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Tag Archives: CHP
London Combined Heat and Power output falls
October 2011: DECC have just released their annual regional breakdown of Combined Heat and Power (CHP) statistics, providing further detail to the CHP chapter of DECC’s annual Digest of UK Energy Statistics, published in July of this year.
The statistics for London released indicate that:
- 188 Good Quality CHP schemes were operational in London as at the end of 2010
- These schemes amount to a total electrical capacity of 185 MWe and total thermal capacity of 372MWth
- They produced a total of 631GWh electricity and 1,680GWh heat – a total of 2,311 GWh energy
- Unlike many other regions, London does not have many large-scale industrial CHP schemes, which have typically long operational hours. Hence the overall load factor of London CHP schemes is low – the second lowest in the UK – at only 39.8%
- Importantly, whilst there has been a marginal increase in the number of CHP schemes operating in London (3 more in 2010) overall CHP generation capacity in London has decreased from 200MWe in 2009 to 185MWe. This is in despite an increase in overall increase in UK CHP capacity by over 500MWe.
- Additionally, when compared to last year’s statistics, the output from CHP plant in the capital has also fallen. CHP data as at the end of 2009 shows that CHP output stood at 746 GWh electricity and 2,414 GWh heat – a total of 3,160GWh of energy (see last year’s DECC Energy Trends September 2010 for details). Hence, as compared to the statistics just released, CHP energy output has dropped a significant 27% in the capital over one year. It’s difficult to determine exactly what is happening here without access to more detailed data for London from DECC – especially in relation to those schemes which may have retired.
- Note: there is a minor error in the latest Energy Trends article. Tables 5 & 6 suggest that 200MW CHP is operating in 2010. However, the report’s authors have clarified to energy for london that the correct capacity is 185 MWe and that:
- in Table 5 of the article, CCGT+GTs+STs should be 80 MWe and NOT 95 MWe. This will make the total for London 185 MWe, and consistent with Tables 1+2
- in Table 6 the London figure under the ’10 MWe and greater’ column should be 66 MWe and NOT 81MWe. This again will make the total for London 185 MWe, and consistent with Tables 1+2
Posted in Data Store, Decentralised Energy, News
Tagged CHP, Data, DECC, Decentralised Energy
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Hospital Heat and Power at Guy’s and St. Thomas’
September 2011: Guy’s and St. Thomas’ NHS Foundation Trust have hosted a tour of their two Combined Heat and Power (CHP) plants which have, since their commissioning in 2009, helped the Trust reduce CO2 emissions at the hospitals by a total of almost 11,300 tons per year and save more than £1.5 million in energy costs annually. Further information is detailed on the following news release.
Decentralised Energy powering Westfield
September 2011: Though there was a lot of coverage on the launch of the new Stratford Westfield shopping centre, there was little mention of the new high efficiency decentralised energy system installed providing the heat and power onsite. The press material released by Westfield states that 75% of all Stratford City’s electrical power will be met through an on-site Combined Cooling, Heat and Power Plant (CCHP). It goes on to say that the building was designed with a number of energy efficiency measures including the “use of natural light, effective insulation, high efficiency lighting, heating and cooling and control of solar gain will ensure the buildings are at least 10% more energy efficient than required by Building Regulations”.
The press release states that “efficient building design and on-site CCHP will help achieve carbon reduction targets of 50% by 2020” – which needs to be further clarified (ie which carbon reduction targets, and 50% of what baseline?).
Some further useful information and graphics are provided in the following Marks and Spencers presentation which highlights that:
- the Westfield M&S is 30% more energy efficient than other M&S stores
- the store achieves a 44% improvement on heating/cooling operational carbon efficiency by using CCHP
- 99.5% of cooling is delivered through the on-site CCHP; and
- a 100% per cent of heating from the on-site CCHP
Camden Using DE to tackle Fuel Poverty
September 2011: Further detail from, energy services company MITIE, on the innovative Combined Heat and Power (CHP) scheme being installed at the Royal Free Hospital in Hampstead, where “surplus heat from the hospital plant will be piped to a new energy centre in the Gospel Oak area of Camden to provide hot water and heat to residents. As a result, up to 1,500 council home tenants will benefit from the Council’s ability to procure energy at a much cheaper rate than would otherwise be available to the council commercially.” See earlier stories on this project here, here and here.
Connecting Decentralised Energy to London’s Electricity Network
September 2011: Back in May Ofgem issued an ‘open letter’ requesting views from the distributed generation (also commonly called decentralised generation) industry of their experience of connecting projects to the local electricity network. Ofgem’s letter sets out that they:
“consider that the efficient development of distributed generation could play an important role in addressing a number of key policy issues. These include helping the UK to achieve its targets for reduced carbon emissions as well as improving the security of energy supply and addressing fuel poverty issues. To this end, we have endeavoured to ensure that those seeking to connect distributed generation to the network do not encounter any unnecessary barriers resulting from the way that the electricity distribution networks are operated and regulated.”
The increased use of decentralised energy is a key element of London’s energy strategy, and the Mayor has established a target for 25% of London’s heat and power to be sourced by localised DE schemes by 2025.
Ofgem have now published a useful ‘High Level Summary’ of responses which highlights the difficulities that DE operators experience when bringing forward a project. This includes the:
- Limited and inconsistent distribution network data available to generators
- Costly processes ranging from connection assessments to legal fees
- Prohibitively complex grid code requirements placed on these smaller distributed generation systems.
No regional aspects are highlighted in the findings – that is – is it any harder/easier to connect DE to London’s electricity distribution system (operated by UK Power Networks in the main and also SSE in SW London) than anywhere else, however, if London is to significantly increase its use of DE, the numerous barriers identified by smaller generators that currently exist need to be removed.
Posted in Decentralised Energy, Library, News
Tagged CHP, Decentralised Energy, Distribution, Ofgem, UK Power Networks
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PwC considers ‘negawatt’ trial
17 August 2011: Business Green article on how PricewaterhouseCoopers (PWC) is considering taking part in UK Power Network’s Low Carbon London demand reduction project through managing the output of its onsite biofuel CHP system at their HQ near Tower Bridge.
Energy Minister Visits Olympic Energy Centre
August 2011: Energy Minister Charles Hendry visited the Olympic Park and the park’s Energy Centre which provides power to the main venues in park. The Energy Centre uses both biomass and a natural gas powered Combined Cooling Heat & Power (CCHP) which is 30 percent more efficient than traditional power generation methods. The CCHP system is designed to allow for future increases in capacity – to a maximum load of 120 MW heating, 25 MW cooling and 17 MW of low carbon electricity – enough to power 100,000 homes.
Green light for new Essex power station
4 August 2011: Energy Minister Charles Hendry has given the go-ahead today for InterGen’s proposals to construct a new 900MW gas power plant at the London Gateway Logistics Park, Coryton, Essex. The plans are for a new £600 million power station comprising of up to two CCGT generating units, each around 450MW in capacity. Further information on the scheme is available on the Gateway Energy Centre website .
No mention is made in the Government’s press release about any requirements for the power station to operate in higher efficiency CHP-mode. As part of Intergen’s 2010 planning submission to the Government a CHP assessment was undertaken which stated that responses from nearby organisations to take heat from the power station “have been encouraging. For example, there is the potential to supply the London Gateway Development with heat in the form of hot water or steam for heating or refrigeration purposes. The project also has the potential to provide heat to organisations in the area such as the Petroplus owned Coryton Oil Refinery, the Ford Motor Company at Dunton and Basildon Hospital.”
The assessment continues that the “Gateway Energy Centre (GEC) will hold further discussions with local organisations, including government agencies, with the aim of establishing further interest e.g. in a community heating scheme. If achieved, the result of this would be to improve overall plant efficiency whilst also reducing energy consumption by the users of the heat. The design of GEC will incorporate features which, with suitable modifications, will allow for export of heat in the event that suitable users are identified.”
Olympian effort made to get utilities ready for the Olympics
Royal Marsden CHP
27 July 2011: The Royal Marsden Hospital in Sutton has announced that it will be installing a Combined Heat and Power plant (CHP) on site. The capacity of the gas-fired CHP unit isn’t given, but further information on the project is provided on the following press release from MITIE, the engineering company leading the development.
Posted in Decentralised Energy, News
Tagged CHP, Decentralised Energy, Hospitals, Sutton
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Failed CHP project in Lambeth…
July 2011: More on the disastrous Roupell Park Combined Heat and Power (CHP) scheme in Lambeth…
Boiler scheme could be in even more hot water
Crucial boiler papers lost in town hall error
Carbon and Energy Fund
July 2011: The Carbon and Energy Fund is a new £100M+ fund that is the sucessor to the Energy and Sustainability fund. The fund exists to fund and support projects in the NHS that meet a certain level of carbon savings per £1000 of investment required. Five projects worth £23m have signed up to tranche 1. This tranche is full and enters mini-competition in July 2011. The Fund intends to facilitate the delivery of 60 upgrades for NHS Trusts over the next 4 years in a series of tranches – details of the next funding tranche are here.
A number of London-based case studies of energy saving actions previously taken are available including:
Royal Free Hospital, London
Natural History Museum and Victoria & Albert Museum London
Kingston Hospital
Posted in News
Tagged Camden, CHP, Funding, Hospitals, Kensington and Chelsea, Kingston
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