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Heatwave Forces EDF to Curtail Three Nuclear Plants, Raising Prices

6/19/2026

47 10 Full Breakdown

Summary

Story summary

EDF warned three French nuclear plants will face production curbs next week because river temperatures in the Rhone and Garonne are high.
A second spring heatwave is pushing river temperatures up to eight degrees Celsius above normal.
The Saint Alban plant on the Rhone may be affected from June 23.
Analysts say the curbs could raise electricity prices by about five euros per megawatt-hour and cause larger spikes if shutdowns occur.

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Story summary

EDF warned three French nuclear plants will face production curbs next week because river temperatures in the Rhone and Garonne are high.
A second spring heatwave is pushing river temperatures up to eight degrees Celsius above normal.
The Saint Alban plant on the Rhone may be affected from June 23.
Analysts say the curbs could raise electricity prices by about five euros per megawatt-hour and cause larger spikes if shutdowns occur.