Hull greenest city in terms of energy efficiency
The poor energy efficiency of London's housing makes it Britain's least green city. Kingston upon Thames is the London's least green borough, while Hull topped the league for energy saving.
Btitish Gas launched the findings to mark the launch of its Green Streets campaign, a year-long social experiment to demonstrate the energy savings that can be achieved by households up and down the country in existing homes.
Phil Bentley, Managing Director, British Gas, said,
"For every £3 we spend heating our homes £1 is wasted because of poor insulation. And whilst strict standards on new build are needed, most of the energy being consumed is in the ageing homes we live in today. It is making changes in these properties that will give us the biggest carbon emission reductions. I am confident that the 'Green Streets' campaign will show that simple changes can be made to adapt existing homes to help address this problem."
A ranking of the largest UK cities according to the energy efficiency ratings of households:
| City | Average rating |
| Kingston upon Hull | 67.57 |
| Glasgow | 67.4 |
| Newcastle upon Tyne | 66.78 |
| Portsmouth | 66.76 |
| Northampton | 66.7 |
| Edinburgh | 66.5 |
| Plymouth | 66.34 |
| Southampton | 66.15 |
| Reading | 66.08 |
| Cardiff | 66.03 |
| Liverpool | 65.62 |
| Bradford | 65.6 |
| Leeds | 65.5 |
| Bristol | 65.43 |
| Sheffield | 65.41 |
| Coventry | 65.27 |
| Manchester | 64.99 |
| Stoke-on-Trent | 64.51 |
| Dudley | 64.33 |
| Leicester | 64.15 |
| Wolverhampton | 63.72 |
| Birmingham | 63.7 |
| Derby | 63.64 |
| Nottingham | 63.32 |
| London | 62.28 |
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