Great Britain has just marked an exciting milestone in its energy transition, with renewable electricity generation hitting record levels in 2025 – a clear sign of British innovation, investment and environmental ambition.
Provisional data from the National Energy System Operator shows that wind, solar, hydro and biomass generated more than 127 terawatt hours (TWh) of electricity last year, beating the previous high set in 2024 and highlighting a significant year‑on‑year jump in clean power output. Wind remained the single largest contributor, while solar power climbed nearly a third compared with 2024 thanks to both increased capacity and exceptionally sunny weather.
These numbers build on earlier official statistics showing that renewables already produced over half of the UK’s electricity in 2024 – the first time this has ever happened, with wind, solar, hydro and bioenergy together supplying more than 50 % of total generation. Fossil fuels such as coal and gas, by contrast, continued to decline as Britain moves toward cleaner, more secure energy.
The progress is more than just symbolic. In 2025 so far, the country has seen periods where 100 % of electricity demand was met by clean energy alone, with renewables covering entire days of power needs without fossil fuels. Carbon Brief
Behind these achievements is a surge in new capacity, from both onshore and offshore wind farms to rapidly growing solar installations on homes, businesses and fields – showing that British communities are not only using clean energy but actively building it.
This renewable momentum strengthens Britain’s energy security, cuts carbon emissions and supports new green jobs across the country. In a world focused on climate action and technological leadership, the UK’s record year for wind and solar shows that Britain is not just part of the clean energy future, it’s helping lead it.
