Market
UK solar passed two million installations after the busiest single month since 2012, and the momentum is still building
March 2026 saw more than 27,000 new UK solar installations, the highest monthly total since 2012, pushing the national count past two million for the first time, with April adding a further 23,000 and total capacity reaching 22.1 GW.
28 July 2026 · Source: pv magazine International
The number that matters more than the two million headline is the monthly rate behind it. 27,607 installations in March 2026 adding 121 MW is the single busiest month for UK solar deployment in fourteen years, and it was not an isolated spike: nine of the ten strongest months for solar deployment on record have happened within the last twelve months, which points to a sustained shift in installation capacity and demand rather than a one-off surge.
Domestic demand is the larger part of the story. More than half of April 2026's 23,000 new installations went on homes rather than commercial or utility-scale sites, and total UK solar capacity grew 11.7% over the past year, adding 2.3 GW to reach 22.1 GW by the end of March. For anyone weighing up whether solar has genuinely gone mainstream in the UK or is still a minority choice, this is the clearest quantitative answer available: it has moved decisively into the mainstream over the last year.
The supply-side context is worth knowing too, even though it sits above the level of an individual household decision. The government approved the Springwell project in April 2026, designed to produce 800 MW once complete, which will be the largest power-producing solar farm in UK history. Large-scale approvals like this do not directly affect a domestic install price, but they are a signal of continued policy and investment confidence in solar as a sector, which tends to correlate with a more competitive, better-resourced installer market at the domestic end too.
Watch installer capacity and lead times as this pace continues. A market growing this fast for this long tends to put pressure on qualified installer availability before it puts pressure on equipment supply, and Kent is not immune to that: if you're planning an MCS install, booking ahead of the season you actually want it completed in is a more reliable strategy in a market growing at this rate than waiting and hoping a slot opens up.
Read the original: pv magazine International. Commentary is Sandwich Solar's own editorial view; the original reporting is credited to its publisher.
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