Gwynedd home energy efficiency

June 2023

Residential buildings are energetically very inefficient. The average home energy rating in Gwynedd county is 54.7, E rating. This is by 10.3 worse score than the average home energy rating in England and Wales. The average potential rating is 76.6, C rating.

Gwynedd homes by energy rating

Energy rating	Gwynedd	England & Wales
█ A	0.5%	0.1%
█ B	5.3%	11.5%
█ C	39.8%	57.6%
█ D	12.5%	12.9%
█ E	22.7%	14.0%
█ F	13.3%	3.0%
█ G	5.9%	0.8%

Gwynedd homes by potential energy rating

Potential energy rating	Gwynedd	England & Wales
█ A	4.9%	3.9%
█ B	40.5%	47.2%
█ C	40.5%	44.4%
█ D	3.3%	1.8%
█ E	4.3%	1.6%
█ F	2.1%	0.4%
█ G	4.5%	0.7%

Gwynedd homes by main heating control energy efficiency

Main heating control	Gwynedd	England & Wales
█ very poor	4.0%	5.2%
█ poor	16.3%	8.9%
█ average	28.9%	27.5%
█ good	45.9%	52.5%
█ very good	5.0%	5.9%

Gwynedd homes by main heating energy efficiency

Main heat efficiency	Gwynedd	England & Wales
█ very poor	10.3%	6.0%
█ poor	11.0%	3.2%
█ average	29.2%	10.1%
█ good	47.5%	76.2%
█ very good	2.0%	4.6%

Gwynedd homes by walls energy efficiency

Walls efficiency	Gwynedd	England & Wales
█ very poor	33.7%	23.5%
█ poor	15.3%	15.9%
█ average	7.6%	10.8%
█ good	35.3%	39.0%
█ very good	8.1%	10.9%

Gwynedd homes by windows energy efficiency

Windows efficiency	Gwynedd	England & Wales
█ very poor	5.9%	5.9%
█ poor	5.3%	3.8%
█ average	50.1%	51.1%
█ good	33.0%	29.4%
█ very good	5.7%	9.8%

Gwynedd homes by hot water heating energy efficiency

Hot water heating energy efficiency	Gwynedd	England & Wales
█ very poor	18.6%	7.4%
█ poor	14.7%	6.6%
█ average	21.3%	13.6%
█ good	41.6%	66.3%
█ very good	3.8%	6.0%

Gwynedd homes by lighting energy efficiency

Lightning energy efficiency	Gwynedd	England & Wales
█ very poor	10.4%	12.6%
█ poor	7.6%	8.0%
█ average	13.3%	13.8%
█ good	16.9%	16.2%
█ very good	51.9%	49.4%