News
Trade group rejects heat pump emission claims
■
Claims that hydrofl uoro- carbon (HFC) emissions
from air-source heat pumps add 20% to their carbon footprint have been rejected. A report by Atlantic Consulting
says that the overall carbon footprint of a UK heat pump is roughly the same as the footprints of gaseous fuels used in heating – using footprint estimations by the UK Department of Energy and Climate Change. The report’s author, managing
director Eric Johnson, claimed that its fi ndings call into question EU and UK policy in this area – in particular the proposed Renewable Heat Incentive (RHI) – which he says do not include fl uorocarbon emissions in their evaluation of heat pumps. The report’s calculations take into account a certain amount of leakage from the pumps. Under the RHI, homes and offi ces in the UK would be
as such, has no bearing on the RHI scheme, or, for that matter, the Directive on Electricity Production from Renewable Energy Sources, (RES Directive), as these both relate to renewable technologies and not carbon effi ciencies. ‘That said, the carbon effi ciency
Increased use of heat pumps could ‘re-carbonise’ heating, it is claimed
subsidised to replace gas- or LPG-fi red heating with heat pumps, but Johnson says: ‘This will not decarbonise UK heating; in fact, it might re-carbonise it.’ The UK Heat Pump Association
rejected the claim. Its commerical manager, Terry Seward, said: ‘This report by Atlantic Consulting is a carbon footprinting exercise and,
of heat pump technologies will of course vary across Europe, depending upon the carbon intensity of electricity distribution systems applicable in each country.’ He added: ‘We do not accept
that the overall carbon footprint is roughly the same as, or higher than, gaseous fuels used for heating in the UK, and in our view it is totally inappropriate to attempt to factor in alleged average HFC refrigerant leakage data, as the majority of heat pumps are hermetically sealed, like a domestic refrigerator, and leaks are highly unlikely to occur.’ For a copy of the report, contact 020 7591 9610.
Supermarkets need ‘holisitic’ view on gases
Supermarkets should adopt a ‘holistic’ approach to refrigerants if they are to reduce their carbon footprint, according to a trade body. EPEE, which represents HVAC industries in Europe, commissioned a study to evaluate the performance of supermarket refrigeration technologies. It is calling for a holistic approach on refrigerants, taking into account the eco- effi ciency concept, the freedom of refrigerant choice, and the need to prioritise energy effi ciency. Its director general Andrea
Voigt said: ‘To reduce the overall climate impact of supermarket refrigeration systems energy- effi ciency, the immediate reduction of direct emissions by improving the tightness of installations and using lower GWP (Global Warming Potential) refrigerants wherever possible, as well as safety and reliability, should drive the choice of technology adapted to each application.’
www.epeeglobal.org
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November 2010 CIBSE Journal
15
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