State of the Climate Report for the UK Energy Sector 2024-25

This report explores how meteorological conditions impacted the UK energy sector between April 2024 and April 2025. It also explains historical context for a variety of climate and energy-relevant variables. This report provides a focused assessment of how weather affects the energy sector and complements the annual “State of the UK Climate” publication (Kendon, 2025), which reviews the meteorology of the past calendar year and puts it into a climatological context. Impacts such as damage to infrastructure and disruption to supply during summer and winter are discussed. The report analyses the impact of named storms such as Darragh and Éowyn which caused localised power cuts from damage to infrastructure resulting from high winds and flooding. The report also describes the low wind events in November 2024 and January 2025 which were associated with reductions in renewable energy generation, greater reliance on gas generation and imported energy, and price increases. This report provides an accessible and up-to-date assessment of how extreme weather impacts the UK energy sector, using state-of-the-art weather reanalysis datasets, electricity system fault data, and electricity market data.