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France Shuts Off More Nuclear Power as Heat Builds Across Europe - Bloomberghttps://www.bloomberg.com/news/articles/2026-07-30/france-shuts-off-more-nuclear-power-as-heat-builds-across-europe❝ Electricite de France SA shut down the Golfech-2 nuclear reactor in southern France as a blistering heat wave pushes temperatures toward 40C across parts of Europe.
The Golfech shutdown is the latest in a record number of heat-related outages across France’s nuclear fleet this summer, curbing output from the backbone of Europe’s electricity system. EDF has also warned that the Tricastin plant could face production cuts overnight as soaring river temperatures constrain reactor cooling.
Many of France’s nuclear plants rely on river water for cooling before discharging the warmer water back into the river. Environmental regulations limit those discharges when river temperatures are already high, forcing reactors to reduce output.
“The heat wave is a big factor kicking in on French nuclear power,” said Christopher Kurish, portfolio manager at power trader Mind Energy in Denmark. “How long the heat will last is worrisome and if it escalates even more.”
French evening power prices during July have been higher than any other year on record, besides during the energy crisis of 2022. This evening they will hit about €200 per megawatt-hour, according to data from Epex Spot SE, up from a low of about €5 around noon.
Elsewhere, Hungary’s nuclear power plant Paks will cut capacity at block 2 by 50% on Thursday due to low water level of the Danube river, the fourth cut in capacity in two days.
At the same time, German wind power is also set to decline sharply overnight. The country’s fleet of wind farms could produce less than a gigawatt of power early Friday morning before recovering early next week, according to a Bloomberg model. ❞