Data on gas consumption over the past 10 years shows that households in boroughs such as Harrow, Barnet, Bromley, Bexley and Richmond are consistently among the highest consumers of gas.
In contrast, Tower Hamlets, Southwark and Islington have the lowest levels of consumption.
In 2014 the average domestic consumption in Harrow was 17,000 kilowatt hours. In Tower Hamlets it was a little over half that.
The nature of the housing stock is likely to be an important factor here. The larger number of older, bigger homes homes in outer areas need more gas to heat than the smaller flats, both council and privately owned, in inner areas.
Data analysis on areas of the capital with the most energy efficient homes, previously reported by Urbs, shows Tower Hamlets as the leading borough, largely due to the modern development of flats and houses in Canary Wharf and Limehouse.
The area that perform best for energy efficient housing in the map below tend to be the ones with the lower levels of gas consumption in the map above.