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Bedminster Green Energy CentreThe Site, Project Partners and Team
The Site
Low Carbon LtdLow Carbon is an investment company committed to making a positive and significant impact on the causes of climate change through investment in low carbon energy technology. Investing in Combined Heat and Power is a key element in the company’s low carbon energy strategy.
South Bristol EnergySouth Bristol Energy is the developer and operator of the Bedminster Energy Network and is owned by Low Carbon Limited. SBE solutions use proven technology and supporting systems and focus on providing lower cost, highly secure, low carbon heat and power to connected dwellings.
Design And EnvironmentThe project team includes the following professional inputs:
Nash Partnership – planning and design
Hydrock – acoustics, air quality, flood risk, ground conditions
Tim Pursey –Trees
Seasons Ecology – Ecology
The site for the proposed energy centre is on Clarke Street, in a predominantly industrial and warehousing area next to the NCP car park on Dalby Avenue.
ENER-GA specialist developer of low carbon energy installations, ENER-G has over 30 years’ experience in Combined Heat and Power (CHP) projects. Currently, for example, ENER-G is building a CHP energy centre as a part of a major mixed-use development in Cambridge.
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ALWAYS REFER TO FIGURED DIMENSIONS.
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8 - 10 Whiteladies Road
Bristol
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Bedminster Green - EnergyCentre
South Bristol Energy
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Stage 2 - Concept Design
A Design development RG 13.09.16
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Bedminster Green Energy CentreThe Energy Centre Concept
There is a consensus amongst the majority of climate scientists that human activity is a major contributor to global warming which, if unchecked, poses a major threat to humanity.
The December 2015 Paris Agreement commits 195 countries to limit global warming to well below 2° above pre-industrial levels.
Bristol City Council Policy requires site-wide energy infrastructure where possible, with provision on a building by building basis a last resort. Where
connection to existing Combined Heat and Power (CHP) or Combined Cooling Heat and Power (CCHP) is not possible, provision of new CHP/CCHP is the preferred approach.
For Bedminster Green a CHP gas-fired energy centre is proposed. This is able to use natural gas and, as available supply increases, bio-gas.
The energy centre will generate both electricity and heat supply. Heat that is not required immediately will be stored and distributed when needed.
The proposed energy centre is extremely efficient at converting gas into heat and power, with a reduction in CO2 of around 30% compared to conventional sources. It will provide one facility to supply heat and power to multiple buildings within a regeneration area known as Bedminster Green.
Bedminster Green Energy Network
Energy Centre Location
Core Network Connections
Potential Network Connections
Future Expansion Network Partners
Current Network Partners
Development Number of Dwellings Developer/Owner
Total 1243
Prospective Future Partners
Plot 1 & 4a, Swimming Pool, Robinsons Building
TBC Various
Plot 5
Regents and consort
St Catharines Place
Plot 003b (NCP Car Park)
Northfield House
Polden House
Holroyd House
Windmill Hill City Farm
436
254
188
100
150
57
58
N/A
Urbis
City and Country
Ashdown
Sydney Freed Holdings
BCC
BCC
BCC
Charity
Northfield House
Regents and Consort
Windmill Hill City Farm
St Catharines Place
Plot 003b
Plot 5
Polden House
Holroyd House
Plot 1
Plot 4a
Swimming Pool
Robinsons Building
Bedminster Green Energy CentreAppearance
Energy centres can be functional in appearance or as in the examples below, designed to sit within mixed residential environments.
For Bedminster Green, key design considerations in terms of appearance are:
� The potential for significant change in its surround-ings through contemporary mixed-use development
� Its role in setting a standard in design quality and as a symbol of a forward looking and proud community.
� Key views, for example towards the terraces of houses on Windmill Hill
� Creating a high-quality pedestrian and cycle route on the line of Clarke Street.
Bath Riverside
Bath Riverside
North West Cambridge ©North West Cambridge Lot 1 – Design and Access Statement
NORTH WEST Cambridge Lot 1 Design and Access Statement 75
Distinctive Cambridge Chimneys to Trinity Lane and Technology Museum A restrained design approach is proposed, following a history of elegant chimney design such as the Tate Modern
The height of the chimney is considered as a positive attribute to the design to provide a distinctive, visible element to the Energy Centre that can provide a strong identity to the scheme. It also maintains an appropriate proportion to the chimney. The design of the chimney has been carefully considered and is proposed as a restrained, elegant proposal that will sit along side a tradition of distinctive Cambridge chimney architecture. The restrained design approach looks to incorporate a brick structure with elegant extruded aluminium fins to the sides and flush panelling to a the front and rear to create the feature chimney top. Set alongside the context of the stepped west duplex town houses the height compliments the terrace with it’s mill town street feel.
Proposed Energy Centre Contextual: Street View
Bunhill, London
Bunhill, London
Liverpool
Liverpool©GoogleEarth ©Clarke Energy
©GoogleEarth ©GoogleEarth ©Wikimedia Commons
Bedminster Green Energy CentreAppearance
The design of the energy centre is at an early stage. Initial concept options to respond to the key design considerations have been developed.
This is the preferred option, to be worked up in more detail.
This option is considered to provide the basis for a distinctive building with a sculptural form and textured façade arranged in a series of changing vertical shapes. Elements of permeability will be considered to allow
views to the internal workings of the energy centre. Carefully placed lighting will be used to highlight the building’s shape and form at night.
The flue is proposed as a simple vertical element comprising four to six smaller flues joined together to again provide texture and definition.
Bedminster Green Energy CentreEnvironment
The principal environmental issues that need to be considered and inform the design of the energy centre are air quality and noise. Consideration also needs to be given to flood risk, trees, ecology and transport.
By way of comparison, the energy centre currently under construction by ENER-G in Cambridge, which is broadly comparable to the proposal for Bedminster
Green, has been assessed as having an imperceptible effect on average nitrogen dioxide concentrations.
The proposed energy centre will use advanced and highly efficient technology, including large catalytic converters to control emissions.
Output from the energy centre will exit the flue at approximately 20m per second (66ft per second / 40mph). The flue is anticipated to be around
31m (101ft) high and the site itself is about 8m above sea level. The diagram below illustrates this in very broad terms, in relation to the surrounding area.
Bristol has an air quality management area covering the central part of the city, including the Bedminster Green area, and extending along the main roads into and out of the centre. The main source of pollution is vehicular traffic.
In the Bedminster Green area, existing and future homes and other buildings create a need for heat and power. A key objective is therefore to supply localised energy, as required by policy, in a manner that minimises emissions overall. Unlike some alternatives,
such as biomass, particulate emissions from the proposed energy centre will be low to negligible.
A full air quality assessment is currently being prepared and pending this indicative data is shown in the table below.
Air Quality
Notes
*Denotes emissions from electricity production which occur elsewhere in the country
Indicative data based on average energy consumption for an average-size apartment.
PM10 is particulate matter 10 micrometres or less in diameter. (1000 micrometres = 1 millimetre)
PM2.5 is particulate matter 2.5 micrometres or less in diameter. (1000 micrometres = 1 millimetre)
Note: indicative diagram
average wind speed 4m/13ft per sec (9mph)
20m / 66ft per second(45mph)
0100m 100m 300m
8m
20m
40m
60m
80m
30m
50m
70m
90m
100m
26ft
50ft
100ft
150ft
200ft
250ft
300ft
200m
1 2 3
Development
Existing / with planning permissionExisting and
ProposedAlternative Individual Site
SupplyEnergy Centre % Reduction between
Columns 2 and 3
Dwellings
kg/Annum
Dwellings
kg/Annum kg/Annum
Particulates NOx Particulates NOx Particulates NOx Particulates NOx
PM10 PM2.5 PM10 PM2.5 PM10 PM2.5 PM10 PM2.5
Plot 5 436 3604 3091 3046 41 41 1044 98.86 98.67 65.73
Regent & Con 254 32 32 1371 254 32 32 1371 24 24 608 25.00 25.00 55.65
St Catherines 188 3084 2642 1612 188 3084 2642 1612 18 18 450 99.42 99.32 72.08
Plot 3 100 827 709 699 9 9 239 98.91 98.73 65.81
Northfield House 150 164 134 983 150 164 134 983 14 14 359 91.46 89.55 63.48
Polden House 57 62 51 374 57 62 51 374 5 5 137 91.94 90.20 63.37
Holroyd House 58 64 52 380 58 64 52 380 5 5 139 92.19 90.38 63.42
City Farm n/a tbc tbc tbc tbc tbc tbc tbc tbc tbc - - -
Totals 807 3406 2911 4720 1243 7837 6711 8464 117 117 2977 98.5 98.25 64.82
Gas BoilerEnergy Centre50% Gas, 50% Biomass BiomassGrid Electricity*
Bedminster Green Energy CentreEnvironment
The measurement of sound or noise is expressed in terms of decibels. Typically, with regard to industrial and environmental noise, an A-Weighting is applied to measurements in order to determine the perceived loudness of the noise to mimic human hearing.
A full noise assessment is being prepared, in accordance with local and national guidelines, to measure the
existing background noise levels in the area during both day and night time periods prior to the development.
To comply with established requirements, noise emitted by the energy centre will have to be below the typical background noise level at all surrounding noise sensitive properties.
The energy centre will incorporate a very high level of noise reduction. Equipment within the building will be housed in specially designed acoustic enclosures, further sound insulation will be provided by the external walls, roof and robust external cladding.
The anticipated noise level from the energy centre is likely to be between 30dBA and around 40dBA.
Flood RiskThe majority of the site has a medium probability risk of flooding (between 1:100 and 1:1000 annually) from the Malago River, with a small part at the northern end having a high probability (1:100 or greater probability annually).
A full flood risk assessment is being undertaken and this will inform the design process to ensure a fully flood resistant and resilient building. There will be no staff permanently based at the site.
TreesA tree survey has been undertaken and this is being used to ensure the development protects the adjoining trees at the edge of Windmill Hill City Farm, close to the site boundary.
EcologyThe site is largely hard-surfaced and of low ecological value. However, an ecology survey is being undertaken and this will advise on any potential for biodiversity enhancement.
TransportThe only trips generated will be a visit by a service vehicle around once a month.
0 dBA
10 dBA
20 dBA
30 dBA
40 dBA
50 dBA
60 dBA
70 dBA
zzzzz
Quiet Bedroom at Night30 dBA
Energy Centre35 dBA
Library40 dBA
Speech at distance of 1m60 dBA
Noise
The illustration above is indicative. Noise emissions will need to be suitably attenuated to a level at least 5 dBA below the existing typical background level at any residential property potentially affected, to help ensure the energy centre is inaudible. A full noise impact assessment
is being conducted in line with the requirements of Bristol City Council and the relevant British Standards and World Health Organisation guidelines. The detailed design will then control noise to ensure no noise nuisance for existing and future residents.
Bedminster Green Energy CentreCommunity Investment And Wider Benefit
Charity And Not For Profit
Future ExpansionSouth Bristol Energy are in detailed talks about connecting to the Bristol Energy Network (currently terminating at the Arena site) and in doing so would align with Bristol City Council’s aim for a carbon free city by 2050.
BedminsterGreenEnergyCentre
LocalHomes
BristolEnergyTrust
Efficient B
oilers Insulation Double Glazing
Bristol Energy Network South Bristol
Energy
An annual fund will be established for investment in energy conservation and efficiency measures for local homes in order to help reduce household bills. It is expected that this fund will enable improvements to around 20 homes per year. This will be managed by an energy trust. Bristol Energy Network has been asked to sit on the board of this trust to help administer and distribute the fund.
Talks are underway around connecting the energy centre to Windmill Hill City farm, to provide this community facility with all its hot water and electricity to significantly reduce running costs.
Bedminster Green Energy Centre will be a member of the Heat Trust, run by Heat Customer Protection Ltd, a not for profit company. It sets out a common standard for the quality and level of services and protection and support services for customers receiving supplies from the energy centre.
Bedminster Green Energy CentreNext Steps
Following this consultation, the material on display will be available for viewing at
Windmill Hill City Farm, in the reception area, from 3 -7 July and at www.nashpartnership.com
We will then consider all comments made in developing the energy centre proposal in more detail, alongside completion of the various technical studies.
Our anticipated timeline is:
Thank you for attending this consultation event.
Your comments can be placed in the boxes provided at this event or sent to:
Nash Partnership
25 King Street
Bristol BS1 4PB
Consultation Planning Application Planning Permission Start Construction Energy Centre Complete
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