Northamptonshire house energy certificates
The following charts compare house energy certificates in Northamptonshire county to the house energy certificates in whole England and Wales. Outer ring charts show share in Northamptonshire, inner charts show share for England and Wales. Data is taken from energy certificates for domestic buildings. The certificates were issued between 2008-2016. Data is available for more than 50% of all domestic properties. In case of multiple certificate for one property, only the latest available certificate data was used in the charts.
Northamptonshire houses by energy rating
The latest available energy rating converted into a linear 'A to G' rating (from the most energy efficient to the least energy efficient - G). Energy rating was measured in the period of 2008-2016
| Energy rating | Northamptonshire | England & Wales |
|---|
| █ A | 0.1% | 0.1% |
| █ B | 11.9% | 6.7% |
| █ C | 50.9% | 49.4% |
| █ D | 14.5% | 16.6% |
| █ E | 17.1% | 20.4% |
| █ F | 4.6% | 5.5% |
| █ G | 0.9% | 1.3% |
Northamptonshire houses by potential energy rating
Estimated potential energy rating converted into a linear 'A to G' rating (A - is the most energy efficient)
| Potential energy rating | Northamptonshire | England & Wales |
|---|
| █ A | 5.0% | 2.9% |
| █ B | 43.6% | 43.7% |
| █ C | 42.7% | 44.5% |
| █ D | 3.5% | 3.5% |
| █ E | 3.5% | 3.4% |
| █ F | 0.9% | 0.9% |
| █ G | 0.9% | 1.0% |
Northamptonshire houses by main heating control energy efficiency
| Main heating control | Northamptonshire | England & Wales |
|---|
| █ very poor | 3.4% | 7.2% |
| █ poor | 11.4% | 11.0% |
| █ average | 34.4% | 35.3% |
| █ good | 43.0% | 41.9% |
| █ very good | 7.7% | 4.6% |
Northamptonshire houses by main heating energy efficiency
| Main heat efficiency | Northamptonshire | England & Wales |
|---|
| █ very poor | 1.1% | 1.7% |
| █ poor | 2.8% | 2.8% |
| █ average | 11.7% | 11.9% |
| █ good | 75.9% | 76.7% |
| █ very good | 8.5% | 6.9% |
Northamptonshire houses by walls energy efficiency
| Walls efficiency | Northamptonshire | England & Wales |
|---|
| █ very poor | 22.3% | 25.8% |
| █ poor | 10.4% | 17.6% |
| █ average | 4.0% | 3.6% |
| █ good | 52.6% | 46.7% |
| █ very good | 10.7% | 6.3% |
Northamptonshire houses by windows energy efficiency
| Windows efficiency | Northamptonshire | England & Wales |
|---|
| █ very poor | 4.3% | 5.5% |
| █ poor | 4.6% | 5.7% |
| █ average | 54.8% | 54.7% |
| █ good | 26.4% | 28.6% |
| █ very good | 9.9% | 5.7% |
Northamptonshire houses by hot water heating energy efficiency
| Hot water heating energy efficiency | Northamptonshire | England & Wales |
|---|
| █ very poor | 3.9% | 4.4% |
| █ poor | 7.8% | 8.1% |
| █ average | 16.5% | 16.4% |
| █ good | 61.8% | 63.1% |
| █ very good | 10.1% | 8.0% |
Northamptonshire houses by lighting energy efficiency
| Lightning energy efficiency | Northamptonshire | England & Wales |
|---|
| █ very poor | 16.8% | 18.8% |
| █ poor | 13.5% | 13.5% |
| █ average | 20.5% | 19.9% |
| █ good | 19.6% | 19.1% |
| █ very good | 29.6% | 28.7% |
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