The Guardian23 Jun 2026Market
Automatically composed with AI from the cited sources
Great Britain’s system operator paid about £470/MWh to secure continental imports during Tuesday’s evening peak, more than six times the £71/MWh average for June last year, as the heatwave raised demand and reduced supply across Europe. German day-ahead power reached €545/MWh, the highest since June 2024, and French prices climbed above €268/MWh, the highest since August 2023. UK gas plants lost roughly 2.5 GW of capacity to ambient-related outages, while wind output fell to 13–15% of the generation mix—half the June 2024 average of 30%—and nuclear output in France was constrained by high river temperatures.