nuclear-news

Europe’s electricity system tested by heatwaves as air-conditioning use soars – nuclear power plants affected.

 Record temperatures force temporary shutdowns at power plants.
Europe’s energy systems have come under intense strain this summer as
repeated heatwaves have driven up demand for electricity and forced plants
to pause production. June was the hottest on record in western Europe,
fuelling a rise in the use of air conditioning and prompting a sharp
increase in electricity prices. Most parts of the region experienced at
least two intense periods of heat in June and July, with some suffering
more.

The barrage of heatwaves this summer marked a “massive change”
for Europe’s energy systems, said Jan Rosenow, leader of the energy
programme at Oxford university’s Environmental Change Institute. Peak
electricity demand has historically happened in winter in Europe, but as
“summers get hotter at some point that might flip”, he said. SSE, the
UK power company, said generation from its hydropower plants dropped by 40
per cent quarter on quarter to the end of June, as Britain also grappled
with heatwaves and severe drought. Inland nuclear power plants across
France and Switzerland temporarily suspended or reduced activity earlier in
the summer, as it is harder to cool reactors in hot weather.

In France, 17 out of 18 nuclear power plants faced capacity reductions during the
June-July heatwave, Ember said. Most inland nuclear plants rely on rivers
to cool reactors and spent fuel, heating the water in the process before
discharging it back. But with many rivers already hot, the plants could not
discharge heated water without potentially damaging the river ecology.

 FT 3rd Aug 2025, https://www.ft.com/content/23b3dc59-b40f-48e2-ad93-e301de7ac5f2

August 7, 2025 - Posted by Christina Macpherson | climate change, EUROPE