To ask the Secretary of State for Business, Energy and Industrial Strategy, what estimate his Department has made of the proportion of energy used by hot water in a three bedroom semi-detached home with cavity wall insultation in the UK.
Answered on
26 May 2022
Around 20% of annual heating energy is used by hot water in an average three-bedroom semi-detached home with cavity wall insultation. This estimate is based on model outputs for Great Britain from the National Household Model.
Answered by
Department for Business, Energy and Industrial Strategy
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