Devon home energy efficiency

June 2023

Residential buildings are energy-inefficient. The average home energy rating in Devon county is 63.5, D rating. This is by 1.6 worse score than the average home energy rating in England and Wales. The average potential rating is 78.9, C rating.

Devon homes by energy rating

Energy rating	Devon	England & Wales
█ A	0.3%	0.1%
█ B	12.0%	11.5%
█ C	53.0%	57.6%
█ D	12.5%	12.9%
█ E	15.5%	14.0%
█ F	5.0%	3.0%
█ G	1.7%	0.8%

Devon homes by potential energy rating

Potential energy rating	Devon	England & Wales
█ A	5.9%	3.9%
█ B	43.9%	47.2%
█ C	43.3%	44.4%
█ D	2.1%	1.8%
█ E	2.3%	1.6%
█ F	0.7%	0.4%
█ G	1.7%	0.7%

Devon homes by main heating control energy efficiency

Main heating control	Devon	England & Wales
█ very poor	2.6%	5.2%
█ poor	11.9%	8.9%
█ average	27.0%	27.5%
█ good	50.9%	52.5%
█ very good	7.6%	5.9%

Devon homes by main heating energy efficiency

Main heat efficiency	Devon	England & Wales
█ very poor	6.0%	6.0%
█ poor	5.7%	3.2%
█ average	16.3%	10.1%
█ good	67.2%	76.2%
█ very good	4.8%	4.6%

Devon homes by walls energy efficiency

Walls efficiency	Devon	England & Wales
█ very poor	20.4%	23.5%
█ poor	17.5%	15.9%
█ average	11.6%	10.8%
█ good	39.0%	39.0%
█ very good	11.5%	10.9%

Devon homes by windows energy efficiency

Windows efficiency	Devon	England & Wales
█ very poor	5.8%	5.9%
█ poor	4.7%	3.8%
█ average	49.7%	51.1%
█ good	29.6%	29.4%
█ very good	10.1%	9.8%

Devon homes by hot water heating energy efficiency

Hot water heating energy efficiency	Devon	England & Wales
█ very poor	10.3%	7.4%
█ poor	7.4%	6.6%
█ average	16.8%	13.6%
█ good	58.0%	66.3%
█ very good	7.5%	6.0%

Devon homes by lighting energy efficiency

Lightning energy efficiency	Devon	England & Wales
█ very poor	10.6%	12.6%
█ poor	7.8%	8.0%
█ average	13.5%	13.8%
█ good	16.6%	16.2%
█ very good	51.5%	49.4%