…then if we invest ~£332bn we get a £22.5 – £10 = £12bn (55%) energy cost reduction (Figure 1 & Table 2 below). As you’d expect we see the biggest improvement costs and absolute savings in the bands with the most dwellings (C & D) but the biggest % savings in F & G.
Figure 1: Estimated current energy costs, post-improvement costs and % reduction for English dwellings (EHS 2018, own calculations, see Table below for detail)
Remember the £3.8bn [Social Housing Decarbonisation Fund](https://www.housing.org.uk/news-and-blogs/news/chancellors-statement-and-affordable-homes-programme/)? Well according to the EHS 2018 social housing is already leading the way with 56% of them in bands A-C compared to under 30% of owner-occupied. As a result if we ignore the A-Cs then we ‘only’ need to invest £24bn in social housing retrofits for the 1.79m D-G dwellings (see Table 3 below). If we include the A-Cs (the published tables don’t give a A/B/C breakdown) it’s a £54bn investment. On these numbers, £3.8bn a year for 10 years might see this sector home…
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@@ -67,4 +68,8 @@ The Trust instead recommends a focus on space conditioning energy intensity (kWh
Intriguingly this is exactly what N[ew Zealand’s Ministry of Business, Innovation and Employment (MBIE)](https://www.mbie.govt.nz/dmsdocument/11793-transforming-operational-efficiency) is currently consulting on with respect to new build dwellings as part of their Building for Climate Change: Transforming operational efficiency and reducing whole-of-life embodied carbon programme. Watch this space.
# Detailed tables
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# Detailed tables
# Admission
We did the original analysis in the excel workbooks we downloaded from gov.uk. You can find them here (Tab: AT3.4 Edited). Hey, no-one's perfect.
