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The Energy Efficiency (Private Rented Property) (Scotland) regulations 2020: BRIA

Business and regulatory impact assessment (BRIA) for the Energy Efficiency (Domestic Private Rented Property) (Scotland) regulations 2020.


15. Appendix A: Measures used in modelling

Table 12. Measures to raise dwellings from EPC of F or G to an EPC E

Measure Number As % of measures % of dwellings receiving measure
loft insulation (virgin and top up) 16,163 31% 49%
replace secondary heating with one more efficient 4,285 8% 13%
cavity wall insulation 3,690 7% 11%
room in the roof insulation 3,551 7% 11%
fan electric storage heaters with auto charge control 3,340 6% 10%
low energy lighting 100% 3,299 6% 10%
quantum storage heaters 3,017 6% 9%
hot water tank jacket 80mm 3,007 6% 9%
baffle / damper to open fire 1,831 3% 6%
room thermostat 1,824 3% 6%
floor insulation 1,668 3% 5%
draughtproof windows and doors 1,619 3% 5%
switch to E24 tariff 1,124 2% 3%
TRVs 946 2% 3%
replace oil boiler with condensing boiler 90% 857 2% 3%
replace gas boiler with condensing boiler 88% 553 1% 2%
flat roof insulation 529 1% 2%
Auto charge control 497 1% 2%
full controls package (r/stat, programmer and TRVs) 290 1% 1%
insulated external doors 251 0% 1%
full oil central heating system inc controls 217 0% 1%
secondary glazing to 2.4 214 0% 1%
solid wall insulation 114 0% 0%
full biomass central heating system inc controls 17 0% 0%

Table 13. Measures to raise dwellings from EPC of E, F or G to an EPC D

Measure Number As % of measures % of dwellings receiving measure
loft insulation (virgin and top up) 28,668 14.2% 34.5%
low energy lighting 100% 23,861 11.8% 28.7%
hot water tank jacket 80mm 18,537 9.2% 22.3%
cavity wall insulation 18,222 9.0% 22.0%
floor insulation 17,135 8.5% 20.6%
replace secondary heating with one more efficient 14,219 7.0% 17.1%
room in the roof insulation 11,412 5.7% 13.7%
quantum storage heaters 11,014 5.5% 13.3%
room thermostat 8,219 4.1% 9.9%
fan electric storage heaters with auto charge control 6,480 3.2% 7.8%
solid wall insulation 6,071 3.0% 7.3%
replace oil boiler with condensing boiler 90% 6,012 3.0% 7.2%
switch to E24 tariff 4,969 2.5% 6.0%
draughtproof windows and doors 4,907 2.4% 5.9%
TRVs 4,607 2.3% 5.6%
Cylinder stat for hot water cylinder 3,116 1.5% 3.8%
baffle / damper to open fire 2,518 1.2% 3.0%
secondary glazing to 2.4 2,379 1.2% 2.9%
insulated external doors 2,121 1.1% 2.6%
replace gas boiler with condensing boiler 88% 1,421 0.7% 1.7%
full oil central heating system inc controls 1,417 0.7% 1.7%
Auto charge control 1,347 0.7% 1.6%
2m diameter wind turbine on roof 1,109 0.5% 1.3%
flat roof insulation 1,069 0.5% 1.3%
full controls package (r/stat, programmer and TRVs) 467 0.2% 0.6%
double glazing to 1.8 247 0.1% 0.3%
Solar thermal 4m2 93 0.0% 0.1%
full gas central heating system inc controls 82 0.0% 0.1%
full biomass central heating system inc controls 17 0.0% 0.0%

Contact

Email: Domestic.Regulations@gov.scot

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