The UK housebuilding industry faces a significant challenge from government: that all new homes in England must be zero carbon from 2016. The Zero Carbon Hub was established in 2008 as a non-profit organisation to work with industry and support the government ambition of delivering zero carbon homes from 2016. Our recent work with industry has indicated that there is extensive evidence of a considerable 'performance gap' between the energy use of new homes as-designed and the actual use once the building is completed. This gap occurs when a constructed home requires more energy than was predicted during its design, before taking into account the behaviour of occupants.
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