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Heatwave Slashes French Nuclear, Boosts European Power Prices

8/12/2026

43 6 Full Breakdown

Summary

Story summary

France heatwave cut nuclear output 7.3 GW, raising day-ahead prices 21.8% to €142.5/MWh.
EDF said the heatwave will take reactors offline and restrict others, limiting generation by 7.3 GW.
German day-ahead contracts rose 22.8% to €138.50/MWh as wind output is expected to fall to 4.7 GW, about 60% below average, prompting more gas-turbine use amid fuel-cost rises from Strait of Hormuz disruptions.

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Story summary

France heatwave cut nuclear output 7.3 GW, raising day-ahead prices 21.8% to €142.5/MWh.
EDF said the heatwave will take reactors offline and restrict others, limiting generation by 7.3 GW.
German day-ahead contracts rose 22.8% to €138.50/MWh as wind output is expected to fall to 4.7 GW, about 60% below average, prompting more gas-turbine use amid fuel-cost rises from Strait of Hormuz disruptions.