Gwent home energy efficiency

January 2026

Residential buildings are energy-efficient. The average home energy rating in Gwent county is 66.3, D rating. This is by 0.3 better score than the average home energy rating in England and Wales. The average potential rating is 80.9, C rating.

Gwent homes by energy rating

Energy rating	Gwent	England & Wales
█ A	0.4%	0.2%
█ B	9.8%	11.5%
█ C	64.0%	60.8%
█ D	11.4%	11.8%
█ E	11.5%	12.2%
█ F	2.2%	2.6%
█ G	0.7%	0.8%

Gwent homes by potential energy rating

Potential energy rating	Gwent	England & Wales
█ A	4.8%	3.6%
█ B	53.0%	47.8%
█ C	39.4%	44.6%
█ D	1.0%	1.5%
█ E	0.8%	1.3%
█ F	0.2%	0.3%
█ G	0.7%	0.7%

Gwent homes by main heating control energy efficiency

Main heating control	Gwent	England & Wales
█ very poor	6.8%	4.5%
█ poor	6.3%	8.2%
█ average	25.7%	25.3%
█ good	56.0%	56.4%
█ very good	5.1%	5.7%

Gwent homes by main heating energy efficiency

Main heat efficiency	Gwent	England & Wales
█ very poor	2.6%	6.4%
█ poor	1.9%	3.0%
█ average	7.1%	9.8%
█ good	85.6%	76.7%
█ very good	2.8%	4.0%

Gwent homes by walls energy efficiency

Walls efficiency	Gwent	England & Wales
█ very poor	23.1%	22.3%
█ poor	17.5%	15.9%
█ average	10.9%	12.9%
█ good	39.2%	38.0%
█ very good	9.3%	10.9%

Gwent homes by windows energy efficiency

Windows efficiency	Gwent	England & Wales
█ very poor	3.7%	5.4%
█ poor	3.5%	4.7%
█ average	52.6%	50.4%
█ good	32.3%	30.1%
█ very good	7.9%	9.3%

Gwent homes by hot water heating energy efficiency

Hot water heating energy efficiency	Gwent	England & Wales
█ very poor	3.5%	7.5%
█ poor	5.6%	6.3%
█ average	10.4%	12.9%
█ good	76.6%	68.1%
█ very good	3.9%	5.2%

Gwent homes by lighting energy efficiency

Lightning energy efficiency	Gwent	England & Wales
█ very poor	11.3%	10.5%
█ poor	8.1%	7.0%
█ average	12.5%	12.0%
█ good	15.3%	15.9%
█ very good	52.8%	54.6%

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