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<p>(1) The most recent analysis of the number of homes within each Energy Performance
Certificate (EPC) band that this Department has is the 2016 English Housing Survey
which estimated that over 7 million dwellings in England had an energy efficiency
rating of A to C, over 15.5 million dwellings were rated C to D and over 1.1 million
dwellings were rated F to G.</p><p>(2) This Department does not hold any information
on the amount by which annual CO2 emissions would be reduced if every home within
each rating band were to be improved to the next rating band level. However, the Government’s
Clean Growth Strategy estimated that upgrading energy efficiency from an EPC Band
E to an EPC Band D reduces energy costs by £380 per year on average.</p>
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