Gwynedd home energy certificates
The following charts compare home (both flats and houses) energy certificates in Gwynedd county to the home energy certificates in whole England and Wales. Outer ring charts show share in Gwynedd, 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.
Gwynedd homes 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 | Gwynedd | England & Wales |
|---|
| █ A | 0.2% | 0.1% |
| █ B | 4.2% | 9.5% |
| █ C | 37.3% | 52.9% |
| █ D | 12.8% | 14.3% |
| █ E | 22.3% | 17.3% |
| █ F | 15.7% | 4.8% |
| █ G | 7.6% | 1.2% |
Gwynedd homes 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 | Gwynedd | England & Wales |
|---|
| █ A | 2.7% | 2.1% |
| █ B | 27.7% | 38.8% |
| █ C | 46.9% | 50.7% |
| █ D | 5.7% | 3.4% |
| █ E | 8.7% | 3.2% |
| █ F | 4.7% | 0.9% |
| █ G | 3.6% | 0.9% |
Gwynedd homes by main heating control energy efficiency
| Main heating control | Gwynedd | England & Wales |
|---|
| █ very poor | 5.0% | 7.1% |
| █ poor | 22.8% | 13.9% |
| █ average | 33.6% | 33.8% |
| █ good | 34.9% | 41.2% |
| █ very good | 3.7% | 4.0% |
Gwynedd homes by main heating energy efficiency
| Main heat efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 8.2% | 4.1% |
| █ poor | 12.6% | 4.7% |
| █ average | 29.7% | 11.9% |
| █ good | 46.0% | 71.7% |
| █ very good | 3.6% | 7.5% |
Gwynedd homes by walls energy efficiency
| Walls efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 36.0% | 25.7% |
| █ poor | 14.7% | 16.6% |
| █ average | 3.8% | 3.8% |
| █ good | 39.4% | 46.3% |
| █ very good | 6.2% | 7.7% |
Gwynedd homes by windows energy efficiency
| Windows efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 7.9% | 7.5% |
| █ poor | 7.3% | 5.4% |
| █ average | 47.2% | 50.5% |
| █ good | 33.8% | 30.0% |
| █ very good | 3.9% | 6.6% |
Gwynedd homes by hot water heating energy efficiency
| Hot water heating energy efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 17.2% | 6.5% |
| █ poor | 15.5% | 7.8% |
| █ average | 22.1% | 16.7% |
| █ good | 39.3% | 60.4% |
| █ very good | 5.9% | 8.7% |
Gwynedd homes by lighting energy efficiency
| Lightning energy efficiency | Gwynedd | England & Wales |
|---|
| █ very poor | 15.1% | 19.1% |
| █ poor | 11.6% | 12.4% |
| █ average | 17.3% | 18.8% |
| █ good | 19.7% | 18.4% |
| █ very good | 36.3% | 31.3% |
Associated reports: