Publication - Consultation paper
Private rented housing energy efficiency: consultation assessment (part one)
Partial business and regulatory impact assessment (BRIA) of our consultation on efficiency and condition standards.
12. Appendix A - Measures used in modelling
Table 12. Measures to raise dwellings from EPC of F or G to EPC of E
| Number | % of total measures | % of dwellings receiving measure | |
|---|---|---|---|
| loft insulation (virgin and top up) | 14,535 | 31% | 48.5% |
| replace secondary heating with one more efficient | 3,816 | 8% | 12.7% |
| cavity wall insulation | 3,349 | 7% | 11.2% |
| room in the roof insulation | 3,061 | 6% | 10.2% |
| low energy lighting 100% | 3,046 | 6% | 10.2% |
| fan electric storage heaters with auto charge control | 2,886 | 6% | 9.6% |
| quantum storage heaters | 2,747 | 6% | 9.2% |
| hot water tank jacket 80mm | 2,686 | 6% | 9.0% |
| baffle / damper to open fire | 1,700 | 4% | 5.7% |
| room thermostat | 1,546 | 3% | 5.2% |
| floor insulation | 1,537 | 3% | 5.1% |
| draught proof windows and doors | 1,486 | 3% | 5.0% |
| switch to E24 tariff | 1,044 | 2% | 3.5% |
| TRVs | 854 | 2% | 2.8% |
| replace oil boiler with condensing boiler 90% | 715 | 2% | 2.4% |
| replace gas boiler with condensing boiler 88% | 513 | 1% | 1.7% |
| flat roof insulation | 492 | 1% | 1.6% |
| Auto charge control | 461 | 1% | 1.5% |
| full controls package (r/stat, programmer and TRVs) | 270 | 1% | 0.9% |
| insulated external doors | 233 | 0% | 0.8% |
| secondary glazing to 2.4 | 198 | 0% | 0.7% |
| full oil central heating system inc controls | 174 | 0% | 0.6% |
| solid wall insulation | 91 | 0% | 0.3% |
| full biomass central heating system inc controls | 14 | 0% | 0.0% |
| double glazing to 1.8 | 0 | 0% | 0.0% |
| triple glazing to 1.4 | 0 | 0% | 0.0% |
| full gas central heating system inc controls | 0 | 0% | 0.0% |
| full electric radiator system inc controls - off peak tariff | 0 | 0% | 0.0% |
| air source heat pump | 0 | 0% | 0.0% |
| ground source heat pump | 0 | 0% | 0.0% |
| programmer for heating system | 0 | 0% | 0.0% |
| Solar thermal 4m2 | 0 | 0% | 0.0% |
| PV 2kWp | 0 | 0% | 0.0% |
| 2m diameter wind turbine on roof | 0 | 0% | 0.0% |
| 5m wind turbine on stand-alone mast | 0 | 0% | 0.0% |
| Cylinder stat for hot water cylinder | 0 | 0% | 0.0% |
| Air to Air heat pump | 0 | 0% | 0.0% |
| electric CPSU with radiators and controls on E18 tariff | 0 | 0% | 0.0% |
Table 13 . Measures to raise dwellings from EPC of E to D
| Number | As % of total measures | % of target dwellings receiving measure | |
|---|---|---|---|
| low energy lighting 100% | 24,282 | 15% | 26% |
| hot water tank jacket 80mm | 17,772 | 11% | 19% |
| floor insulation | 15,930 | 10% | 17% |
| cavity wall insulation | 15,154 | 9% | 16% |
| loft insulation (virgin and top up) | 15,140 | 9% | 16% |
| replace secondary heating with one more efficient | 10,680 | 6% | 11% |
| quantum storage heaters | 8,303 | 5% | 9% |
| room in the roof insulation | 7,874 | 5% | 8% |
| room thermostat | 7,377 | 4% | 8% |
| solid wall insulation | 5,584 | 3% | 6% |
| replace oil boiler with condensing boiler 90% | 5,435 | 3% | 6% |
| switch to E24 tariff | 5,296 | 3% | 6% |
| fan electric storage heaters with auto charge control | 4,672 | 3% | 5% |
| TRVs | 4,539 | 3% | 5% |
| draught proof windows and doors | 4,151 | 2% | 4% |
| Cylinder stat for hot water cylinder | 3,223 | 2% | 3% |
| insulated external doors | 2,268 | 1% | 2% |
| secondary glazing to 2.4 | 2,147 | 1% | 2% |
| 2m diameter wind turbine on roof | 1,442 | 1% | 2% |
| baffle / damper to open fire | 1,245 | 1% | 1% |
| Auto charge control | 1,113 | 1% | 1% |
| full oil central heating system inc controls | 1,066 | 1% | 1% |
| replace gas boiler with condensing boiler 88% | 905 | 1% | 1% |
| flat roof insulation | 523 | 0% | 1% |
| double glazing to 1.8 | 198 | 0% | 0% |
| full controls package (r/stat, programmer and TRVs) | 109 | 0% | 0% |
| Solar thermal 4m2 | 75 | 0% | 0% |
| full gas central heating system inc controls | 66 | 0% | 0% |
| triple glazing to 1.4 | - | 0% | 0% |
| full biomass central heating system inc controls | - | 0% | 0% |
| full electric radiator system inc controls - off peak tariff | - | 0% | 0% |
| air source heat pump | - | 0% | 0% |
| ground source heat pump | - | 0% | 0% |
| programmer for heating system | - | 0% | 0% |
| PV 2kWp | - | 0% | 0% |
| 5m wind turbine on stand-alone mast | - | 0% | 0% |
| Air to Air heat pump | - | 0% | 0% |
| electric CPSU with radiators and controls on E18 tariff | - | 0% | 0% |
Contact
Email: Denise Buchanan
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