Latest government data records 2,026,000 installations totaling 22.3 GW of capacity. Total installed capacity grew by 11.2% over the 12 months to the end of April 2026.
There are now more than 2 million solar installations in the United Kingdom, according to government data, with total capacity reaching 22.3 GW at the end of April 2026.
UK solar deployment is on an upward trajectory with 2.3 GW added in the 12-months to the end of April 2026, representing 11.2% growth in total installed capacity. Deployment data reveal nine of the top ten months on record for solar installations fell within the past 12 months.
There were 22,733 solar installations in April 2026, accounting for 107 MW of capacity. This was below the 194 MW of new capacity recorded for April 2025, however deployment data compiled by the UK government’s Department for Energy Security and Net Zero (DESNZ) is provisional and subject to revision as more information becomes available.
Utility-scale solar installations still account for the majority of UK solar in capacity terms, but deployment volume in the residential segment drove total installations beyond 2 million in March, with further growth anticipated.
