Wales home energy efficiency

June 2023

Residential buildings are energy-inefficient. The average home energy rating in Wales region is 62.7, D rating. This is by 2.4 worse score than the average home energy rating in England and Wales. The average potential rating is 79.7, C rating.

Wales homes by energy rating

Energy rating	Wales	England & Wales
█ A	0.2%	0.1%
█ B	8.5%	11.5%
█ C	55.1%	57.6%
█ D	13.3%	12.9%
█ E	16.1%	14.0%
█ F	4.9%	3.0%
█ G	1.8%	0.8%

Wales homes by potential energy rating

Potential energy rating	Wales	England & Wales
█ A	4.4%	3.9%
█ B	49.9%	47.2%
█ C	40.2%	44.4%
█ D	1.7%	1.8%
█ E	1.7%	1.6%
█ F	0.6%	0.4%
█ G	1.5%	0.7%

Wales homes by main heating control energy efficiency

Main heating control	Wales	England & Wales
█ very poor	7.5%	5.2%
█ poor	8.2%	8.9%
█ average	30.0%	27.5%
█ good	49.3%	52.5%
█ very good	5.0%	5.9%

Wales homes by main heating energy efficiency

Main heat efficiency	Wales	England & Wales
█ very poor	5.0%	6.0%
█ poor	4.1%	3.2%
█ average	13.6%	10.1%
█ good	74.2%	76.2%
█ very good	3.1%	4.6%

Wales homes by walls energy efficiency

Walls efficiency	Wales	England & Wales
█ very poor	27.1%	23.5%
█ poor	16.4%	15.9%
█ average	9.2%	10.8%
█ good	38.9%	39.0%
█ very good	8.4%	10.9%

Wales homes by windows energy efficiency

Windows efficiency	Wales	England & Wales
█ very poor	4.0%	5.9%
█ poor	3.4%	3.8%
█ average	53.4%	51.1%
█ good	31.7%	29.4%
█ very good	7.4%	9.8%

Wales homes by hot water heating energy efficiency

Hot water heating energy efficiency	Wales	England & Wales
█ very poor	7.6%	7.4%
█ poor	8.6%	6.6%
█ average	15.1%	13.6%
█ good	64.0%	66.3%
█ very good	4.6%	6.0%

Wales homes by lighting energy efficiency

Lightning energy efficiency	Wales	England & Wales
█ very poor	12.3%	12.6%
█ poor	8.9%	8.0%
█ average	14.8%	13.8%
█ good	17.3%	16.2%
█ very good	46.6%	49.4%