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Record renewable generation signals new phase of UK’s energy transition

The latest Energy Trends figures from the Department for Energy Security and Net Zero show that renewable electricity generation reached a record 43.7 TWh in the first quarter of 2026, up 18% on the same period last year and accounting for 53.1% of total UK electricity generation.

The data also highlights the continued shift towards a low carbon electricity system, with low carbon generation accounting for 63.8% of total generation, while fossil fuel generation fell 16% compared to the first quarter of 2025.

Ben Sheppard, Infrastructure & Energy Partner at law firm Walker Morris, said: “The latest Energy Trends figures mark a significant milestone in the UK’s energy transition. Renewable electricity generation reached record levels and accounted for more than half of total electricity generation in Q1 2026, reflecting the growing role of clean power in the UK’s energy mix. This coupled with the increasing electrification of transport, reinforces the importance of continued investment in clean energy and the infrastructure needed to support it.

“However, as renewables continue to increase their share of generation, challenges remain. The focus is shifting from how to generate clean power to integrating it efficiently into the energy system. Grid capacity, network reinforcement, energy storage and system flexibility will all play a key role in ensuring the UK can maximise the benefits of its growing renewable energy capacity.”

He added: “More positively, the continued growth in renewable generation demonstrates that investment in clean energy is delivering substantial results. The long-term success of the UK’s energy transition will be determined by how quickly the infrastructure supporting that growth can be planned, funded and delivered.”