2025 strongest year for solar deployment
Solar roof

New data from the government shows that 2025 was the strongest year on record for solar deployment, with 269,000 installations completed across the UK.

Around 255,000 of these were rooftop solar. This means that at least 95 per cent of all new solar was installed on homes, businesses and other buildings. This equates to a new rooftop solar installation every two minutes.

The latest figures also show that 9 of the 10 best-performing months ever recorded have occurred in the past year, with nearly 23,000 new installations in April alone.

The UK surpassed 2 million total solar installations for the first time in March 2026.

The data also shows that the cost of acquiring and installing solar PV has decreased by up to 9 per cent.

Energy Secretary Ed Miliband said: "As we face a second fossil fuel crisis in 5 years, Britain is taking back control of their energy by generating more clean power than ever before. Record-breaking solar growth means greater energy security, lower exposure to volatile fossil fuel markets which we can’t control.

"This is what our clean power mission looks like: backing homegrown energy, giving people more control over their bills, and building a stronger, more resilient energy system for the future."