Record 2025: Wind and Solar Generated More Than Half UK Electricity for First Time
BBC News analysis published in early 2026 confirmed that the year 2025 represented a historic milestone for the United Kingdom’s energy system: for the first time, wind and solar generation collectively accounted for more than half of total electricity produced across the country during the course of the year. The achievement marked the culmination of a decade and a half of sustained investment in offshore wind in particular, and significantly accelerated the government’s stated trajectory towards the 2030 clean power target.
Offshore wind remains the dominant source within the renewable mix, having expanded dramatically since the construction of early North Sea installations in the 2010s. The UK now hosts some of the largest offshore wind projects in the world, with turbines operating in waters off Yorkshire, Norfolk, the Thames Estuary and the Scottish and Welsh coasts. The continued commissioning of additional capacity through 2024 and 2025 pushed total offshore wind output to levels that could previously only have been achieved during the most favourable weather conditions, but which are now regularly achieved on typical days.
Solar generation, once considered too dependent on unreliable British sunshine to make a major contribution, has also grown significantly as panel costs have fallen and ground-mounted farm applications have been approved across southern England and the Midlands. The expansion in 2026 with the approval of Springwell Solar Farm in Lincolnshire at 800MW added further to a pipeline already transforming the country’s generation mix.
The 50 percent renewable threshold, while celebrated by climate campaigners and energy industry figures, does not yet represent a fully clean grid. The electricity system still relies on gas-fired power stations for balancing and backup supply during periods of low wind and solar output, and the challenge of delivering a truly dispatchable clean power system by 2030 requires substantial additional investment in storage, interconnectors and flexible demand management.
