Solar in Northern Ireland: generation and cost
Across the 11 places we model in Northern Ireland, the median is 817 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 Northern Ireland produces 817 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 UK median, since no regional figure is published for this area — the full table is on cost per kW.
The largest places we model here
| Place | kWh per kWp | Live postcodes |
|---|---|---|
| Ards and North Down | 888 | 4,148 |
| Lisburn and Castlereagh | 832 | 3,495 |
| Belfast | 831 | 7,345 |
| Armagh City, Banbridge and Craigavon | 827 | 5,229 |
| Antrim and Newtownabbey | 820 | 3,428 |
| Mid Ulster | 817 | 4,065 |
| Newry, Mourne and Down | 805 | 4,851 |
| Mid and East Antrim | 796 | 3,413 |
| Causeway Coast and Glens | 788 | 4,081 |
| Fermanagh and Omagh | 781 | 5,736 |
| Derry City and Strabane | 748 | 3,510 |
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 Northern Ireland 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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