Solar in London: generation and cost
Across the 33 places we model in London, the median is 924 kWh a year for every kWp installed — against a UK median of 908. Individual towns and councils are listed below.
The median place we model in London produces 924 kWh a year per kWp, against a UK median of 908 across all the places in our set.
Installed cost on these pages uses the region’s own mean in the official cost statistics — the full table is on cost per kW.
The largest places we model here
| Place | kWh per kWp | Live postcodes |
|---|---|---|
| Havering | 947 | 4,957 |
| Bexley | 945 | 4,385 |
| Barking and Dagenham | 942 | 2,998 |
| Greenwich | 940 | 5,211 |
| Redbridge | 940 | 4,564 |
| Bromley | 937 | 7,106 |
| Newham | 934 | 4,336 |
| Richmond upon Thames | 928 | 4,298 |
| Kingston upon Thames | 927 | 3,489 |
| Hillingdon | 926 | 6,205 |
| Hounslow | 926 | 4,931 |
| Merton | 926 | 3,681 |
| Hammersmith and Fulham | 926 | 3,652 |
| Croydon | 925 | 7,041 |
| Sutton | 925 | 3,842 |
| Southwark | 924 | 7,237 |
| Lewisham | 924 | 4,935 |
| Wandsworth | 923 | 6,239 |
| Tower Hamlets | 923 | 5,967 |
| Kensington and Chelsea | 923 | 4,254 |
Postcode counts are a size proxy from the ONS Postcode Directory, not population.
What varies within a region
More than between regions, usually. Two houses in the same town can differ by more than the gap between London and the national median, because orientation, pitch and shading dominate — which is why every place page here ends by pointing at the calculator rather than at a headline number.
Sources
- PVGIS 5.3 One run per place at its own postcode centroid. Contains modified Joint Research Centre data.
- Solar photovoltaic (PV) cost data
Contains public sector information licensed under the Open Government Licence v3.0.
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