1/20

ea technology

MicroCHeaP: Month 24 meeting AthensWork Package 4 presentation 21 September 2006Presented by Yvonne Dickson

Partners in power asset management

2/20

MicroCHeaP WP4

Presentation Title:

Micro-CHP in an electricity network

Presentation Summary:

EA Technology company structure STP Module 5 programme of projects

Distributed Generation (includes micro-CHP) Module 5 scope & objectives

Module 5 projects in September 2006 Publication of project results

3/20

Company Structure

EA TECHNOLOGY

Consultancy ProductsTechnical Services

4/20

Software Solutions

Network Asset Management

Technology Forums

New Energy Technologies

Strategic Asset Management

Strategic Technology Programme

CONSULTANCY

5/20

6/20

Distributed Generation

Module

Strategic Technology Programme

STP Module 5 =

The Strategic Technology Programme (STP) provides research, development and technology to Electricity Distribution Network Operators (DNOs) in the UK and Ireland

7/20

• All generation connected to an electricity distribution network (up to 132kV) potentially selling surplus electricity back into the network, including:– Small-scale plant that supplies electricity to a building,

industrial site or community– Microgeneration, ie small installations of solar panels, wind

turbines or biomass/waste burners that supply one building or small community

• Combined Heat and Power (CHP) plant, including:– Building or community level CHP plant– Micro-CHP plant that effectively replaces domestic boilers,

generating both electricity and heat for the home

What is “Distributed Generation”?

8/20

Growth in UK electricity generation from renewable sources [DTI June 2006]

9/20

Distributed Generation

SecuritySecurity

ReliabilityReliability

CapacityCapacity

OperationOperation

MaintenanceMaintenance

DesignDesign

StabilityStability

ReinforcementReinforcement

Island ModeIsland Mode

Active ManagementActive Management

New Network Design ConceptsNew Network Design Concepts

Ancillary ServicesAncillary Services

400/275kV

11kV

11kV 6.6kV

400V400V

PPoowweerr

PPoowweerr

PPoowweerr

PPoowweerr

10/20

STP Module 5Distributed Generation

2006/07 MEMBER COMPANIES

CE ElectricCentral Networks

EDF EnergyElectricity Supply Board Networks

Manx Electricity AuthorityScottishPower

Scottish & Southern ElectricityUnited Utilities

Co-ordinator: EA Technology

11/20

Module 5 - Distributed GenerationKey issues

FaultLevel

Stability

Protection

Metering

Quality ofSupply

Security ofSupply

Voltage Control

Earthing

12/20

STP Module 5

Distributed Generation

↓

Networks for Distributed Energy Resources

FUNDED BY MEMBER COMPANIES

MODULE STARTED IN YEAR: 1997/08

BUDGET FOR THE YEAR 2006/07: €400000

Co-ordinator: EA Technology

13/20

Module 5 – 2006/07Module Title“Networks for Distributed Energy Resources”

Addition to Module ScopeMoving to lower carbon network designs and the

development and operation of distributed resources, the following are within scope:

• Network design, distributed generation, demand-side management, storage and active network management

• Implications for distribution networks of the Government’s low-carbon strategy

Approved in January 2006

14/20

Module 5 Objectives1. To facilitate increased understanding between all

participants on technical and commercial and regulatory issues and develop effective solutions to these issues

2. To ensure that all participants optimise network design, financial and operational performance as the levels of storage, managed-demand and distributed generation increase on the distribution networks

3. To maximise the opportunities to the module participants arising from active network management and low-carbon networks, with regard to network reinforcement and network security

4. To reduce the costs associated with network connection

15/20

Module 5 project stages running in September 2006

DG = Distributed generationDNO = Distribution Network Operator

Module 5 Project Title Apri May Jun Jul Aug Sep Oct Nov Dec Jan Feb Mar

S5142-2 Generator data and structure for DG connection Yvonne

S5147-4 Microgenerator clusters Andy

S5149-4 Active voltage control Andy

S5152-2 Latest developments in the connection of DG Yvonne

S5161-1 Risk assessment approach to DNO protection Gary

S5162-1 Risk assessment analysis of voltage step changes Mary

S5164-1 Managing electricity distribution network risks Andy

S5158-1 Module 5 co-ordination Yvonne

Planned dates for large multi-stage projects:

S5147 “Microgenerator clusters” Feb 2006 - April 2008

S5149 “Active voltage control” Jan 2006 - July 2008

16/20

S5147 Micro-generator Clusters• S5140 Domestic Combined Heat & Power Potential (Sep2004)

concluded that short term impact of dCHP on a national scale will be small - but clusters of dCHP units (e.g. a whole new build housing estate) could have significant impact locally (e.g. networks coping with new situations such as reverse power flow)

• Lovell Homes are building ~500 homes on a brown field site in Manchester. All houses will have 1kW WhisperGen CHP units supplied by Powergen

• S5147 is a more complete study of the effects of dCHP clusters on load and voltage profiles providing real measured data for low voltage network design with microgeneration - to be written into a nationalEngineering Recommendation

17/20

WhisperGen in the home

WhisperGen

microCHPunit

GRID ELECTRICITYIMPORT / EXPORT

GAS100%

EXHAUST10%

GENERATION10 %

HEAT80 %

18/20

S5149 Active Voltage Control

The objectives of the project are:• To understand the technical and

commercial advantages and disadvantages of voltage control equipment when connecting different types of DG

• To understand how different types of DG and AVRs can aid voltage profile on an electricity distribution network

DG = Distributed Generation

AVR = Automatic Voltage Regulator

19/20

S5149 Active Voltage Control• Stage 2 Interim report delivered November 2005 • Stage 3 Review workshop held December 2005• Stage 4 Desktop studies of real case studies &

potential voltage control solutions – in progress

Stage 3 workshop

SimplifiedNetwork incorporating key issues.

Real case studies

Evaluation and comparison of different voltage control schemes on simplified network.

Comparison guide.

Trial of most appropriate schemes on real case studies

Recommendations for field trials

STAGE 4

20/20

21 > 24 MAY 2007 VIENNA AUSTRIA

Papers on both ongoing large projects are expected to be chosen for presentation/publication at the CIRED Conference (Session 4: Distributed Generation)

- S5147 “Microgenerator clusters” - S5149 “Active voltage control”