Hertfordshire home energy efficiency

June 2023

Residential buildings are energy-efficient. The average home energy rating in Hertfordshire county is 66.2, D rating. This is by 1.2 better score than the average home energy rating in England and Wales. The average potential rating is 79.2, C rating.

Hertfordshire homes by energy rating

Energy rating	Hertfordshire	England & Wales
█ A	0.1%	0.1%
█ B	11.3%	11.5%
█ C	61.6%	57.6%
█ D	12.0%	12.9%
█ E	12.5%	14.0%
█ F	2.1%	3.0%
█ G	0.4%	0.8%

Hertfordshire homes by potential energy rating

Potential energy rating	Hertfordshire	England & Wales
█ A	2.3%	3.9%
█ B	47.6%	47.2%
█ C	46.1%	44.4%
█ D	1.8%	1.8%
█ E	1.5%	1.6%
█ F	0.2%	0.4%
█ G	0.4%	0.7%

Hertfordshire homes by main heating control energy efficiency

Main heating control	Hertfordshire	England & Wales
█ very poor	2.9%	5.2%
█ poor	9.2%	8.9%
█ average	27.6%	27.5%
█ good	54.2%	52.5%
█ very good	6.1%	5.9%

Hertfordshire homes by main heating energy efficiency

Main heat efficiency	Hertfordshire	England & Wales
█ very poor	6.3%	6.0%
█ poor	3.1%	3.2%
█ average	9.0%	10.1%
█ good	77.9%	76.2%
█ very good	3.7%	4.6%

Hertfordshire homes by walls energy efficiency

Walls efficiency	Hertfordshire	England & Wales
█ very poor	19.0%	23.5%
█ poor	17.0%	15.9%
█ average	11.7%	10.8%
█ good	41.3%	39.0%
█ very good	11.0%	10.9%

Hertfordshire homes by windows energy efficiency

Windows efficiency	Hertfordshire	England & Wales
█ very poor	4.5%	5.9%
█ poor	3.3%	3.8%
█ average	52.5%	51.1%
█ good	29.7%	29.4%
█ very good	10.0%	9.8%

Hertfordshire homes by hot water heating energy efficiency

Hot water heating energy efficiency	Hertfordshire	England & Wales
█ very poor	6.4%	7.4%
█ poor	6.4%	6.6%
█ average	15.8%	13.6%
█ good	66.4%	66.3%
█ very good	4.9%	6.0%

Hertfordshire homes by lighting energy efficiency

Lightning energy efficiency	Hertfordshire	England & Wales
█ very poor	13.3%	12.6%
█ poor	8.6%	8.0%
█ average	14.4%	13.8%
█ good	16.5%	16.2%
█ very good	47.2%	49.4%