Question to the Department for Business, Energy and Industrial Strategy:

To ask the Secretary of State for Business, Energy and Industrial Strategy, what recent estimate his Department has made of the average spend on domestic energy bills by household Energy Performance Certificate rating in the last 12 months for which data is available; and if he will make a statement.

The Department’s latest assessment of the cost of households’ energy requirements, split by their EPC rating, is contained within the Clean Growth Strategy:

https://www.gov.uk/government/uploads/system/uploads/attachment_data/file/651916/BEIS_The_Clean_Growth_online_12.10.17.pdf (see page 73).

To derive these costs, these estimates make standardised assumptions about the temperature a home is heated to, its hot water use and lighting patterns (these assumptions are consistent with those contained within EPCs). Households’ actual energy use may differ - for example where households heat their home to different levels, or use more or less hot water than assumed.