Here are a few of our favourite solar facts from the latest industry figures. Perfect for the pub, the school gate or the garden fence.
- In 2020 the UK fitted about 21,200 rooftop systems. In 2026 it is on track for around 300,000.
- March 2026 was the busiest month ever, with 28,861 certified installations.
- Solar supplied 14.4% of Great Britain’s electricity in July 2026, up from 9.6% a year before.
- A typical home system is around 3 to 5 kW, which is roughly 7 to 11 panels at 450 W each.
- Almost double the number of home batteries were fitted in the first half of 2026 compared with 2025.
- In England, 58% of new homes built in the first half of 2026 had solar, around 55,773 homes.
- It took 10 years to reach the first million UK solar installs. The second million took less than 7.
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Figures are the latest available at the time of writing (November 2026) and are for general information only, not financial or tax advice.