrooms, there will be little appetite to join the

network as heating their buildings is not a priority.

In Ener-Vate’s experience, businesses such as these would be happy to join a DH

Network if their current energy provisions need to be replaced in the coming years,

however the chance of this being the case with all 40 buildings, as well as the business

owner wanting to use energy sourced from a DH Network, as well as securing connection

and supply agreements with each, is highly unlikely.

The risk associated with implementing the DH Network without confirmation from

numerous tenants makes it a more challenging development to deem viable.

A potential solution to the cost of connecting this is to potentially add the Park to the

Southern Route due to its close proximity to Developments 7 and 8. In May 2020

AssetSpace, the commercial agent for the Park was approached in order to obtain

contact details for the various businesses on the Park with a view to opening a dialogue

with them to discuss the DH Network opportunity.

For this Investigation, however, the Park has been added to the Southern Route.

Taking the above into account, the Western Route from FCC’s Proposed Extension will

not be included in this Investigation This does not, however, mean that the Western Route

is permanently excluded. With capital cost intervention such as the Heat Network

Infrastructure Program (HNIP)3 fund potentially available to the scheme, the Western

Route may become more attractive to consider as the project progresses.

The Applicant has therefore, at this stage focused on the Southern Route on the metrics

of commercial viability and balancing any risk that the Applicant or the ESCo entity will

inevitably incur.


40

Southern Route

The Southern Route extending from the Proposed Extension combines a higher kWhth

annual consumption with a shorter overall DH Network route than the Western route

making for a stronger business case. See figure 5-2 for all Southern Route Heat Loads

remaining.

From the eight identified developments (See Table 5-4 and Figure 5-1), the most

important Anchor Loads on the route are the Maidstone Hospital and MidKent College

the former being the more significant development in terms of both Heat Load and

distance from the Proposed Extension.

Securing one of these Anchor Loads is considered vital to the commercial viability of the

Southern Route. As a result, recent consultations have targeted Maidstone Hospital and

MidKent ahead of any consultation with other developments on the Southern Route.

However, should these developments react positively to the potential DH Network then

approaches would be made to the owners/occupiers of the other developments on the

route, the outlier Heat Loads.

This is because, as previously stated, Anchor Loads have to be secured first in order to

make a DH Network commercially viable, with smaller Outliers being a ‘bonus’ to the

project should they be connected in the future.

For this reason, Developments 1, 3, 10 and 11 have been omitted from the Investigation

at this stage, leaving Developments 7 and 8, along with Maidstone Hospital and MidKent

College on the Southern Route from the Proposed Extension.

Following initial consultation with Development 7 (no. 840 residential dwellings) – see

section 6 – it has been removed from this Investigation at this point. Gladman

developments have shown no interest in using heat provided by a DH Network, and such

has not been included in the commercial model.

Development 7 would have been a significant Heat Load for the DH Network, and

therefore could have been a large source of revenue. In attempt to counteract this, two

primary schools situated on route, and requiring little ‘branch’ pipework have been added

to the Southern Route.

However, the Applicant still plans to engage with Gladman Developments as their

planning application progresses. The DH Network may be more attractive once they

begin designing energy provisions for the site and once the DCO application process is

more advanced.

3 HNIP is a £320 million government funding programme aiming to increase the number of heat networks built in England and Wales

consisting of both grant and loan funding.


41

Figure 5-2 Southern Route Heat Loads


42

Figure 5-3 Southern Route Indicative DH Network


43

Finally, Table 4-6 shows all Heat Loads on the Southern route that FCC and Ener-Vate will

contact should either Maidstone Hospital or MidKent College demonstrate interest to

connect to the DH Network.

Planning Ref. Code Estimated kWhth

Consumption


Maidstone Hospital 17,004,220

MidKent College 4,154,266

Palace Wood Primary School 116,000

Allington Primary School 271,000

21,876,486

Building/Development Name Building/Development Type Estimated kWhth

Consumption

Quarry Wood Business Park Industrial/Retail 3,950,046

Premier Inn Maidstone Sandling Hotel 861,062

Waitrose Supermarket 376,128

Kent Community Health NHS

Foundation Trust Healthcare 227,232

The College Practice Barming Education 45,576

Mont Calm Residential Home Care Home 116,640

Development 1 (80 no.

Residential Dwellings) Residential 288,000

Development 3 (3 no. B8 Use

Buildings) Commercial 44,280

Development 10 (Garden

Centre + 9 no. Dwellings) Residential & Commercial 194,400

Development 11 (160 no.

Residential Units) Residential 360,000

6,363,364

Table 5-5 Southern Route Concluded Developments


44

Final Conclusions

Physical constraints identified in this Investigation present technical barriers that can

prohibit the implementation of a DH Network, not only from a design point of view, but

just as importantly a commercial stance too.

A proprietary screening process was used to gradually omit loads from the Study Area

on the basis of commercial viability.

The Applicant has concluded that the Southern Route Network has a greater commercial

viability should negotiations be successful with Maidstone Hospital and MidKent College

so at this stage is concentrating consultations with Anchor Loads on that route.

Successful negotiations will allow the Applicant to begin consultation with Outliers that lie

on the indicative route to add value to the DH Network and offer low-carbon heat to the

surrounding area.

The Southern Route includes five potential loads (See Figure 5-3 and Table 5-5) with a

total indicative DH Network length of 5,070m.

The Southern Route has been modelled using the proprietary commercial model owned

by Ener-Vate Consultancy Limited the outputs of which are shown in Figures 5-4 and 5-

5.

The ability to attract a commercial entity to operate an ESCo and retail heat to the

identified consumers relies heavily upon a strong project return – this is typically given as

an IRR value. Any commercial entity prepared to enter into either a joint venture, or to

wholly own this ESCo would typically expect to see an IRR value of at least 8%, and ideally

between 9% and 10%.

As shown in Figure 5-4, the current projected IRR sits just below 8%, at 7.85%, therefore

giving a negative Net Present Value (the value used to analyse the profitability of a

projected investment or project) and deeming the Southern Route in its current state as

commercially unviable.

The IRR value is not far off an achievable 8%, and such the Applicant will continue to

monitor the status of nearby planning applications whilst negotiations are ongoing, as well

as engaging with KCC and nearby Local Authorities, LEPs and businesses to discuss any

opportunities that may arise.


45

Key project assumptions Key project outputs

Model timeline and financial inputs Model switches and sensitivities Project summary

Model start date 01-Jan-22 Date Total CAPEX Total domestic 106 #

Concession period 40 years Lifecycle as accrual Total non-domestic 122,067 m2 NIA

CAPEX inflation Construction index R&L in model

REPEX inlfation RPI index HIU's in model Financial summary

Discount factor 8% % Inflation

Corporation tax 19% % Post tax IRR 7.88% CAPEX (Nominal) £16,816,680

Heat demand 0.00% +/- % NPV -£254,259 CAPEX (Real) £18,368,322Heat demand Corporation tax 0.00% +/- %

Capex 0.00% +/- % Revenues Costs

Domestic Comment Maintenance 0.00% +/- %

Replacement 0.00% +/- % Connection fee 405,402£ REPEX 4,294,006£

Apartment 42 kWh/m2 heating and hot water Utilities starting price 0.00% +/- % Variable tariff 61,617,984£ OPEX 57,896,707£

House 42 kWh/m2 heating and hot water Fixed tariff 91,632,253£ Commodities 23,274,745£

ESCo costs Electricity -£ Maintenance 7,483,637£

Non-Domestic Comment Grant -£ Other 1,532,502£

Utilities Total 153,655,638£ Total 62,190,713£

Educational 120 kWh/m2 heating and hot water

Hospital 200 kWh/m2 heating and hot water Variable gas import 2.361 p/kWh BEIS Industrial Commodities Other operating costs

College 101 kWh/m2 heating and hot water Variable electricity import 14.74 p/kWh BEIS Industrial

Retail 101 kWh/m2 heating and hot water Gas import 5,479,705£ Domestic HIU 347,507£

Hotel 186 kWh/m2 heating and hot water Other utilities Electricity import 4,546,547£ Non-Domestic HIU 273,198£

TPA 13,248,493£ CHP -£

Customer charges Thermal purchase agreement 1 p/kWh RPI Total 23,274,745£ Gas Boiler 1,049,079£

Heat Pump -£

Domestic Indexation Bad debt Comment Energy Centre 1,342,302£

Full-build demand (MWh) Network 4,471,551£

Connection fee £3,500 £/unit RPI Domestic bad debt rate 1% % Metering and Billing 579,179£

Variable heat tariff 6.9 p/kWh BEIS Residential Non-domestic bad debt rate 1% % Domestic 342 Business Rates 21,735,979£

Fixed tariff £350.00 £/unit RPI Non-domestic 19,864 Staffing 3,290,664£

Operating costs Indexation Losses - Domestic bad debt 45,100£

Non-Domestic Indexation Total 20,206 Non-domestic bad debt 1,487,402£

Domestic HIU 45 £/unit/year RPI Total 34,621,961£

Connection fee £0 £/m2 RPI Non-Domestic HIU 250 £/unit/year RPI

Variable heat tariff 3 p/kWh BEIS Services CHP £0.011 £/kWe RPI Tariff analysisFixed tariff £2.50 £/m2 RPI Gas Boiler 3% % capex RPI

Heat Pump 8% % capex RPI Domestic 100%

Electric Indexation Energy Centre 0.5% % capex RPI Variable tariff 40.1%

Network 0.50% % capex RPI Fixed tariff 59.9%

Peak sales 5.5 p/kWh BEIS Industrial

Off-peak sales 5.5 p/kWh BEIS Industrial Other Indexation Non-Domestic 100%

Variable tariff 40.2%

Metering and Billing 75 £/unit RPI Fixed tariff 59.8%

Business Rates 2.20% % EC and DHN RPI

Staffing Project input RPI Total 100%

Variable tariff 40.2%

Fixed tariff 59.8%

Real

Yes

No

Yes

Yes

40.2%

59.8%

Variable tariff

Fixed tariff

Figure 5-4 Commercial Model Outputs (1)


46

Figure 5-4 Commercial Model Outputs (2)

Energy centre

Project graph

0

5000

10000

15000

20000

25000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

MW

h

CHP TPA Heat Pump Gas Boiler Energy centre load

£(30,000,000)

£(20,000,000)

£(10,000,000)

£-

£10,000,000

£20,000,000

£30,000,000

£40,000,000

£50,000,000

£60,000,000

£70,000,000

£(12,000,000)

£(10,000,000)

£(8,000,000)

£(6,000,000)

£(4,000,000)

£(2,000,000)

£-

£2,000,000

£4,000,000

£6,000,000

£8,000,000

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40

Project revenues and costs over concession period

Connection fee Variable heat tariff Fixed tariff Electricity RHI

Grant Gas import Electricity import Thermal Purchase Agreement Domestic HIU

Non-Domestic HIU CHP Gas Boiler Heat Pump Energy Centre

Network Metering and Billing Business Rates Staffing Domestic bad debt

Non-domestic bad debt Capex REPEX Cumulative cashflow post tax pre funding


47

6 Consultation to Date Ener-Vate have contacted the potential heat consumers listed in Table 4-4 as per EN-1

Overarching National Policy Statement for Energy.

As previously mentioned, Ener-Vate along with FCC contacted different entities using a

variety of resources, namely presentations, meetings and informative documents.

Development 8 – 106 no. Residential Development

Development 8 is the ‘concluded development’ lying closest to the Proposed Extension,

and is being developed by Clarendon homes.

The Planning Application for Development No.8 was submitted in February 2019 and is

still at a stage when heating provisions from the DH Network can be implemented – only

two consultee responses have been submitted post January 1st 2020.

To discuss the opportunity of the development connecting to the DH Network, a

personalised briefing note (Appendix 5) was sent to a generic email address at Clarendon

Homes as well as the Land and Planning Officer.

Clarendon homes were interested in the low-carbon energy source that the Proposed

Extension could supply, with the company representative replying via phone call.

Following discussions the company representative was planning to present the proposals

to the Board of Directors at their next meeting. However, due to the current Covid-19

circumstances this has been put on hold by Clarendon Homes for the time being. Ener-

Vate intend to follow this up once business continues.

Development 7 – 840 no. Residential Development

The Development 7 site has planning permission for an 840 no. residential development

under ownership of Gladman developments. Therefore, Gladman Developments were

also contacted at the same time as the Clarendon Homes development due to its large

potential heat load and close proximity to the Proposed Extension. Again, a personalised

briefing note was prepared and issued to a company representative.

However, Gladman Developments replied stating that the development site will be sold to

a housebuilder in the future, and so the DH network will be a proposal to be considered

by the new owners once the sale has concluded. Gladman homes did not provide any

timescales for the completion of the site purchase. (See Appendix 8).

As the development continues through its planning stages, Ener-Vate will maintain

contact with Gladman developments continuously to gain updates on their planning

application and any further activity.

MidKent College

For these three potential heat loads, Ener-Vate along with FCC engaged with KCC on two

occasions, firstly on 16th September 2019 and again on 2nd April 2020 to discuss any

opportunities available.


48

The first part of the meeting was an informal introduction (September 2019) set out to

discuss FCC’s plans for the proposed heat network and how it could benefit KCC and the

local area.

The second part of the meeting was a presentation from KCC and their Design

Consultants, AECOM, about a Water Source Heat Pump fed heat network on the

opposite side of the River Medway.

KCC’s proposed network looked at providing heating provisions for large anchor loads

such as Invicta House and, KCC owned buildings and HMP Maidstone.

For this Investigation, the above buildings were excluded due to the constraints referred

to above. However, the meeting opened a new avenue that FCC and Ener-Vate could

pursue – a potential ‘conjoining’ of the two DH Networks.

KCC’s proposed DH Network produced an IRR of circa 2%. Therefore, the conjoining of

the two DH Networks could not only see an increase in low-carbon heat, but also potential

for KCC to increase the financial return on their investment.

The meeting concluded with each party agreeing to continue their respective

investigation with the aim to reconvene in the future to discuss progress.

The second meeting (April 2020) did exactly this. The Energy Manager and a Renewable

Energy Consultant joined the call from KCC with the meeting discussing progress for both

parties.

Firstly, it was important for FCC and Ener-Vate to gain contacts for their current

Investigation and proposed indicative routes in order to begin / continue consultation with

prospective customers – specifically for Developments 2, 3, 4 and 5 – as well as any other

information KCC may deem necessary for Ener-Vate’s Investigation.

Secondly, FCC wanted to kick-start the conversation surrounding the conjoining of the

two DH Networks, knowing that it is something KCC are certainly interested in doing.

KCC’s Renewable Energy Consultant specifically mentioned the Heat Networks

Infrastructure Project (HNIP) funding that may be available to them to help fund the

investigation of conjoining both DH Networks. It was however recognised that there are

significant constraints that need to be overcome to join the DH Networks that need further

exploration and economic appraisal.

The conjoining Investigation is being monitored, however as resources have been limited

recently the Investigation has slowed down somewhat. FCC and Ener-Vate will continue

to explore options for the conjoining of the DH Networks and maintain dialogue with KCC

and their advisors to appraise all opportunities.

Following this meeting, contacts were received for NHS Maidstone / The NHS Trust (See

NHS Maidstone).

Minutes for both of these meetings are available in the Appendices 6 & 7.

NHS Maidstone

FCC and Ener-Vate received two contacts for the NHS Trust from KCC:


49

Director of Estates and Facilities, and

Previous Energy Manager that may still do some work with the NHS trust.

Ener-Vate had previously contacted the Director of Estates and Facilities on the 2nd

December 2019 to discuss the opportunity of implementing the DH Network to the

hospital. The trust advised that they are interested in the DH Network proposals.

Following this response Ener-Vate set out to determine the commercial structure of the

Trust and whether or not the hospital was locked into any Private Finance Initiative (PFI)

agreement and if so, who the operator is. To date this information is outstanding.

Ener-Vate again attempted to contact the NHS Director of Estates and Facilities, as well

as the Previous Energy Manager, following the meeting with KCC.

Unfortunately, again due to the current pandemic situation, no response has been

received from the NHS Trust. FCC and Ener-Vate will continue to pursue this opportunity

as it is certainly the largest unconstrained anchor load within the Study Area.

A copy of the briefing note templates have also been included in Appendix 5, with the

example used as Clarendon Homes.

Copies of all email exchanges are also available in Appendix 8.


50

7 Heat Network Design & Further

Opportunities

Ancillary Backup System(s)

The Proposed Extension will be designed to achieve an availability of over 90% (i.e. at

least c. 8,000 operational hours per year). During periods of routine maintenance or

unplanned outages the Proposed Extension will not be operating, however the heat

consumers will still require heat. There is therefore a need, somewhere within the heat

distribution system, to provide a back-up source of heat to meet the needs of the heat

consumers. It is anticipated that the back-up boilers will be in operation for c. 760 hours

per year. As the Generating Station includes a shared Combined Heat Distribution

building the Existing Station may be able to act as a backup heat source when the

Proposed Extension is being maintained as it is highly unlikely that both the Proposed

Extension and Existing Station would not be operating at the same time. However, the

backup system would be a matter for discussions with heat customers and at this stage

it is considered prudent to account for a separate back up heat source independent of

the Generating Station

The backup heat source will likely comprise oil or gas-fired hot water heaters (boilers)

with a separate dedicated stack. Back-up boilers are typically designed to ensure that

the peak heat export capacity can be met but also provide sufficient turndown to supply

smaller summer loads with reasonable efficiency.

The location of the back-up heat source would be decided through negotiations with

customers but would ideally be located in close proximity to the heat consumers to

minimise heat losses when running on fossil fuel.

Subject to detailed heat demand modelling, once heat consumers are known with more

certainty, opportunities for installing thermal stores will be considered to lessen reliance

on the back-up heat source by storing excess heat generated during off peak periods for

use during times of peak heat demand.

The cost of installing and operating the back-up heat source has been included in the

economic assessment.

Additional Heat Opportunities

FCC have been in contact a number of times times with KCC to discuss the potential

development of a separate DH Network to the North-East of the River Medway using

Water Source Heat Pumps (WSHPs). This is a project that KCC are currently working on,

with an expectation of supplying heat to any large heat loads currently classed as

physically constrained within their study area, such as HMP Maidstone and Invicta House.

The project is currently in its feasibility stage and KCCis engaging with the market in order

to better understand the appetite within the private sector for such a project.


51

It is hoped that FCC’s proposed DH Network would be able to link with KCC’s proposed

DH Network to the North East of the River to create one large conjoined DH Network.

FCC are currently exploring options for such a collaboration, specifically looking at

constraints to this can be overcome.

8 References [1] National Policy Statement for Energy (EN-1)

[2] National Policy Statement for Renewable Energy Infrastructure (EN-3)

[3] Climate Change Act 2008 Order 2019

[4] National Comprehensive Assessment of the Potential for Combined Heat and Power and

District Heating and Cooling in the UK

[5] The Association for Decentralised Energy Heat Market Report: Heat Networks in the UK

2018


52

Appendix 1 – Heat Load Data for

Existing Buildings

Grid Ref. Ener-Vate Ref. Building Name Building Type GIA Storeys Total GIA Total NIA kWh/m2 Value Estimated kWh Consumption p/a

A1 - N/A N/A - - - - - -

A10 - N/A N/A - - - - - -

A11 - N/A N/A - - - - - -

A2 - N/A N/A - - - - - -

A3 - N/A N/A - - - - - -

A4 - N/A N/A - - - - - -

A5 - N/A N/A - - - - - -

A6 - N/A N/A - - - - - -

A7 138 Trottiscliffe C of E Primary School School 622 1 622 560 120 67,176

A8 - N/A N/A - - - - - -

A9 - N/A N/A - - - - - -

B1 - N/A N/A - - - - - -

B10 - N/A N/A - - - - - -

B11 - N/A N/A - - - - - -

B2 - N/A N/A - - - - - -

B3 - N/A N/A - - - - - -

B4 30 Mereworth Primary School School 1,690 1 1,690 1,521 120 182,520

B5 - N/A N/A - - - - - -

B6 - N/A N/A - - - - - -

B7 - N/A N/A - - - - - -

B8 - N/A N/A - - - - - -

B9 - N/A N/A - - - - - -

C1 - N/A N/A - - - - - -

C10 - N/A N/A - - - - - -

C11 - N/A N/A - - - - - -

C2 - N/A N/A - - - - - -

C3 - N/A N/A - - - - - -

C4 - N/A N/A - - - - - -

C5 53 Kings Hill Business Park Business Park 75,844 2 113,766 102,389 96 9,829,382

C5 55 The Discovery School School 3,253 1 3,253 2,928 120 351,324

C5 54 Kings Hill School School 2,613 1 2,613 2,352 120 282,204

C6 106 Lavenders Residential Care Home Care Home 1,829 2 3,658 3,292 240 790,128

C6 107 More Park RC Primary School School 1,608 1 1,608 1,447 120 173,664

C6 105 Tesco Metro Supermarket 1,133 1 1,133 1,020 80 81,576

C6 104 West Malling C of E Primary School School 205 1 205 185 120 22,140

C7 139 Ryarsh Primary School School 1,159 1 1,159 1,043 120 125,172

C8 - N/A N/A - - - - - -

C9 - N/A N/A - - - - - -

D1 - N/A N/A - - - - - -

D10 182 Cuxton Community Junior School School 3,226 1 3,226 2,903 120 348,408

D11 - N/A N/A - - - - - -

D2 1 Yalding C of E Primary School School 758 2 1,516 1,364 120 163,728

D3 7 Kenward Trust Conference Centre Commercial 1,155 2 2,310 2,079 96 199,584

D3 6 Wateringbury C of E Primary School School 1,395 1 1,395 1,256 120 150,660

D4 - N/A N/A - - - - - -

D5 - N/A N/A - - - - - -

D6 115 Larkfield Priory Hotel 2,483 3 7,449 6,704 264 1,769,882

D6 119 The Malling School School 6,214 2 12,428 11,185 120 1,342,224

D6 117 Thornhills Medical Practice Healthcare 650 3 1,950 1,755 160 280,800

D6 110 Brookfield Junior School School 2,202 1 2,202 1,982 120 237,816

D6 113 Larkfield Fire Station Emergency Services 491 1.5 737 663 312 206,809

D6 108 St James The Great Academy School 1,820 1 1,820 1,638 120 196,560

D6 111 Brookfield Infant School School 1,568 1 1,568 1,411 120 169,344

D6 109 Little Quackers Nursery and Pre School School 1,367 1 1,367 1,230 120 147,636

D6 112 Lunsford Primary School School 1,365 1 1,365 1,229 120 147,420

D6 118 Morrisons Supermarket 1,700 1 1,700 1,530 80 122,400

D6 116 B&Q Aylesford Retail 2,812 1 2,812 2,531 30 75,924

D6 114 Larkfield Library Library 430 1 430 387 120 46,440

D7 143 Larkfield Industrial Estate Industrial 235,707 1 235,707 212,136 30 6,364,089

D7 140 Tesco Distribution Centre Supermarket 21,566 1 21,566 19,409 80 1,552,752

D7 142 Larkfield Leisure Centre Leisure Centre 6,051 1 6,051 5,446 264 1,437,718

D7 141 Tesco Extra Supermarket 6,051 1 6,051 5,446 80 435,672

D8 150 The Holmesdale School School 8,507 2 17,014 15,313 120 1,837,512

D8 152 Industrial Estate Industrial 40,150 1 40,150 36,135 30 1,084,050

D8 151 Southeast Water Commercial 2,470 3 7,410 6,669 96 640,224

D8 149 St Katherine's School & Nursery School 5,109 1 5,109 4,598 120 551,772

D8 147 Snodland C of E Primary School School 2,056 1 2,056 1,850 120 222,048

D8 148 Snodland Community Centre Community Centre 1,315 1.5 1,973 1,775 60 106,515

D9 158 Halling Primary School School 1,844 1 1,844 1,660 120 199,152

E1 - N/A N/A - - - - - -

E10 183 The Pilgrim School School 1,549 2 3,098 2,788 120 334,584

E2 2 Hunton C of E Primary School School 975 1 975 878 120 105,300

E3 - N/A N/A - - - - - -

E4 31 Barming Primary School School 1,896 1 1,896 1,706 120 204,768

E5 57 Kent Community Health NHS Foundation Trust Healthcare 789 2 1,578 1,420 160 227,232

E5 58 Superior Healthcare Maidstone Healthcare 735 2 1,470 1,323 160 211,680

E5 56 Secure Data Europe Commercial 465 1.5 698 628 96 60,264

E6 125 Quarry Wood Industrial Estate Industrial 146,298 1 146,298 131,668 30 3,950,046

E6 124 RBLI Village Mixed 50,817 Mixed Mixed Mixed Mixed 2,666,325

E6 122 Aylesford School School 6,326 2 12,652 11,387 120 1,366,416

E6 120 Ditton C of E Junior School School 1,622 1.5 2,433 2,190 120 262,764

E6 123 Aylesford Primary School School 1,564 1 1,564 1,408 120 168,912

E6 121 Ditton Infant School School 1,049 1 1,049 944 120 113,292

E7 144 St Marks C of E Primary School School 857 1 857 771 120 92,556

E8 153 Burham C of E Primary School School 1,429 1 1,429 1,286 120 154,332

E9 - N/A N/A - - - - - -

F1 - N/A N/A - - - - - -


53

F10 184 HMP Rochester Prison 31,623 2 63,246 56,921 206 11,725,808

F10 191 Sir Joseph Williamson's Mathematical School School 9,469 2 18,938 17,044 120 2,045,304

F10 189 The Thomas Aveling School School 9,006 2 18,012 16,211 120 1,945,296

F10 186 The Rochester Grammar School School 6,827 2 13,654 12,289 120 1,474,632

F10 187 Delce Academy & Crest Infant School School 4,805 1.5 7,208 6,487 120 778,410

F10 188 Barchester - Friston House Care Home Care Home 2,234 1.5 3,351 3,016 240 723,816

F10 190 Warren Wood Primary Academy School 3,225 1.5 4,838 4,354 120 522,450

F10 185 St William of Perth RC Primary School School 593 1 593 534 120 64,044

F11 204 Rochester Health Centre Healthcare 1,455 2 2,910 2,619 160 419,040

F2 - N/A N/A - - - - - -

F3 14 South East Coast Ambulance Service Emergency Services 1,479 2 2,958 2,662 312 830,606

F3 13 The Coxheath Centre Healthcare 2,414 1 2,414 2,173 160 347,616

F3 10 Coxheath Primary School School 1,304 1 1,304 1,174 120 140,832

F3 8 East Farleigh Primary School School 1,230 1 1,230 1,107 120 132,840

F3 15 Harlequin Out of School Club School 1,049 1 1,049 944 120 113,292

F3 9 Coxheath Village Hall Community Centre 685 1 685 617 60 36,990

F3 12 Londis Supermarket 437 1 437 393 80 31,464

F3 11 Coxheath Library Library 267 1 267 240 120 28,836

F4 32 Bower Grove School School 4,374 1 4,374 3,937 120 472,392

F4 33 Jubilee Primary School School 1,087 2 2,174 1,957 120 234,792

F5 59 Maidstone Hospital Hospital Mixed Mixed Mixed Mixed Mixed 17,004,220

F5 63 MidKent College School Mixed Mixed Mixed Mixed Mixed 4,891,500

F5 66 Lukestone Nursing Home Care Home 787 3 2,361 2,125 240 509,976

F5 65 Grange Moor Hotel Hotel 952 2 1,904 1,714 264 452,390

F5 64 The Poplars Nursing Home Care Home 1,691 1 1,691 1,522 240 365,256

F5 68 Lulworth Residential Care Home Care Home 532 2 1,064 958 240 229,824

F5 60 Dempson Industrial 6,325 1 6,325 5,693 30 170,775

F5 67 Mont Calm Residential Home Care Home 270 2 540 486 240 116,640

F5 69 Palace Wood Primary School School 1,070 1 1,070 963 120 115,560

F5 62 The College Practice Barming School 211 2 422 380 120 45,576

F5 61 Beechwood Community Hall Community Centre 392 2 784 706 60 42,336

F6 129 20/20 Industrial Estate Industrial 56,012 1 56,012 50,411 30 1,512,324

F6 130 Premier Inn Maidstone Sandling Hotel 1,812 2 3,624 3,262 264 861,062

F6 128 Waitrose Supermarket 5,224 1 5,224 4,702 80 376,128

F6 126 Allington Primary School School 2,511 1 2,511 2,260 120 271,188

F6 127 Allington Library Library 351 1 351 316 120 37,908

F7 145 Aylesford Industrial Estate Industrial 138,005 1 138,005 124,205 30 3,726,135

F7 146 St Peters C of E Primary School School 570 1 570 513 120 61,560

F8 154 Kingsway International Christian Centre Commercial 6,090 2 12,180 10,962 96 1,052,352

F9 161 Rochester Airport Industrial Estate Industrial 99,875 1 99,875 89,888 30 2,696,625

F9 159 Holiday Inn Rochester - Chatham Hotel 5,207 2 10,414 9,373 264 2,474,366

F9 160 Asda Chatham Superstore Supermarket 6,012 1 6,012 5,411 80 432,864

G1 - N/A N/A - - - - - -

G10 198 Holcombe Grammar School & New Horizons Children's AcademySchool 10,740 2 21,480 19,332 120 2,319,840

G10 196 The Victory Academy School 8,228 2 16,456 14,810 120 1,777,248

G10 193 St John Fisher Catholic School School 2,262 2 4,524 4,072 120 488,592

G10 199 Wayfield Primary School School 2,416 1.5 3,624 3,262 120 391,392

G10 192 Balfour Junior Academy School 3,113 1 3,113 2,802 120 336,204

G10 194 Greenvale Infant & Nursery School School 2,331 1 2,331 2,098 120 251,748

G10 197 Pheonix Junior Academy School 952 2 1,904 1,714 120 205,632

G10 200 Kingfisher Primary School School 1,715 1 1,715 1,544 120 185,220

G10 195 White Road Community Centre Community Centre 270 1 270 243 60 14,580

G11 210 Fort Pitt Grammar School School 7,570 2 15,140 13,626 120 1,635,120

G11 211 University for the Creative Arts School 4,505 3 13,515 12,164 120 1,459,620

G11 205 St John Fisher Catholic Comprehensive School School 2,461 3.5 8,614 7,752 120 930,258

G11 207 St Michael's RC Primary School School 2,424 1 2,424 2,182 120 261,792

G11 206 All Saints C of E Primary School School 1,001 2 2,002 1,802 120 216,216

G11 209 New Road Primary School School 1,842 1 1,842 1,658 120 198,936

G2 3 Cornwallis Academy School 7,440 3 22,320 20,088 120 2,410,560

G2 4 OneSchool Global Maidstone Campus School 4,155 1 4,155 3,740 120 448,740

G2 5 Boughton Monchelsea Primary School School 1,145 1 1,145 1,031 120 123,660

G3 16 Tiger Primary School & New Line Learning AcademySchool 6,648 2 13,296 11,966 120 1,435,968

G3 17 Loose Primary School & Junior School School 3,186 1.5 4,779 4,301 120 516,132

G4 44 Five Acre Wood School School 9,284 2 18,568 16,711 120 2,005,344

G4 40 Maidstone Grammar School School 6,633 2 13,266 11,939 120 1,432,728

G4 41 Maidstone Fire Station Emergency Services 946 2 1,892 1,703 312 531,274

G4 37 Archbishop Courtenay Primary School School 1,962 1.5 2,943 2,649 120 317,844

G4 43 YMCA Maidstone Community Centre 2,693 2 5,386 4,847 60 290,844

G4 36 Lidl Supermarket 2,783 1 2,783 2,505 80 200,376

G4 39 Park Way Primary School School 1,634 1 1,634 1,471 120 176,472

G4 38 Bob Prowse Health Club Gym 737 1 737 663 264 175,111

G4 34 Tesco Superstore Supermarket 2,374 1 2,374 2,137 80 170,928

G4 35 HPS Maidstone Industrial 2,301 1 2,301 2,071 30 62,127

G4 42 Sainsbury's Local Supermarket 569 1 569 512 80 40,968

G5 90 HMP Maidstone Prison 16,385 2 32,770 29,493 206 6,075,558

G5 71 Maidstone Grammar School for Girls School 8,064 2.5 20,160 18,144 120 2,177,280

G5 87 The Mall Maidstone Shopping Centre 16,258 3 48,774 43,897 40 1,755,864

G5 70 The Maplesden Noakes School School 7,834 2 15,668 14,101 120 1,692,144

G5 94 Maidstone Care Centre Care Home 1,543 3 4,629 4,166 240 999,864

G5 88 Valley Invicta Primary School at East Borough School 3,431 1.5 5,147 4,632 120 555,822

G5 73 Brunswick House Primary School School 1,858 2 3,716 3,344 120 401,328


G5 79 Premier Inn Maidstone Town Centre Hotel 402 4 1,608 1,447 264 382,061

G5 86 Sainsbury's Supermarket 4,254 1 4,254 3,829 80 306,288

G5 72 Welcome Gym Maidstone Gym 908 1 908 817 264 215,741

G5 76 TK Maxx, Homesense, The Range Retail 7,168 1 7,168 6,451 30 193,536

G5 77 Wickes Industrial 6,737 1 6,737 6,063 30 181,899

G5 74 Bower Mount Medical Practice Healthcare 607 2 1,214 1,093 160 174,816

G5 81 Medipharmacy Healthcare 399 3 1,197 1,077 160 172,368


54

G5 89 Aldi Supermarket 1,603 1 1,603 1,443 80 115,416

G5 86 Sainsbury's Supermarket 4,254 1 4,254 3,829 80 306,288


G6 91 Invicta House County Hall Commercial 1,999 4 7,996 7,196 96 690,854

G6 131 Village Hotel Maidstone Hotel 3,361 3 10,083 9,075 264 2,395,721

G6 132 Sandling Primary School School 1,511 1 1,511 1,360 120 163,188

G6 134 St Pauls Infant School School 1,883 1 1,883 1,695 120 203,364

G7 92 Kent County Council Commercial 6,123 4 24,492 22,043 96 2,116,109

G7 - N/A N/A - - - - - -

G8 155 Tunbury Primary School School 3,460 1 3,460 3,114 120 373,680

G9 163 The Rowans AP Academy School 957 1 957 861 120 103,356

G9 162 Inspire Academy School 1,649 1 1,649 1,484 120 178,092

G9 167 Maundene School School 2,066 1 2,066 1,859 120 223,128

G9 168 St Thomas More RC Primary School School 2,582 1 2,582 2,324 120 278,856

G9 171 Lordswood School School 3,386 1 3,386 3,047 120 365,688

G9 169 Oaklands School School 5,302 1.5 7,953 7,158 120 858,924

G9 166 Greenacre Academy School 6,293 1.5 9,440 8,496 120 1,019,466

G9 170 Bradfields Academy School 6,422 1.5 9,633 8,670 120 1,040,364

G9 165 Walderslade Girls School School 7,970 2 15,940 14,346 120 1,721,520

G9 164 Morrisons Supermarket 4,152 1 4,152 3,737 80 298,944

H1 - N/A N/A - - - - - -

H11 - N/A N/A - - - - - -

H2 - N/A N/A - - - - - -

H3 23 Ashley Gardens Care Centre Care Home 1,416 3 4,248 3,823 240 917,568

H3 19 Kent Police Headquarters Commercial 8,867 3 26,601 23,941 96 2,298,326

H3 24 Wallis Avenue Surgery Healthcare 212 1 212 191 160 30,528

H3 26 Parkwood Industrial Estate Industrial Estate 108,945 1 108,945 98,051 30 2,941,515

H3 22 Tree Tops Primary Academy School 1,586 1 1,586 1,427 120 171,288

H3 25 Holy Family RC Primary School School 1,696 1 1,696 1,526 120 183,168

H3 21 The Meadows Childrens Centre School 2,363 1 2,363 2,127 120 255,204

H3 18 Kent Police College School 6,543 2 13,086 11,777 120 1,413,288

H3 20 Morrisons Supermarket 6,331 2 12,662 11,396 80 911,664

H4 48 The Shepway Centre Commercial 2,545 1.5 3,818 3,436 96 329,832

H4 49 Shepway Youth and Community Centre Community Centre 1,331 1.5 1,997 1,797 60 107,811

H4 45 Maidstone Leisure Centre Leisure Centre 6,626 2 13,252 11,927 264 3,148,675

H4 50 Oaks Primary Academy School 1,356 1 1,356 1,220 120 146,448

H4 51 Senacre Wood Primary School School 1,380 1 1,380 1,242 120 149,040

H4 46 Madginford Park Infant School School 1,776 1 1,776 1,598 120 191,808

H4 47 Greenfields Community Primary School School 2,414 1 2,414 2,173 120 260,712

H5 96 St Johns C of E Primary School School 2,541 1.5 3,812 3,430 120 411,642

H5 97 Invicta Grammar School for Girls School 12,892 2.5 32,230 29,007 120 3,480,840

H5 98 Tesco Superstore Supermarket 6,766 1 6,766 6,089 80 487,152

H6 135 Hilton Maidstone Hotel 6,413 1.5 9,620 8,658 264 2,285,593

H7 - N/A N/A - - - - - -

H8 157 Industrial Estate Industrial 45,684 1 45,684 41,116 30 1,233,468

H8 156 Swingate Primary School School 4,713 1 4,713 4,242 120 509,004

H9 - N/A N/A - - - - - -

I1 - N/A N/A - - - - - -

I10 202 Gillingham Busines Park Industrial 187,449 1 187,449 168,704 30 5,061,123

I11 - N/A N/A - - - - - -

I2 - N/A N/A - - - - - -

I3 29 Charltons Industrial 15,543 1 15,543 13,989 30 419,661

I3 28 Langley Park Academy School 1,908 3 5,724 5,152 120 618,192

I4 - N/A N/A - - - - - -

I5 103 Barty House Nursing Home Care Home 1,636 2 3,272 2,945 240 706,752

I5 102 Hillbeck Care Home Care Home 1,672 2 3,344 3,010 240 722,304

I5 101 Tudor Park Marriott Hotel & Country Club Hotel 5,298 2 10,596 9,536 264 2,517,610

I6 - N/A N/A - - - - - -

I7 - N/A N/A - - - - - -

I8 - N/A N/A - - - - - -

I9 178 Parkwood Community Centre Community Centre 1,137 1 1,137 1,023 60 61,398

I9 179 Parkwood Health Centre Healthcare 1,069 2 2,138 1,924 160 307,872

I9 177 St Augustine of Canterbury Catholic School School 1,339 1 1,339 1,205 120 144,612

I9 173 Hempstead Junior School School 1,823 1 1,823 1,641 120 196,884

I9 172 Hempstead Infant School School 2,242 1 2,242 2,018 120 242,136

I9 176 Deanwood Primary & Childrens Care School 3,618 1 3,618 3,256 120 390,744

I9 174 Fairview Community Primary School School 4,006 1.5 6,009 5,408 120 648,972

I9 175 Hempstead Valley Shopping Centre Shopping Centre 30,742 1.5 46,113 41,502 40 1,660,068

J1 - N/A N/A - - - - - -

J10 - N/A N/A - - - - - -

J11 - N/A N/A - - - - - -

J2 - N/A N/A - - - - - -

J3 - N/A N/A - - - - - -

J4 52 Leeds & Broomfield C of E Primary School School 569 1 569 512 120 61,452

J5 - N/A N/A - - - - - -

J6 - N/A N/A - - - - - -

J7 - N/A N/A - - - - - -

J8 - N/A N/A - - - - - -

J9 181 Travelodge Medway M2 Hotel 1,002 2 2,004 1,804 264 476,150

J9 180 Parkwood Pre School & Junior School School 4,263 1 4,263 3,837 120 460,404

K1 - N/A N/A - - - - - -

K10 - N/A N/A - - - - - -

K11 - N/A N/A - - - - - -

K2 - N/A N/A - - - - - -

K3 - N/A N/A - - - - - -

K4 - N/A N/A - - - - - -

K5 - N/A N/A - - - - - -

K6 - N/A N/A - - - - - -

K7 - N/A N/A - - - - - -

K8 - N/A N/A - - - - - -

K9 - N/A N/A - - - - - -

186,227,896

Allington Energy Recovery Centre


55

Appendix 2 – Permitted Planning Applications

Project Name / Address Development Description Developer / Applicant Name Planning Ref and Approval DateDistance (from Allington

site boundary)

Allington Waste Management Facility Laverstoke Road Allington

Maidstone Kent ME16 0LEThe permanent retention of the Allington Waste Management Facility (KCC ref: KCC/TM/0111/2017) FCC

17/01223/WAS

(13 Nov 2017)0

Land West Of Hermitage Lane And East Of Units 4A 4B And 4C Mills

Road Quarry Wood Industrial Estate Aylesford Kent

Hybrid Planning Application: The demolition of all existing buildings and structures and redevelopment to provide a new

Centenary Village. Full planning permission for the redevelopment of the site to provide 24 Assisted Living Apartments, 40

Dwellings, Community Hub, Access Roads, Landscaping and Parking (Phase 2). Outline planning permission for up to 35 Dwellings

(all matters reserved) (Phase 3).

Royal British Legion Industries (RBLI) Ltd 17/03513/FL (29 Mar 2018) 0.6

Phoenix House Forstal Road Aylesford Kent ME20 7AU Erection of 12 No. 3 storey townhouses on vacant site. 3 No. units to be affordable housing, including change of use status GBA Designs Ltd 17/00964/FL (01 Feb 2018) 0.65

Denmark House Forstal Road Aylesford Kent ME20 7AS Demolition of existing industrial premises and redevelopment of new industrial premises Mr S Read - Contractors Equipment Hire 18/00188/FL (23 Apr 2018) 0.7

Land At St Michaels Close Aylesford Kent ME20 7ARErection of three buildings subdivided into seven individual units consisting of 3839 sq.m of floor space for B1(b) B1(c), B2 & B8

employment uses with ancillary yards, parking and landscaping.LMF Holdings Ltd 17/506037/FULL (15 Mar 2018) 0.8

Land At Forstal Road Aylesford Maidstone Kent ME20 7AEDemolition of existing warehouse and 2 residential units; the erection of 23 single storey units with internal mezzanines for B1c,

B2, B8 use and trade counter, associated car parking, servicing, landscaping and access provision. Gallagher Properties Ltd 18/500249/FULL (4 May 2018) 0.8

Former Somerfield Distribution Centre, Station Road, Aylesford, Kent,

ME20 7QR

Construction of 92 dwellings with associated parking, roads, landscaping and public open space (Revised scheme to that approved

under application TM/13/03109/FL)Challenger Text Ltd 17/03350/FL (21 Jan 2019) 0.98

Cobtree Manor Golf Course Chatham Road Sandling Maidstone Kent

ME14 3AZ

Demolition of existing clubhouse and erection of new replacement clubhouse incorporating bar, meeting rooms, gym and exercise

studio, linked 12 bay driving range, separate golf buggy store, bin store and covered bike rack. Existing car park and entrance road

to be realigned and provide additional 47 parking spaces. Upgrade, re-model and re-contour the existing 18- hole golf course.

Academy 9 hole course; short game activity zone all on practice ground outfield. Landscaping and biodiversity enhancement

through extensive planting and the connectivity of habitats.

Mytime Active 18/504490/FULL (28 Feb 2019) 1

Brett House St Michaels Close Aylesford Kent ME20 7XE

Approval of Reserved Matters (Access, Appearance, Landscaping, Layout and Scale being sought) following outline permission

15/507520/OUT for erection of 5 flexible commercial yard spaces, with each containing a building of up to 500 square metres,

yard spaces providing a mix of uses with associated access, parking and earthworks, retaining structures and landscaping works.

Aveling Securities Ltd 16/505686/REM (3 Nov 2016) 1.1

Cobtree Manor Golf Club Blue Bell Hill Aylesford Kent

Demolition of existing clubhouse; construction of new replacement clubhouse incorporating spike bar, meeting rooms, gym and

exercise studio, linked 12 bay driving range, separate golf buggy store, bin store and covered bike rack; existing car park and

entrance road to be realigned to lead to apron to the front of the new clubhouse and provide additional parking; new parking to

be provided on current location of existing clubhouse. 47 additional spaces provided; upgrade, re-model and re-contour the

existing 18 hole golf course; new 9 hole course on the practice ground; a short game activity zone and practice ground outfield;

landscaping and biodiversity enhancement through extensive planting and the connectivity of habitats; proposed rainwater

harvesting scheme will irrigate the course, reducing the need for mains water.

Mytime Active19/00443/FL

(07 May 2019)1.2

Units 1 To 18 Lake Road Quarry Wood Industrial Estate Aylesford Kent

ME20 7TQ

Erection of extensions to existing buildings for use falling within use classes B1(c), or B8; alterations to existing access roads

including introduction of one-way system within site; excavation of foot of embankment and erection of retaining wall, provision

of additional on-site parking; erection of security fencing with gates along site frontage with Lake Road

Wynnstay Properties Plc 15/04031/FL ( 21 Mar 2016) 1.3



56

Land At Castle Dene Maidstone Kent ME14 2NH Erection of 14no. detached residential dwellings with associated parking, access and infrastructure works. P Car Properties Ltd 17/503520/FULL (21 May 2018) 1.4

Mill Hall Depot Mill Hall Aylesford Kent ME29 7JN Residential development of 58 no. apartments and 21 no. town houses Castledene Transport Limited TM/07/00241/FL (31/05/2013) 1.5

Springfield Mill, Sandling Road, Maidstone, Kent, ME14 2LD

Full planning application for demolition of existing buildings, and development of 295 residential units (use class C3), including 218

x 1-2 bed apartments and 77 x 2-4 bed houses, including associated car parking, public realm and landscaping works, Grade II

Listed Rag Room to be preserved and re-used for community (D1), office (B1) or residential (C3) use

Redrow Homes LTD 17/502432/FULL (08 Jun 2018) 1.7

94 Mill Hall Aylesford Kent ME20 7JNDemolition of the existing building and redevelopment of the site to provide a five storey building with parking and landscaping at

ground floor level and 21 residential units on the upper four floors, together with landscaping and other associated worksDesco Design & Build Co Ltd 18/00995/FL (29 Jan 2019) 1.7

Aylesford Newsprint Bellingham Way Larkfield Aylesford Kent ME20

7PW

Site clearance and demolition of all buildings and structures on site down to slab level (no earth works) with the exception of

ancillary infrastructure including borewell pumphouses, substations and the security office. Infilling of voids left from

infrastructure removal

Aylesford Newsprint 17/00493/FLEA (24 Apr 2017) 1.7

East Malling Research Station New Road East Malling West Malling

Kent ME19 6BJCommercial high-tech glasshouse development with attached service building for growing new varieties of soft fruit plants Driscoll's Genetics Ltd 18/00207/FL (22 May 2018) 2

Land South West Of, Oakapple Lane, Maidstone, KentOutline planning application with all matters reserved for the demolition of existing structures and erection of up to 80 dwellings

with associated works for access, parking, infrastructure, open space and landscaping.Mr & Mrs Sunnuck & Mrs Foster-Crouch 13/2079 (01 Dec 2015) 2.2

J Dempson And Co Ltd Hermitage Mills Hermitage Lane Maidstone Kent

ME16 9NPErection of 3 no. buildings for storage (B8 Use Class). Dempson Ltd 17/505908/FULL (27 Mar 2018) 2.3

Land North And West Of Solar Park Bull Lane Eccles Aylesford Kent Erection of battery storage facility Battery Energy Storage Solutions Limited 17/02496/FL (05 Dec 2017) 2.7

PolyPipe Terrain College Road Larkfield Aylesford Kent ME20 7PJ Install (CHP) combined heat and power plant Polypipe18/03009/FL

(22 Feb 2019)2.7

5 Tonbridge Road Maidstone Kent ME16 8RLOutline application (All matters reserved) for redevelopment with up to 65 dwellings and associated vehicular and pedestrian

access, car and cycle parking, street and external lighting, main services, bin stores and other ancillary development Corbens Place Ltd 15/510179/OUT (22 Dec 2016) 2.9

Maidstone Borough Council Car Park Corner Of Union Street Queen

Anne Road Maidstone Kent

Creation of a new 48 space public car park, together with 30 flats in a stepped block backing onto Queen Anne Road. A row of 6

semi detached houses fronting Union Street and two terraced rows arranged as a 'Mews' providing 11 houses, together with a

new estate road, allocated parking and soft landscaping.

MBC Regeneration & Economic Development 17/504428/FULL (7 Mar 2018) 3.1

Sharp House Tovil Green Tovil Kent ME15 6RL Erection of 13 dwellings together with associated landscaping and parking. Mr Maasbach 16/506266/FULL (19 Apr 2017) 3.1

J Sainsbury Plc Romney Place Maidstone Kent ME15 6SF Erection of Groceries Online (GOL) distribution hub, stairwell, basement car park for staff and associated car park alterations. Sainsbury's Supermarkets Ltd 17/500617/FULL (15 May 2017) 3.3

Land West Of Eclipse Park Sittingbourne Road Maidstone Kent ME14

3EN

The development of the land to accommodate 50 dwellings (7 x 1 bed flat, 8 x 2 bed flats, 12 x 2 bed houses, 11 x 3 bed houses,

and 10 x 4 bed houses and 2 x 2 bed FoGs) together with associated new access road, car parking, landscaping and open space.Persimmon Homes South East 17/501778/FULL (4 May 2018) 3.6



57

Land At Forest Hill Tovil Kent Construction of 22 dwellings with associated landscaping and car parking Rouxville Investments Limited 17/502355/FULL (27 Jul 2018) 3.6

Plots 6,7 & 8 Eclipse Park Sittingbourne Road North Maidstone KentOutline application for plots 6, 7 and 8 for B1 office development in relation to extant planning permission MA/13/0389 with all

matters reserved for future considerationGallagher Properties Ltd 16/507366/OUT (8 Sept 2017) 3.7

J B Garage Doors Straw Mill Hill Tovil Maidstone Kent ME15 6FLErection of residential development providing up to 18 units and provision of parking spaces. Access and scale being sought, with

remaining issues to be determined as reserved matters. Baker Byrne LLP 17/503237/OUT (29 Sept 2018) 3.7

Paul Sandby Court Turkey Mill Business Park Ashford Road Maidstone

Kent ME14 5PPPlanning application for three storey office development, new bridge crossing, car parking and landscaping. Turkey Mill Investments LTD 16/502359/FULL (24 Jun 2016) 3.8

Plot 9 Eclipse Park Sittingbourne Road North Maidstone Kent Erection of a Class A1 Retail Store and associated servicing, parking, landscaping and access arrangements. Marks And Spencer Plc & Gallagher Properties Ltd 18/502144/FULL (18 Sept 2018) 3.8

Land North Of, Heath Road, Coxheath, Maidstone, Kent, ME17 4TB

Outline planning application for up to 55 residential dwellings with means of access. All other matters reserved.

(18/506425/REM | Approval of Reserved Matters (Access, Appearance, Landscaping, Layout and Scale being sought) pursuant of

Outline application 13/1979 for the erection of 55 residential dwellings (as amended by 18/504066/NMAMD) - Approved 16 Apr

2019)

Mr M J Older 13/1979 (10 Jan 2018) 3.8

Valley Park Community School Huntsman Lane Maidstone Kent ME14

5DT

Approval of Reserved Matters for Access, Appearance, Landscaping, Layout and Scale following Outline Approval for 13/1687 - An

outline application with all matters reserved for future consideration for a new 12 court sports hall and ancillary accommodation.

To be completed in 2 phases.

The Valley Invicta Academy Trust 17/503510/REM (12 Jan 2018) 4

Land At Valley Park School New Cut Road Maidstone Kent ME14 5SL Erection of a three storey secondary school with associated access, car parking and landscaping. BAM Construction Ltd 17/501471/FULL (24 Sept 2018) 4

Newnham Court Shopping Village Bearsted Road Weavering Kent ME14

5LH

Refurbishment and extension of existing garden centre buildings, including the enclosure of 2570 sqm GIA of existing external

retail floor space to become internal retail floor space and ancillary cafe, amendments to the elevations and roof of existing

buildings including installation of new cladding and roofing materials to existing glasshouses, reconfiguration of existing overflow

car park, associated landscaping, and continued use of part of the site for external retail display.

Harvestore Systems (Holdings) Ltd 18/500330/FULL (2 May 2018) 4

Newnham Park Bearsted Road Weavering Kent

Outline Application with access matters sought for development of medical campus comprising up to 92,379 m² of additional

floorspace (including additional hospital facilities, clinics, consultation rooms and a rehabilitation centre (classes C2/D1);

education and training facilities with residential accommodation (class C2/D1); keyworker accommodation for nurses and doctors

(class C3); pathology laboratories (class B1); business uses (class B1); ancillary retail services (class A1, A2, A3); and up to 116 bed

class C2 neuro-rehabilitation accommodation; internal roads and car parks, including car park for residents of Gidds Pond

Cottages; hard and soft landscaping including creation of a nature reserve (to renew existing consent 13/1163).

Kent Medical Campus Ltd 16/507292/OUT (16 Jun 2017) 4.1

The Maidstone Studios Vinters Business Park New Cut Road Maidstone

Kent ME14 5NZ

Demolition of a number of disused temporary structures associated with Maidstone Studios and erection of 77 dwellings together

with access, parking, garaging, landscaping and ancillary works on land to east of Maidstone StudiosHillreed Homes 14/500290/FULL (22 Dec 2015) 4.2

Popesfield Bearsted Road Weavering Kent

Erection of a new two-storey primary school and special educational needs secondary school with vehicular and pedestrian access

via Kent Medical Campus, together with associated car parking and drop off area, pedestrian access, drainage, areas for formal

and informal outdoor play and landscaping works.

Bowmer and Kirkland Ltd for DfE 18/506656/FULL (3 May 2019) 4.3



58

Plot 5 Kent Medical Campus Kent Institute Of Medicine And Surgery

Newnham Court Way Weavering Maidstone Kent ME14 5FT

Approval of reserved matters (siting, design, external appearance and landscaping) pursuant to outline permission MA/13/1163

for the development of a 4222 sqm GEA class C2 care facility comprising a mixture of step-down residential, nursing, dementia,

rehabilitation and respite care at Zone 5, Kent Medical Campus, Maidstone

Westlin Bearsted Ltd 17/501723/REM (13 Jul 2017) 4.3

Orchard Farm Well Street East Malling West Malling Kent ME19 6JWChange of use planning application for an extension to Orchard Farm Holiday Park to site 12 no. additional Holiday Lodges with

extensive landscaping and the creation of two pondsMr John Fuller 19/00147/FL (27 Mar 2019) 4.3

JennyChem House Mid Kent Business Park Sortmill Road Snodland Kent

ME6 5UA

Change of use of the 'JennyChem' building to a Big Motoring World vehicle repair and car spraying facility (i.e. a change of use

from B1 and B8 use to flexible B1, B2 and B8 use) with the installation of extraction equipment and flues Big Motoring World 18/02622/FL (28 Dec 2018) 4.3

Land South Of Kent Institute Of Medicine And Surgery Newnham Park

Maidstone Kent ME14 5FT

Approval of Reserved Matters following outline planning permission MA/13/1163 for the erection of a 65-bed hospital, with

associated parking and landscaping at Zone 10, Kent Medical Campus, Maidstone (appearance, landscaping, layout and scale

being sought).

Cygnet Healthcare 16/500360/REM (29 Apr 2016) 4.4

Village Centre Parcel LC Peters Pit And Peters Works Site Hall Road

Wouldham Rochester Kent

Detailed application for multi-use community hall (including use as a nursery), village centre communal parking, community

centre parking, landscaping, nursery play space, the site for a Police Post, access from the village spine roadTrenport (Peters Village) Limited

18/01553/FL

(9 Aug 2018)5

Cpi Books Limited Badger Road Lordswood Chatham ME5 8TDDemolition of existing redundant buildings to facilitate the construction of a new production and warehouse facility with ancillary

offices, together with the repositioning of an existing access off Revenge Road and associated works.

Matthew Baldwin - CPI Books Limited MC/18/3608 (13 May 2019) 5.1

Tara 419 Walderslade Road Walderslade Chatham ME5 9LL Construction of new 32 bed nursing care home with associated landscaping and parking Mr Killick MC/18/0207 (21 Nov 2018) 5.5

Land East Of Gleamingwood Drive Lordswood Kent

Approval of Reserved Matters for Access, Appearance, Landscaping, Layout, and Scale, pursuant of 15/503359/OUT - Outline

application with all matters reserved for residential development (approx 89 dwellings) plus open space, biomass plant and

access road (plus emergency access).

McCulloch Homes And Palm Developments Ltd 18/505455/REM (18 Jun 2019) 5.6

Areas 10, 11 And 15 Kings Hill Phase 3 Gibson Drive Kings Hill West

Malling Kent

Reserved Matters Application (access, appearance, landscaping, layout and scale) for Areas 10, 11 and 15 for the erection of 166

dwellings (including 112 affordable housing units) with associated parking, access, open space and landscaping pursuant to

Condition 1 and details pursuant to Conditions 12 (highways), 19 (parking), 20 (levels), 23 (landscape strategy), 24 (landscaping

scheme - partial discharge), 37 (foul drainage) and 38 (surface water drainage) of Outline Planning Permission

TM/13/01535/OAEA (Residential development for 635 dwellings and associated community facilities) Outline permission not

available to view online.

Clarion Housing Group 18/01609/RM (28 Jan 2019) 5.8

Site H1 (60) Forstal Lane Coxheath KentOutline Application for residential development for up to 210 dwellings together with access off Forstal Lane, 1.85 hectares of

open space and associated infrastructure (Access being sought). Charterhouse Property Group 17/502072/OUT (27 Feb 2018) 6.3

Land West Of Rochester Road Rochester Kent

Hybrid planning application: (A) Full planning application for the creation of a new vehicular access to Rochester Road, the

erection of buildings with up to 2,226spm of floor space for storage, distribution use and wholesale trade distribution (Class B8)

and/or use for general industry (Class B2) including layout of internal road and hardstanding with the installation of services

(Phase 1). (B) Outline planning application with all matters except access reserved, for the erection of buildings with up to

2,021spm of floor space for use with storage, distribution, wholesale trade distribution (Class B8), general industry (Class B2)

and/or offices (Class B1) including the change of use of up to 1,470spm of open land to storage and distribution (Class B8) and the

layout of internal roads and hardstanding with the installation of services (Phase 2)

TBH Real Estate Developments Ltd17/02655/FL

(2 Feb 2018)6.4

Land At 185 Walderslade Road Walderslade Chatham ME5 0NDDemolition of 3x existing properties and construction of 20no dwellings consiting of 1x two bedroom, 10x three bedroom, and 9x

four bedroom dwellings with associated parking and new access road. Mr Mara MC/16/0370 (10 Apr 2017) 6.4



59

Unit D Horsted Retail Park Maidstone Road Chatham ME5 9SQ

Construction of 1no. drive-thru Restaurant (Class A3/A5) and 1no. foodstore; refurbishment of existing retail unit; revised car

parking arrangements; widening of existing retail park access road; landscaping; and associated works including relocation of

substation and off-site highway improvements

Mr Rainbird MC/17/4259 (26 Jun 2018) 6.5

Land West Of 73 Haste Hill Road Boughton Monchelsea Kent ME17 4LNOutline planning application for residential development of eleven dwellings considering access from Hubbard's Lane with all

other matters (appearance, landscaping, layout and scale) reserved for future consideration Mr B Piper 16/500014/OUT (16 Nov 2016) 6.7

Lyewood Farm Green Lane Boughton Monchelsea Maidstone Kent

ME17 4LD

Demolition of the existing chicken sheds and associated structures, the erection of 85 residential dwellings, together with

associated access, parking, landscaping and drainage. Crest Nicholson 18/502683/FULL (17 Sept 2018) 6.8

Land At Barty Farm Roundwell Bearsted Kent ME14 4HNOutline application for the erection of 100 dwellings - reserved matters for which approval is being sought: Access, including

access widening comprising relocation of wall forming part of outer curtilage of Barty Nursing Home (Grade II listed) Crabtree And Crabtree (bearsted) Limited 14/506738/OUT (20 Mar 2018) 6.9

Land To The South Of Cross Keys Bearsted Kent

Erection of 30 no. open market homes and associated garaging, and erection of 20 no. affordable homes, construction of access

road and bridge, and provision of open space, ecology park and new public footpath. Demolition of 24 bay garage court and

redevelopment to provide a 16 bay garage court and amenity storeroom

Country House Developments 14/504795/FULL (6 Jul 2016) 6.9

Land North Of Bicknor Wood Sutton Road Maidstone Kent Erection of 250 residential dwellings together with associated access, parking, public open space, drainage and landscaping. Bellway Homes Ltd 17/501449/FULL (19 Mar 2018) 7.1

Former D/X Freight Site Maidstone Road Rochester ME1 3DQConstruction of 11 industrial units for use in association with Use Class B1(c) (light industrial), B2 (general industrial) and B8

(storage and distribution) with associated servicing, parking and landscaping - demolition of existing buildingN/A - Savills MC/18/0558 (23 Apr 2018) 7.1

Land To West Of 70 Church Street Boughton Monchelsea ME17 4HN

Demolition of existing buildings and construction of 18 new C2 Extra Care Retirement Homes, Club House, Car Ports, Bin Stores,

Landscape Scheme and Access Road. Demolition of garage to rear of 70 Church Street and erection of new oak framed car port to

rear garden

Country House Homes Ltd 16/502993/FULL (6 Sept 2018) 7.2

Haynes Bros Ltd Sutton Road Maidstone Kent ME15 9NH

Redevelopment of the site to provide 7 warehouse/industrial units for use in association with Use Class B1(c) (light industrial), B2

(general industrial) and B8 (storage and distribution) with first floor mezzanines, a car dealership comprising showroom (Sui

Generis), workshop, offices, valet facility and car display area with associated parking, external works, underground services and

soft landscaping.

Chancerygate (Leinster Mews) Ltd 17/506583/FULL (27 Apr 2018) 7.4

Hempstead Valley Shopping Centre Hempstead Valley Drive

Hempstead Gillingham

Redevelopment of existing surface level car parks to provide for retail or retail and leisure development, construction of a car park

deck, amendments to access routes, servicing and internal pedestrian and vehicular routes, public realm works and landscaping Trustees Of The HVSC MC/17/3484 (12 Apr 2018) 7.6

Land At Bicknor Farm Sutton Road Langley Kent ME17 3NGResidential development of 271 dwellings including 30% affordable housing, access and associated infrastructure (resubmission of

14/506264/FULL)Jones Homes (Southern) Ltd 16/503775/FULL (19 Jan 2017) 7.7

Rochester Grammar School For Girls Maidstone Road Rochester

Medway ME1 3BY

Construction of an extension to existing gym block including changing rooms and fitness suite, conversion of existing gym to

activity studio, construction of a two storey two classroom art block and additional community use car parking for sports hall (part

demolition of existing gym block)

Mr Nick Forward - Thinking Schools Academy Trust MC/19/1006 (16 Jul 2019) 7.7



60



61

Appendix 3 – Submitted Planning Applications

Land South Of Sutton Road Langley Kent

Outline application for residential development, together with non-residential uses (including potentially A1 (retail), A3 (sale of

food and drink on the premises e.g. restaurant), A4 (public house), D1(a) (medical use), D1(b) (creche/day centre/day nursery), or

B1 (office), up to 0.4 ha of land reserved for C2 (residential care), the reservation of 2.1 ha of land for primary education (use class

D1), public open space in the form of natural green space, allotments, play facilities and informal open space together with

landscaping, parking, footpath and cycle links and the necessary servicing, drainage and the provision of necessary utilities

infrastructure, with all matters reserved for future consideration with the exception of access (Amended proposal).

Countryside Properties 15/509015/OUT (18 Apr 2018) 7.9

Wrotham Quarry Addington Lane Trottiscliffe West Malling KentExtension to existing quarry to extract silica sand, construction sand and to infill the void with inert waste on land to the north of

Addington Lane (KCC ref. KCC/TM/0378/2014)Ferns Group 14/04075/MIN (11 Sep 2016) 8

Land At Mount Avenue/Blunden Lane Yalding KentOutline application for a residential development of 30 dwellings considering the access arrangements from Mount Avenue and

Blunden Lane with all other matters (appearance, landscaping, layout and scale) reserved for future consideration.Mr Pete Bland - Millwood Designer Homes Ltd

15/509402/OUT (allowed at appeal 31 Jan

2017)8.1

Land At Woodcut Farm Ashford Road Hollingbourne Kent ME17 1XHOutline application for a mixed commercial development comprising B1(a), B1(b), B1(c) and B8 units, with a maximum floor space

of 45,295 square metres (Access being sought) (Resubmission of 15/503288/OUT)Roxhill Developments Ltd 17/502331/OUT (20 Jul 2018) 8.1

Vicarage Field At Wares Farm Linton Hill Linton Kent Erection of 13 dwellings and garages with associated access and landscaping. Countryside Properties Ltd. 16/505401/FULL (11 Jun 2018) 8.2

Land South Of Sutton Road Langley Kent

Outline application for residential development, together with non-residential uses (including potentially A1 (retail), A3 (sale of

food and drink on the premises e.g. restaurant), A4 (public house), D1(a) (medical use), D1(b) (creche/day centre/day nursery), or

B1 (office), up to 0.4 ha of land reserved for C2 (residential care), the reservation of 2.1 ha of land for primary education (use class

D1), public open space in the form of natural green space, allotments, play facilities and informal open space together with

landscaping, parking, footpath and cycle links and the necessary servicing, drainage and the provision of necessary utilities

infrastructure, with all matters reserved for future consideration with the exception of access (Amended proposal).

Countryside Properties 15/509015/OUT (18 Apr 2018) 8.3

Our Zone Pattens Lane Rochester Medway ME1 2RBConstruction of a two storey building to provide a 20 bedroom dementia care respite facility - demolition of existing

garage/storage area - Resubmission of MC/18/1737 Medway Community Healthcare (MCH) MC/18/2308 (27 Sept 2018) 8.3

Chatham Golf Centre Street End Road Wayfield Chatham ME5 0BG Construction of 131 residential dwellings with associated parking and landscaping works Mr J Goodban - Bellway Homes Ltd MC/17/2767 (10 Oct 2018) 8.4

Former St Matthews Playing Field Borstal Street Borstal Rochester ME1

3HJ

Construction of 9 two bedroom and 9 three bedroom houses with associated access and parking and formation of community

open space (Resubmission of MC/14/2862)N/A - DHA Planning

MC/15/0958 (approved @ appeal -

APP/A2280/W/15/3134776 - 5 April 2016)8.6

Land At Brickfield Darland Farm Pear Tree Lane Hempstead Gillingham

ME7 3PP

Outline application with some matters reserved (appearance, landscaping, layout and scale) for a residential development of up

to 44 dwellings with associated garaging, access, landscaping and open spaceMr Attwood - F D Attwood & Partners MC/16/2776 (15 Mar 2017) 8.7

Redvers Centre Glencoe Road Chatham Medway ME4 5QDDemolition of the former Redvers Centre and construction of residential development comprising six 3 bedroom houses together

with six 1 bedroom and twelve 2 bedroom apartments

Mr N Sait - Woodcroft Developments (Chatham) LtdMC/19/0886 (2 Jul 2019) 9

Ledian Farm, Upper Street, Leeds, Maidstone, Kent, ME17 1RZHybrid planning application for the redevelopment of Ledian Farm to provide a Continuing Care Retirement Community scheme

(C2 Use Class).English Care Villages & Gallagher Props. 12/2046 (16 Apr 2014) 9.3



62

Project Name / Address Development Description Developer / Applicant Name Planning Ref and Approval DateDistance (from Allington

site boundary)

Land South Of London Road And East Of Hermitage Lane, Aylesford,

Kent

Outline Application: The erection of up to 840 dwellings (including affordable homes) with public open space, landscaping,

sustainable drainage systems, land for a Primary School, doctors surgery and for junction improvements at Hermitage Lane/A20

junction, and a link road between Poppy Fields roundabout and Hermitage Lane. Vehicular accesses into the site from Poppy

Fields Roundabout and Hermitage Lane. All matters reserved with the exception of means of access.

Gladman Developments and The Trustees of

Whitepost Field17/01595/OAEA 0.08

Land South West Of London Road And West Of Castor Park, Allington,

Maidstone, Kent

Outline Application: permission for layout, access and scale for a residential scheme of 106 units comprising mix of 1, 2, 3 and 4

bedroom dwellings (including bungalows, houses and apartments), associated access and infrastructure.

Clarendon Homes and Trustees of The Andrew

Cheale Estate19/00376/OAEA 0.14

Land South West Of London Road And West Of Castor Park Beaver

Road Allington Maidstone Kent ME16 0XU

Outline application for a residential development 106 units comprising a mix of 1, 2, 3, and 4 bedroom dwellings (including

bungalows, houses and apartments), associated access and infrastructure (Access, Layout and Scale being sought).

Clarendon Homes & Trustees Of Andrew Cheale

Estate19/500769/EIOUT 0.2

South Aylesford Retail Park Quarry Wood Industrial Estate Aylesford

Kent

Erection of new retail units, a "pod" building for retail and cafe restaurant purposes with local amenity uses above, a new area of

public realm along with access, car parking, servicing facilities, landscaping and associated worksThe Crown Estate 19/00979/FL 1.2

Garden Centre Rear Of 400 Hermitage Lane Maidstone Kent ME16 9NT

Outline Application: Redevelopment of existing garden furniture retail centre (with ancillary cafe) and commercial cattery and

small pet boarding centre with 9 no. dwellings comprising 3 no. detached four bedroom houses and 6 no semidetached three

bedroom houses with associated alterations to existing access road, new garaging and parking facilities and surface water run off

pond

Mr & Mrs Warner 18/03048/OA 1.6

KCC Springfield Library HQ Sandling Road Maidstone ME14 2LD

Demolition of the existing County Central Library and associated buildings, and erection of six-to-sixteen storey residential

development of 170no. Apartments and 85no. Car parking spaces at the former KCC Springfield Library site, Sandling Road,

Maidstone.

Peker Holdings Ltd 17/504568/FULL 1.8

Development Site South Of Brampton Field Between Bradbourne Lane

And Kiln Barn Road, Ditton, Aylesford, Kent

Outline Application: Development of the site to provide up to 300 dwellings (Use Class C3) and provision of new access off Kiln

Barn Road. All other matters reserved for future considerationEast Malling Trust 18/02966/OA 2

Land West Of Old Chatham Road Sandling Kent Outline application with access matters reserved for up to 39 dwellings with associated infrastructure and works. Roadhouse Building And Civil Engineering Ltd 19/503870/OUT 2.2

Land At Springwood Road Barming Maidstone Kent ME16 9NYDemolition of existing development and erection of two staff accommodation blocks, comprising 160 units, together with

associated parking, drainage and landscaping.Springwood Holdings Ltd 19/503871/FULL 2.5

Development Site East Of Clare Park Estate New Road East Malling

West Malling Kent

Outline Application: Development of the site to provide up to 110 dwellings (Use Class C3) and the site access arrangement. All

other matters reserved for future considerationEast Malling Trust 18/03008/OA 3.1

Tovil Working Mens Club Tovil Hill Tovil ME15 6QS

Upgrading existing access road and amendments to parking areas, relocation of two petanque courts and construction of screen

wall to existing Working Men's Club. Formation of access drive to serve new development off shared access drive and erection of

7no. detached houses with car barns, 2no. semi detached houses with associated parking, 3no. terraced houses with allocated

parking spaces, a block of 6no. maisonettes with shared parking court, and associated landscaping and ancillary works.

Clarendon Homes Construction Limited 19/503652/FULL 3.3

Land At Postley Road Maidstone Kent ME15 6RHApproval of Reserved Matters for access, appearance, landscaping and scale being sought following Outline Planning Permission

13/2038 for the erection of 62no. dwellings with associated car parking, landscaping and demolition of existing dwellingChailey Homes 19/503702/REM 4.3



63

The Oast House Hollow Lane Snodland Kent ME6 5LB

Partial demolition of existing vacant building, change of use of remaining floorspace and erection of new single storey extension

for mixed restaurant and hot food takeaway (mixed A3/A5) use, incorporating a 'drive-thru' lane, creation of new vehicular access

and egress point from Hollow Lane, provision of car and cycle parking, plant and extraction system, landscaping and both

freestanding and elevational internally illuminated and non-illuminated signage

Zenacrown Limited 19/00786/FL 4.4

Innovation Park Medway Rochester Airport Maidstone Road Chatham

Kent ME1 2XXMixed use business park, featuring c101,000sqm of predominantly high tech and innovation oriented B1/B2 commercial uses Regeneration 19/01419/FL 5.5

Development Site North Of Vantage Point Holborough Road Snodland

Kent

Erection of 4 no. warehouse units (Use Classes B1c/B2/B8) and 2 no. Drive-Thru units (Use Classes A3 and/or A5), together with

the provision of parking, landscaping and associated worksWrenbridge (Snodland) LLP 19/00449/FL 5.6

Former Victoria Cross Public House 614 Lordswood Lane Lordswood

Chatham Medway ME5 8QX

Demolition of existing public house/restaurant and construction of a three storey building with restaurant (A3 use) on part of

ground floor level and 22 flats (on part ground floor level, first and second floor levels (C3 use) along with car parking, landscaping

and associated works

Mr Matthew Hannon - Vagon LimitedMC/19/0334 5.8

Land West Of Church Road Otham Kent ME15 8SBOutline application for up to 440 residential dwellings, with associated access, infrastructure, drainage, landscaping and open

space (Access being sought with all other matters reserved for future consideration) Bellway Homes Limited 19/501600/OUT 5.8

Innovation Park Medway Rochester Airport Maidstone Road Chatham

ME1 2XX

Creation of a mixed use business park, featuring c101,000sqm of predominantly high tech and innovation oriented B1/B2

commercial uses Regeneration MC/19/1556 5.9

Land East Of King Hill West Malling Kent

Outline Application: Demolition of existing dwellinghouse (Sportsmans' Bungalow, 124 Teston Road) and outbuildings and

erection of up to 120 dwellings including 40% affordable housing, with public open space, a community orchard, landscaping and

sustainable drainage system (SuDS) and vehicular access point from King Hill. All matters reserved except for means of access

Gladman Developments Ltd 18/01013/OA 6

Recreation Ground Knowle Road Wouldham Rochester Kent Change of use of part of the existing recreation ground to allow for the erection of a new village hall Wouldham 19/01549/FL 6

Land At East Hill Chatham Kent

Outline planning application with some matters reserved (appearance, layout, scale and landscaping) for construction of up to

800 dwellings, primary school, supporting retail space of up to 150sqm and GP surgery with associated road link between North

Dane Way and Pear Tree Lane and other road infrastructure, open space and landscaping.

F D Attwood & Partners MC/19/0765 6.3

Binbury Park Bimbury Lane Detling Maidstone Kent

Outline application (with all matters reserved apart from access) for the erection of up to 1,750 dwellings including affordable

housing, 46,000 sq.m of commercial space, a hotel, a local centre, a new primary school, a park and ride facility, strategic highways

improvements including new Kent Showground access/egress, accesses/roads including a new bridleway bridge, parking,

associated open space, landscaping, services, and Sustainable Drainage Systems. In addition the proposals include a publicly-

accessible country park including the Binbury Motte and Bailey Castle Scheduled Ancient Monument.

Binbury Park Estates Ltd, E J Mackelden & Sons

(Bobbing) Ltd18/504836/EIOUT 6.3

Scarbutts And Winsor Works London Road Addington West Malling

Kent ME19 5AN

Redevelopment of the site to provide 10 x detached dwelling houses with associated parking, turning, landscaping and

improvements to the access roadColdrum Homes Ltd 19/01067/FL 6.4

Gibraltar Farm Ham Lane Hempstead Gillingham Kent ME7 3JJ

Outline Application (with all matters reserved except access) for the erection of up to 450 market and affordable dwellings,

children's nursery and supporting retail space up to 85sqm, with provision of access; estate roads; cycle and pedestrian routes;

residential and community open space and landscaping; off-site highway improvements including new junction for Lidsing

Road/Hempstead Road, realignment of Lidsing Road, change to prioritisation of the junction of Lidsing Road/Forge Lane.

F D Attwood & Partners 19/500765/OUT 6.6

Scarbutts And Winsor Works London Road Addington West Malling

Kent ME19 5AN

Redevelopment of the site to provide 10 x detached dwelling houses with associated parking, turning, landscaping and

improvements to the access roadColdrum Homes Ltd 19/01067/FL 6.9



64

Reg 3 Applications

MA/19/503387 - Determined in Oct 2019 Maplesden Noakes School. Large expansion development (3-story teaching block of

classes, dining hall etc),

MA/19/502955 – Determined Oct 2019 Maidstone Grammar School – New Sports Development, hall, showers, classroom etc,

Land Adjacent To Balancing Pond St Andrews Park Halling KentConstruction of an extra care facility comprising of fifty 1-bedroom and forty five 2-bedroom apartments with communal facilities

including restaurant, offices and a separate retail unit (Class A1) with associated landscaping, access, parking and infrastructureNot provided - DHA Planning MC/19/0994 7.5

Land Adjacent To 8 Wiltshire Close & 1-11 Somerset Close Princes Park

Chatham ME5 7SR

Construction of 10 flats arranged over two, part 2 and part 3 storey buildings, reconfiguration of existing parking spaces along

Wiltshire Close and new planting margin to existing parking spaces along Somerset Close.Mr Michael Bull MC/19/1866 8.3

White Heath Ashford Road Hollingbourne ME17 1XG

Outline application for redevelopment of land to the west of White Heath, including demolition of existing buildings and erection

of new 3 storey building to form a care home (Use Class C2) for residents requiring nursing, dementia and residential care, with

new access, car parking, landscaped gardens and a separate refuse/recycling facility (Access, Appearance, Layout and Scale being

sought). Modified access to White Heath.

Berkley Care (Hollingbourne) Limited 19/502470/OUT 8.7

White Road Community Centre White Road Chatham Medway ME4

5UNDevelopment of existing open space to provide 20No. affordable dwellings, landscaping and associated car parking. Mr Lewis Small - Medway Development Company MC/18/2553 8.8

White Road Community Centre White Road Chatham Medway ME4

5UNDevelopment of existing open space to provide 20No. affordable dwellings, landscaping and associated car parking.

Mr Lewis Small - Medway Development CompanyMC/18/2553 8.9

13-17 Church Street Chatham Medway ME4 4BT

Outline application with some matters reserved (appearance and landscaping) for demolition of existing buildings and

construction of a part six/part seven storey building and a part four/part five-storey building to accommodate three retail units at

ground floor level and twenty-one residential flats on the upper levels

Mr Huseyin MC/18/2331 9.8

3 New Road Chatham Medway ME4 4QJConstruction of a 8no five storey terrace dwellings and 12no 4-storey terrace dwellings with access off The Paddock and parking

together with associated works Bull MC/19/0573 9.8

Chatham Waterfront Globe Lane Car Park Globe Lane Chatham Kent

ME4 4HA

Redevelopment of existing car park to provide 176 residential apartment, 1141m2 of commercial floor space (A3/A4/B1),

landscaping and assocaited parkingMedway Development Company Ltd MC/18/3659 10

Cambridge House 1 Cambridge Terrace Chatham Medway ME4 4RGConstruction of a 6 storey block of flats compromising of 11-two bedroom flats and 5-one bedroom flats - demolition of existing

office

Mr Matthewman - Trinity South Ltd MC/18/2749 10

Bardell Terrace Rochester Kent ME1 1NG

Residential - led mixed use development comprising 331 residential units, non-residential floor space comprising 1,894 sqm of

Class A1, A2, A3, A5 and D2 floorspace associated car parking (258 car parking spaces and 8 on street spaces) landscaping,

engineering works, highway works to the junction of Corporation Street and High Street and alterations to pedestrian crossing -

Including demolition of all buildings on site apart from the buildings East of Furrells Road fronting onto the High Street which is

proposed to be partially demolished

Not available MC/19/0038 10



65

Appendix 4 – Unconstrained Developments

Permitted Applications

GIS Ref. No. Project Name / Address Development Description Developer / Applicant Name Planning Ref and Approval DateDistance (from Allington site

boundary)Council Estimated kWh Consumption

1 Land South West Of, Oakapple Lane, Maidstone, Kent

Outline planning application with all matters reserved for the demolition of existing structures

and erection of up to 80 dwellings with associated works for access, parking, infrastructure,

open space and landscaping.

Mr & Mrs Sunnuck & Mrs Foster-

Crouch13/2079 (01 Dec 2015) 2.2 Maidstone 288,000

2Former Somerfield Distribution Centre, Station Road, Aylesford, Kent, ME20

7QR

Construction of 92 dwellings with associated parking, roads, landscaping and public open space

(Revised scheme to that approved under application TM/13/03109/FL)Challenger Text Ltd 17/03350/FL (21 Jan 2019) 0.98 Tonbridge & Malling 227,700

3J Dempson And Co Ltd Hermitage Mills Hermitage Lane Maidstone Kent

ME16 9NPErection of 3 no. buildings for storage (B8 Use Class). Dempson Ltd 17/505908/FULL (27 Mar 2018) 2.3 Maidstone 44,280

4 5 Tonbridge Road Maidstone Kent ME16 8RL

Outline application (All matters reserved) for redevelopment with up to 65 dwellings and

associated vehicular and pedestrian access, car and cycle parking, street and external lighting,

main services, bin stores and other ancillary development

Corbens Place Ltd 15/510179/OUT (22 Dec 2016) 2.9 Maidstone 255,870

5Areas 10, 11 And 15 Kings Hill Phase 3 Gibson Drive Kings Hill West Malling

Kent

Reserved Matters Application (access, appearance, landscaping, layout and scale) for Areas 10,

11 and 15 for the erection of 166 dwellings (including 112 affordable housing units) with

associated parking, access, open space and landscaping pursuant to Condition 1 and details

pursuant to Conditions 12 (highways), 19 (parking), 20 (levels), 23 (landscape strategy), 24

(landscaping scheme - partial discharge), 37 (foul drainage) and 38 (surface water drainage) of

Outline Planning Permission TM/13/01535/OAEA (Residential development for 635 dwellings

and associated community facilities) Outline permission not available to view online.

Clarion Housing Group 18/01609/RM (28 Jan 2019) 5.8 Tonbridge & Malling 782,393

6Harpwood Residential Home Seven Mile Lane Wrotham Heath Sevenoaks

Kent TN15 7RY

Demolition of existing care home building (use class C2) and erection of a replacement care

home (use class C2) with associated car parking, refuse and external landscaping Graham Land & Development Ltd 18/02137/FL ( 7 Jan 2019) 9.5 Tonbridge & Malling 1,347,840

Applications Under Determination (Submitted)

7 Land South Of London Road And East Of Hermitage Lane, Aylesford, Kent

Outline Application: The erection of up to 840 dwellings (including affordable homes) with

public open space, landscaping, sustainable drainage systems, land for a Primary School, doctors

surgery and for junction improvements at Hermitage Lane/A20 junction, and a link road

between Poppy Fields roundabout and Hermitage Lane. Vehicular accesses into the site from

Poppy Fields Roundabout and Hermitage Lane. All matters reserved with the exception of

means of access.

Gladman Developments and The

Trustees of Whitepost Field17/01595/OAEA 0.08 Tonbridge & Malling 3,024,000

8Land South West Of London Road And West Of Castor Park, Allington,

Maidstone, Kent

Outline Application: permission for layout, access and scale for a residential scheme of 106 units

comprising mix of 1, 2, 3 and 4 bedroom dwellings (including bungalows, houses and

apartments), associated access and infrastructure.

Clarendon Homes and Trustees of The

Andrew Cheale Estate19/00376/OAEA 0.14

Tonbridge & Malling /

Maidstone330,768

9Development Site South Of Brampton Field Between Bradbourne Lane And

Kiln Barn Road, Ditton, Aylesford, Kent

Outline Application: Development of the site to provide up to 300 dwellings (Use Class C3) and

provision of new access off Kiln Barn Road. All other matters reserved for future considerationEast Malling Trust 18/02966/OA 2 Tonbridge & Malling 1,080,000

10 Garden Centre Rear Of 400 Hermitage Lane Maidstone Kent ME16 9NT

Outline Application: Redevelopment of existing garden furniture retail centre (with ancillary

cafe) and commercial cattery and small pet boarding centre with 9 no. dwellings comprising 3

no. detached four bedroom houses and 6 no semidetached three bedroom houses with

associated alterations to existing access road, new garaging and parking facilities and surface

water run off pond

Mr & Mrs Warner 18/03048/OA 1.6 Tonbridge & Malling 194,400

11 Land At Springwood Road Barming Maidstone Kent ME16 9NYDemolition of existing development and erection of two staff accommodation blocks,

comprising 160 units, together with associated parking, drainage and landscaping.Springwood Holdings Ltd 19/503871/FULL 2.5 Maidstone 360,000

12Development Site East Of Clare Park Estate New Road East Malling West

Malling Kent

Outline Application: Development of the site to provide up to 110 dwellings (Use Class C3) and

the site access arrangement. All other matters reserved for future considerationEast Malling Trust 18/03008/OA 3.1 Tonbridge & Malling 297,000

13 Land East Of King Hill West Malling Kent

Outline Application: Demolition of existing dwellinghouse (Sportsmans' Bungalow, 124 Teston

Road) and outbuildings and erection of up to 120 dwellings including 40% affordable housing,

with public open space, a community orchard, landscaping and sustainable drainage system

(SuDS) and vehicular access point from King Hill. All matters reserved except for means of access

Gladman Developments Ltd 18/01013/OA 6 Tonbridge & Malling 432,000

14Scarbutts And Winsor Works London Road Addington West Malling Kent

ME19 5AN

Redevelopment of the site to provide 10 x detached dwelling houses with associated parking,

turning, landscaping and improvements to the access roadColdrum Homes Ltd 19/01067/FL 6.4 Tonbridge & Malling 48,245

Alder Hey ESCo

Briefing Paper

Page 66 of 71

Appendix 5 – Briefing Note

A District Heat Network

for Allington

Informative Document to Prospective Customers

Alder Hey ESCo

Briefing Paper

Page 67 of 71

The District Heat Network FCC Environment (UK) Ltd (FCC) are currently undertaking a feasibility study looking at the

possible installation of a DH Network in and around the Allington area, taking heat from the

existing and proposed extension to their current Energy from Waste (EfW) facility located in the

20/20 Business Park.

The heat delivered to Clarendon Homes using EfW is one of the best forms of low-carbon energy

available to the market, allowing developers to use more cost-effective building fabrics and also

provide customers with an estimated potential annual saving of between 5% and 10% over the

counterfactual provision on a holistic basis.

FCC are looking to operate a price promise to all heat customers who take heat from the district

heat scheme, ensuring that the customer will not pay any more for heat than if connected to their

‘business as usual’ traditional heating scheme. The Heat Contract terms and conditions are well

tested both in the public, third sector and private sector. Suitable performance related service

level agreements and open and transparent treatment on future prices exist that also provide

future best value market testing to ensure customers are getting the best deal for them.

It is recognised that the heat market at this moment in time is a non-regulated entity and therefore

considered a monopoly position. The open and transparent approach proposed by FCC provides

safeguards to the customer that in any event allows a termination event should prices prove to

be higher than what the customer would be achieving should they revert to their “traditional” fired

heating systems.

Proposed Timelines

FCC are currently in the planning process to develop a case for the EfW plant extension, and the

associated potential district heat network. Part of the DCO application requires the identification

of potential ‘heat-takers’ within a given radius of the Proposed Extension to enable an evaluation

of the opportunity that building the Proposed Extension can present to the local area. One of

which belongs to yourselves at Clarendon Homes.

Should the planning application be successful, FCC are looking to have the plant built, functioning,

and providing heat to customers around Summer 2024.

Benefits to Clarendon Homes

• Financial saving on heat purchased

• Carbon savings that can be reported against targets

• Ability for developers/businesses to use more cost-effective building fabric to meet Part L

requirements

• A commercial structure suited to Clarendon Home’s relationship with FCC

Alder Hey ESCo

Briefing Paper

Page 68 of 71

Wider Benefits to Allington

By providing low carbon, lower cost energy bills to businesses connecting to the heat network this

will encourage businesses to stay / move to this location instead of considering other low carbon

options around the UK. The carbon savings projected by this project will put Maidstone and the

surrounding areas on the map and be a beacon for Low Carbon and Sustainability – this is a great

inward investment opportunity.

FCC are in discussion with Local Councils and educational institutes who are interested in joining

the scheme and it is hoped that through this and discussions with local potential heat users such

as yourselves a wider network of developments will be encouraged to join / connect to the scheme

as they are seen to be a trusted brand in the area therefore enabling the scheme to grow.

As is common in the development of district heating systems here in the UK and in Europe, they

organically grow once the initial investment case has been approved and construction

commences.

What are the risks to the Scheme and therefore to the heat being provided?

The major risk to the scheme is planning permission for the extended Allington station being

refused, leading to the EfW extension not being built and as a result, no district heating network

being implemented.

Planning applications for schemes of this size and nature are lengthy processes made up of

numerous consultations, reports, models and studies, however FCC are aiming for a submission

of the planning application by September 2020, with a final decision aimed to be given around

April 2021.

We hope that a district heating scheme would be something of interest to yourselves at Clarendon

Homes and would like to discuss the opportunity further should this be the case.

Alder Hey ESCo

Briefing Paper

Page 69 of 71

Appendix 6 – KCC Meeting Minutes

(16th September 2019) Attendees:

Thad Dell (KCC)

David Molland (FCC)

Gillian Sinclair (FCC)

Steve Marsh (Ener-Vate)

Drew Walker (Ener-Vate)

Numerous Members from AECOM

Meeting:

Introductions were made before Ener-Vate presenting their findings and studies to date to the KCC

and AECOM members.

AECOM had some queries surrounding the IRR and NPV values presented by Ener-Vate’s

commercial model. Assumptions were explained to AECOM to provide clarity.

The presentation and FCC’s ambition were certainly well received by the whole table.

Some notes to be aware of from Thad’s / AECOM’s comments:

• Maidstone hospital currently has a CHP, and has done for some time, so may be up for

renewal sometime soon?

• KCC already have ‘spoken consent’ for both the KCC buildings and HMP Maidstone – all

lying across the River Medway from FCC’s facility.

Thad then presented KCC’s expectations for the WSHP heat network they are currently working

on.

Thad certainly liked the value that both projects could bring to Maidstone and expressed his intent

to look at the opportunity to propose a potential conjoined, large network.

This was well received by FCC; however, it was agreed that at the current time both parties should

continue their respective studies before looking at joining the two networks. This was mostly due

to the constraints between the networks – if they both work as standalone projects; however, it

should certainly be looked at.

The meeting ended following this with no specific actions. Both parties will continue with their

work and reconvene in the future.

Alder Hey ESCo

Briefing Paper

Page 70 of 71

Appendix 7 – KCC Meeting Minutes

(2nd April 2020) Attendees:

Thad Dell (KCC)

Steven Baggs (KCC)

David Molland (FCC)

Gillian Sinclair (FCC)

Steve Marsh (Ener-Vate)

Drew Walker (Ener-Vate)

The meeting took place via conference call due to Covid-19 restrictions.

Meeting:

Drew began the meeting with a presentation of all work to date with Steve M interjecting where

necessary to provide clarity surrounding design principles.

Part of the presentation included any work that has changed since the last meeting in 2019 –

most importantly the progression of a Heat Demand Investigation and consultation with

prospective customers.

Following this, Dave Molland asked if KCC had any contacts at NHS Maidstone that we could

engage with to discuss the hospital’s appetite for low-carbon energy.

Steven Baggs highlighted that both primary schools as well as most buildings at MidKent college

are not under their control, however they would seek to locate appropriate contacts.

Steven also mentioned HNIP support and that KCC are close to securing funding for work they

are currently undertaking surrounding the WSHP network.

It was then suggested that some of this money may be used by KCC along with FCC / Ener-Vate

to see if both networks could be conjoined.

Dave Molland mentioned that, as we are currently finalising a draft DCO application, it may not be

the best time to do so. However, it is something that will certainly be picked up once the DCO

application has been submitted and / or the current Covid-19 situation calms down.

Actions were for both parties to keep in touch regarding their respective work and discuss the

conjoined network as soon as is feasible. Also, Thad and Steven will send over any contacts that

FCC / Ener-Vate may find useful ASAP.

Alder Hey ESCo

Briefing Paper

Page 71 of 71

Appendix 8 – Consultation Record Date Contactor Recipient Format Summary of Contact Response

Clarendon Homes

03/03/2020 Ener-Vate Consultancy Ltd. Clarendon Homes & The Trustees of The Andrew

Cheale Estateemail

Briefing note sent to Clarendon Homes & The Trustees of

The Andrew Cheale Estate to inform them of the DH

Network scheme and discuss the opportunity

The Land and Planning Officer replied via phone call on

11/03/2020. He is interested to set up a meeting and discuss

the opportunity following a meeting with the Board of

Directors.

01/06/2020 Ener-Vate Consultancy Ltd. Clarendon Homes & The Trustees of The Andrew

Cheale Estate (Land and Planning Officer)email

Email sent to the Land and Planning Officer asking for an

update on their statusNo response?

Gladman Developments

03/03/2020 Ener-Vate Consultancy Ltd. Gladman Developments email

Briefing note sent to Gladman Developments to inform

them of the DH Network scheme and discuss the

opportunity

No response

01/06/2020 Ener-Vate Consultancy Ltd. Gladman Developments emailEmail sent to the Land and Planning Officer asking for an

update on their status

Gladman Developments replied on 01/06/2020 stating the the

development site will be sold to a housebuilder in the future,

and so the DH Network will be a proposal to be considered by

the new owners once sale has concluded. Gladman Homes did

not provide any timescales for the completion of the site

purchase

10/07/2019 FCC Kent County Council emailRequest to discuss the DH Network scheme with the

Sustainable Business and Communities Team

Numerous email exchanges resulted in The Energy Manager at

Kent County Council replying with a date to meet in Kent on

16/07/2019

16/09/2020FCC / Ener-Vate Consultancy

Ltd.Kent County Council Meeting

Request to discuss the DH Network scheme with the

Sustainable Business and Communities Team

FCC are to begin a preliminary Heat Study of the local area and

continue moving forward with Site plans. KCC interested in the

scheme.

03/02/2020 FCC Kent County Council Phone Call / email

Voicemail picked up by a KCC Renewable Energy

Consultant from FCC requesting another meeting to

discuss progress

A meeting was arranged for 03/03/2020. The meeting was

unfortunately cancelled, and ended up being arranged via

Microsoft Teams on 02/04/2020.

02/04/2020FCC / Ener-Vate Consultancy

Ltd.Kent County Council Online Meeting

FCC, Ener-Vate and KCC discussed progress regarding the

IWMF DH Network and KCC's WSHP DH Network based on

the River Medway

FCC received contacts for the NHS Trust via KCC and again

agreed to continue with their respective projects and

reconvene in the future.

02/12/2020 Ener-Vate Consultancy Ltd.The Director of Estates and Facilities at the Maidstone

& Tunbridge Wells NHS Trustemail

Email sent to request a discussion surrounding the IWMF

DH Network scheme

A reply stating the the NHS would be happy to discuss the

opportunity

03/12/2020 Ener-Vate Consultancy Ltd.The Director of Estates and Facilities at the Maidstone

& Tunbridge Wells NHS Trustemail

Email sent requesting whether Maidstone Hospital was

under a PFI contract No Response

Kent County Council

Maidstone & Tunbridge Wells NHS Trust



S2856-0300-0001VBT Page 41

B CBA inputs and key outputs

INPUTS Version Jan 2015

Scenario Choice (dropdown box) 1 Power generator (Heat Source) same fuel amount

Technical solution features

Heat carrying medium (hot water, steam or other) (dropdown box) Hot water Key Hot water Steam Other

Total length of supply pipework (kms) 0.1 2 Participant to define

Peak heat demand from Heat User(s) (MWth) 7.11

Annual quantity of heat supplied from the Heat Source(s) to Heat User(s) (MWh) Lines 49 & 79 2 Regulatory prescribed

DCF Model Parameters 2 Calculated

Discount rate (pre-tax pre-financing) (%) - 17% suggested rate 17%

Project lifespan (yrs) 30 2 Prescribed - but possibility to change if make a case

Exceptional shorter lifespan (yrs) 0

Cost and revenue streams

Construction costs and build up of operating costs and revenues during construction phase % operating

costs and

revenues

during

construction

phase

Heat Supply

Infrastructure

- used in

Scenarios 1,

2, 3 and 5

Heat Station -

used in

Scenarios 1, 2

and 3

Standby

boilers (only

if needed for

Scenarios 1, 2

and 3)

Industrial

CHP - used in

Scenario 4 *

Project asset lifespan (yrs) 30 30 30

Exceptional reason for shorter lifespan of Heat Supply Infrastructure, Standby Boiler and/ or Heat Station (yrs)

Construction length before system operational and at steady state (yrs) 3Number of years to build 1 3 0 0

% (ONLY IF

APPLICABLE)

£m £m £m £m

Year 1 costs (£m) and build up of operating costs and revenues (%) 0% 0.484766217

Year 2 costs (£m) and build up of operating costs and revenues (%) 0% 0.484766217Year 3 costs (£m) and build up of operating costs and revenues (%) 0% 0.129800321 0.484766217

Year 4 costs (£m) and build up of operating costs and revenues (%)

Year 5 costs (£m) and build up of operating costs and revenues (%)

Non-power related operations

OPEX for full steady state Heat Supply Infrastructure on price basis of first year of operations (partial or steady state) (£m)

OPEX for full steady state Heat Station on price basis of first year of operations (partial or steady state) (£m) 0.1OPEX for full steady state Standby Boilers on price basis of first year of operations (partial or steady state) (£m)

OPEX for full steady state Industrial CHP on price basis of first year of operations (partial or steady state) (£m) *

Additional equivalent OPEX to pay for a major Industrial CHP overall spread over the life of the asset (£m) on price basis of

first year of operations (partial or steady state) (£m) *

Other 1 - Participant to define (£m)

Other 2 - Participant to define (£m)

Total non-power related operations 0.1

Annual inflation for all non-power related OPEX from first year of operations (full or partial) (%) 2.0%

Unit Energy Prices, Energy Balance, Fuel Related Operational costs and Revenue Stream

1 2 3 4 5Scenario

used

Power

generator

(Heat Source)

same fuel

amount

Power

generator

(Heat Source)

same

electrical

output

Industrial

installation

(Heat Source)

- use waste

heat

Industrial

installation

(Heat Source)

- CHP set to

thermal input

District

heating (Heat

User)

Heat sale price (£/ MWh) at first year of operations (partial or full) 10.00 10.00

Annual quantity of heat supplied from the Heat Source(s) to Heat User(s) at steady state (MWh) 21,876 21,876

Equivalent heat sales if first year of operations is steady state (£ m) 0.2

Heat sale price inflation from first year of operations (full or partial) (% per year) 2.0% 2.0%

Percentage of heat supplied by Standby Boiler (if relevant) 5% 5%

'Lost' electricity sale price (£/ MWh) at first year of operations 57.00 57.00

Z-ratio (commonly in the range 3.5 - 8.5) 6.80 6.80

Power generation lost at steady state (MWh) 3,055 3,055

Equivalent 'lost' revenue from power generation if first year of operations is steady state (£ m) 0.17

Electricity sale price inflation from first year of operations (full or partial) (% per year) 2.0% 2.0%

Industrial CHP electricity sale price (£/ MWh) at first year of operations (full or partial) 0.00

Industrial CHP electrical generation in steady state (MWh) 0

Equivalent revenue from power generation if first year of operations is steady state (£ m) 0.00Industrial CHP electricity price inflation from first year of operations (full or partial) (% per year) 0.0%

Fuel price for larger power generator/ CHP at first year of operations (full or partial) (£ / MWh) 0.00

Z-ratio (commonly in the range 3.5 - 8.5) 0

Power efficiency in cogeneration mode (%) 0

Additional fuel required per year for larger power generator / CHP in steady state (MWh) 0 #DIV/0!

Equivalent additional fuel costs if first year of operations is steady state (£ m) 0.00

Fuel price inflation from first year of operations (full or partial) (% per year) 0.0%

Fuel price for Standby Boiler at first year of operations (£ / MWh) 0.00

Boiler efficiency of Standby Boiler (%) 80% 80% 80% 80%

Additional fuel required per year for Standby Boiler in steady state (MWh) 1,378 1,378 - -

Equivalent additional fuel costs if first year of operations is steady state (£m) -

Fuel price inflation for Standby Boiler from first year of operations (full or partial) (% per year) 2.00% 2.0%

Heat purchase price (£/ MWh) at first year of operations (partial or full) 0.00Annual quantity of heat supplied from the Heat Source(s) to Heat User(s) at steady state (MWh) 0Equivalent cost of heat purchased if first year of operations is steady state (£ m) 0.0

Heat purchase price inflation from first year of operations (full or partial) (% per year) 0.0%

Fuel price (£ / MWh) at first year of operations (partial or full) 0.00

Boiler efficiency of district heating plant 0% 80%

Fuel avoided per year in steady state (MWh) 0 -

Equivalent fuel savings if first year of operations is steady state (£m) 0.0

Fuel price inflation from first year of operations (full or partial) (% per year) 0.0% 4.0%

Fiscal benefits (£m) in first year of operations assuming it is at steady state ** 0.00 0.00

Fiscal benefits inflation rate from first year of opeations (full or partial) (%) ** 0.0%

* **

OUTPUTS#NUM!

-1.49

Operator only needs to enter a value for fiscal benefits (£m) and the annual fiscal benefit inflation rate (%) if the NPV without fiscal benefits is negative at the specified discount rate

In the case of Industrial CHP a separate model template is available for typical indicative CAPEX, non-power related OPEX, additional equivalent OPEX to pay for a major overall, MWh of electricity generated in the steady state and the additional fuel required.

Nominal NPV (before financing and tax) (£m) over 33 years

Nominal Project IRR (before financing and tax) over 33 years



S2856-0300-0001VBT Page 42

C CHP-R Assessment Form

# Description Units Notes / Instructions

Requirement 1: Plant, Plant location and Potential heat loads

1.1 Plant name Allington 4th Line

1.2 Plant description A description of the plant is provided in Sections 5.2 and 5.3 of this Report.

1.3 Plant location (Postcode / Grid Ref) The plant location is provided in Section 1.6.1 of this Report.

1.4 Factors influencing selection of plant location

The factors influencing site selection are provided in Section 5.1 of this Report.

1.5 Operation of plant

a) Proposed operational plant load % 100

b) Thermal input at proposed operational plant load

MW 98.96

c) Net electrical output at proposed operational plant load

MW 28.72

d) Net electrical efficiency at proposed operational plant load

% 29.02%

e) Maximum plant load % 100

f) Thermal input at maximum plant load

MW 98.96

g) Net electrical output at maximum plant load

MW 28.72

h) Net electrical efficiency at maximum plant load

% 29.02%

i) minimum stable plant load % 65%

j) Thermal input at minimum stable plant load

MW 64.32

k) Net electrical output at minimum stable plant load

MW 17.17

l) Net electrical efficiency at minimum stable plant load

% 26.69%

1.6 Identified potential heat loads



S2856-0300-0001VBT Page 43


Details of the identified heat loads are in Section 6.2. The wider Ener-Vate heat demand investigation can be found in Appendix A.

Following consumer screening, potential consumers were identified with an average heat load of 2.50 MWth for the proposed heat network.

The estimated heat use of the identified network is 21,876 MWh/year.

1.7 Selected heat load(s)

a) Category (e.g. industrial / district heating)

District heating

b) Maximum heat load extraction required

MW The average and peak heat loads are estimated to be 2.50 MWth and 8 MWth respectively.

1.8 Export and return requirements of heat load

a) Description of heat load extraction Network to supply hot water at typical district heating temperatures (approximately 100°C) via turbine steam extractions at approximately 2 bar(a).

b) Description of heat load profile The heat load profile is variable due to mixed use developments (primarily public-commercial and residential). A detailed heat load profile can be found in Section 6.3 of the CHP Assessment. The consumer heat load and profile is subject to verification.

c) Export pressure bar a 10

d) Export temperature °C 100

e) Export flow t/h 195.9 (nominal case)

f) Return pressure bar a 3

g) Return temperature °C 65

h) Return flow t/h 195.9 (nominal case)

Requirement 2: Identification of CHP Envelope

2 Comparative efficiency of a standalone boiler for supplying the heat load

% LHV 80% - updated in accordance with CHPQA Stakeholder Engagement Document, April 2016, Table 1.

2.1 Heat extraction at 100% plant load

a) Maximum heat load extraction at 100% plant load

MW 8.00



S2856-0300-0001VBT Page 44


b) Maximum heat extraction export flow at 100% plant load

t/h Assuming steam extraction at 2 bar(a), export flow rate would be:

7.2 t/h

c) CHP mode net electrical output at 100% plant load

MW 27.54

d) CHP mode net electrical efficiency at 100% plant load

% 27.83%

e) CHP mode net CHP efficiency at 100% plant load

% 35.92%

f) Reduction in primary energy usage for CHP mode at 100% plant load

% 24.44%

2.2 Heat extraction at minimum stable plant load

a) Maximum heat load extraction at minimum stable plant load

MW 3.76

b) Maximum heat extraction export flow at minimum stable plant load

t/h Assuming steam extraction at 2 bar(a), export flow rate would be:

3.38 t/h

c) CHP mode net electrical output at minimum stable plant load

MW 17.17

d) CHP mode net electrical efficiency at minimum stable plant load

% 26.69%

e) CHP mode net CHP efficiency at minimum stable plant load

% 32.54%

f) Reduction in primary energy usage for CHP mode at minimum stable plant load

% 23.59%

2.3 Can the plant supply the selected identified potential heat load (i.e.is the identified potential heat load within the ‘CHP envelope’)?

Yes, but not deemed 'Good Quality' CHP as discussed in Section 8.2 of this report.

Requirement 3: Operation of the Plant with the Selected Identified Heat Load

3.1 Proposed operation of plant with CHP

a) CHP mode net electrical output at proposed operational plant load

MW 28.35

b) CHP mode net electrical efficiency at proposed operational plant load

% 28.65%

c) CHP mode net CHP efficiency at proposed operational plant load

% 31.17%



S2856-0300-0001VBT Page 45


d) Reduction in net electrical output for CHP mode at proposed operational plant load

MW 0.37

e) Reduction in net electrical efficiency for CHP mode at proposed operational plant load

% 0.37%

f) Reduction in primary energy usage for CHP mode at proposed operational plant load

% 22.28%

g) Z ratio 6.80

Requirement 4: Technical provisions and space requirements

4.1 Description of likely suitable extraction points

Steam for the DH network could be supplied via a controlled steam flow extraction from low pressure turbine bleed at approximately 2 bar(a). Full details are provided in Section 5.4 of the CHP Assessment.

4.2 Description of potential options which could be incorporated in the plant, should a CHP opportunity be realised outside the 'CHP envelope'

The CHP opportunity lies within the CHP envelope.

4.3 Description of how the future costs and burdens associated with supplying the identified heat load / potential CHP opportunity have been minimised through the implementation of an appropriate CHP-R design

Space has been allocated on site for a separate CHP Building to house heat station infrastructure if the Scheme were to be implemented. The turbine design will be selected to maximise electrical efficiency while allowing for the option of heat export to be implemented in the future. This is in line with the EA CHP-Ready Guidance which states that the initial electrical efficiency of a CHP-R plant (before any opportunities for the supply of heat are realised) should be no less than that of the equivalent non-CHP-R plant.

4.4 Provision of site layout of the plant, indicating available space which could be made available for CHP-R

Detailed design of the Facility has not been undertaken at this stage. However, space has been allocated on-site in a dedicated building to the northeast of the turbine hall for heat export infrastructure. Please see the site layout in or Figure 5.4 of the PEIR. The DH network will (likely) include steam extraction piping, control and shutoff valves, heat exchangers, district heating supply and return lines, district heating circulation pumps, condensate return piping (to the condensate tank), control and instrumentation / electrical



S2856-0300-0001VBT Page 46


connections, an expansion tank for pressurisation of the DH pipe network and heat metering.

Requirement 5: Integration of CHP and carbon capture

5.1 Is the plant required to be CCR? No

5.2 Export and return requirements identified for carbon capture

100% plant load

a) Heat load extraction for carbon capture at 100% plant load

MW N/A

b) Description of heat export (e.g. steam / hot water)

N/A

c) Export pressure bar a N/A

d) Export temperature °C N/A

e) Export flow t/h N/A

f) Return pressure bar a N/A

g) Return temperature °C N/A

h) Return flow t/h N/A

i) Likely suitable extraction points N/A

Minimum stable plant load

j) Heat load extraction for carbon capture at minimum stable plant load

MW N/A

k) Description of heat export (e.g. steam / hot water)

N/A

l) Export pressure bar a N/A

m) Export temperature °C N/A

n) Export flow t/h N/A

o) Return pressure bar a N/A

p) Return temperature °C N/A

q) Return flow t/h N/A

r) Likely suitable extraction points N/A

5.3 Operation of plant with carbon capture (without CHP)

a) Maximum plant load with carbon capture

% N/A

b) Carbon capture mode thermal input at maximum plant load

MW N/A



S2856-0300-0001VBT Page 47


c) Carbon capture mode net electrical output at maximum plant load

MW N/A

d) Carbon capture mode net electrical efficiency at maximum plant load

% N/A

e) Minimum stable plant load with CCS % N/A

f) Carbon capture mode CCS thermal input at minimum stable plant load

MW N/A

g) Carbon capture mode net electrical output at minimum stable plant load

MW N/A

h) Carbon capture mode net electrical efficiency at minimum stable plant load

% N/A

5.4 Heat extraction for CHP at 100% plant load with carbon capture

a) Maximum heat load extraction at 100% plant load with carbon capture

MW N/A

b) Maximum heat extraction export flow at 100% plant load with carbon capture

t/h N/A

c) Carbon capture and CHP mode net electrical output at 100% plant load

MW N/A

d) Carbon capture and CHP mode net electrical efficiency at 100% plant load

% N/A

e) Carbon capture and CHP mode net CHP efficiency at 100% plant load

% N/A

f) Reduction in primary energy usage for carbon capture and CHP mode at 100% plant load

% N/A

5.5 Heat extraction at minimum stable plant load with carbon capture

a) Maximum heat load extraction at minimum stable plant load with carbon capture

MW N/A

b) Maximum heat extraction export flow at minimum stable plant load with carbon capture

t/h N/A



S2856-0300-0001VBT Page 48


c) Carbon capture and CHP mode net electrical output at minimum stable plant load

MW N/A

d) Carbon capture and CHP mode net electrical efficiency at minimum stable plant load

% N/A

e) Carbon capture and CHP mode net CHP efficiency at minimum stable plant load

% N/A

f) reduction in primary energy usage for carbon capture and CHP mode at minimum stable plant load

% N/A

5.6 Can the plant with carbon capture supply the selected identified potential heat load (i.e. is the identified potential heat load within the ‘CHP and carbon capture envelope’)?

N/A

5.7 Description of potential options which could be incorporated in the plant for useful integration of any realised CHP system and carbon capture system

N/A

Requirement 6: Economics of CHP-R

6.1 Economic assessment of CHP-Ready In order to assess the economic feasibility of the CHP scheme (as required under Article 14 of the Energy Efficiency Directive) a cost benefit assessment has been carried out in accordance with the draft Article 14 guidance. Key parameters and outputs of the full assessment can be found in Appendix B. The results of the CBA indicate negative internal rates of return and net present value, i.e. the proposed DH network will not yield an economically viable scheme in its current configuration. The economic feasibility of the Scheme will be reassessed in the future when there is a better understanding of heat demands

BAT assessment

Is the new plant a CHP plant at the outset (i.e. are there economically viable CHP opportunities at the outset)?

No



S2856-0300-0001VBT Page 49


If not, is the new plant a CHP-R plant at the outset?

Yes

Once the new plant is CHP-R, is it BAT?

Yes



S2856-0300-0001VBT Page 50

Kingsgate (Floor 3), Wellington Road North, Stockport, Cheshire, SK4 1LW,

United Kingdom

t: +44 (0)161 476 0032 f: +44 (0)161 474 0618

www.fichtner.co.uk

Documents

2Allington 4th Line Extension · 16 July 2020 CHP Assessment S2856-0300-0001VBT Page 3 Management Summary FCC Environment (UK) Ltd (abbreviated to FCC and referred to as the Applicant