Solar in South East: generation and cost

Across the 192 places we model in South East, the median is 942 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 South East produces 942 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

PlacekWh per kWpLive postcodes
Polegate1,074313
Seaford1,069860
Eastbourne1,0592,793
Chichester1,0581,229
Newhaven1,058385
Hailsham1,055691
Newport, Isle of Wight1,054718
Ventnor1,054256
Peacehaven1,053416
Barnham, Arun1,052295
Rustington1,0491,126
Littlehampton1,047495
Lewes1,046583
Selsey1,044339
Worthing1,0413,083
Sandown1,040370
Brighton and Hove1,0385,051
Bexhill-on-Sea1,0371,206
Freshwater and Totland1,036387
Bognor Regis1,0342,115

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 South East 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

  1. PVGIS 5.3 European Commission, Joint Research Centre · Accessed 20 August 2026 One run per place at its own postcode centroid. Contains modified Joint Research Centre data.
  2. Solar photovoltaic (PV) cost data Department for Energy Security and Net Zero · Accessed 20 August 2026 · OGL v3.0

Contains public sector information licensed under the Open Government Licence v3.0.

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