UK sets renewable energy usage record high in 2025

2025 saw wind, solar, and biomass account for 47% of the country’s energy – a record high – with the National Energy System Operator (NESO) reporting wind being the single biggest source of renewable energy. “It has been quite a strong year in terms of deployment of renewables,” said Pranav Menon, research senior associate at the Aurora Energy Research think tank.

Nevertheless, challenges remain in reaching the 2030 climate targets, an objective Menon claims to be “very, very ambitious”. The past year saw demand for electricity in the UK increase by 1% due to the rise in demand for electric vehicles and data centres. This prompted a rise in the production of electricity from fossil gas, which comprised 28% of electricity production, a figure also higher than 2024 levels, reflecting the challenges faced by the government in reaching the ‘Clean Power’ target. Additionally, NESO missed its target of running electricity for at least 30 minutes in 2025 without any fossil fuels. 

The cost of installing small-scale solar farms has significantly reduced, resulting in around 250,000 new panel constructions.

“Overall, UK electricity became slightly more polluting in 2025”, concluded Carbon Brief, a UK-based website dedicated to climate reporting. But hope is not completely lost. While it is true that some of the increased uptake of renewable energy stemmed from the right conditions, including 2025 being the sunniest year in UK history, the cost of installing small-scale solar farms has significantly reduced, resulting in around 250,000 new panel constructions. 

The UK remains one of the pioneers of renewable technology adoption in Europe. If they are to reach their climate goals, though, it is imperative that the country does not depend on gas-fired power generation. However, the use of renewables also suffers from criticisms about financial sustainability, as the need to upgrade grids can add to long-term costs, with Shadow Energy Secretary Claire Coutinho warning people about the additional expenses. On the other hand, UCL Professor of Energy and Climate Change Michael Grubb suggests reforming how consumers access renewable-generated power can deliver real bill reductions.