TECH Signal 405
Solar Output Rose Up to 17 Percent During European Heatwaves as Demand Spiked
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An Ember analysis found solar generation in European countries rose by up to 17 percent on heatwave days, helping meet electricity demand increases of up to 28 percent that were driven largely by air conditioning.
Solar was the only major power source identified as performing better than usual during heatwaves, while nuclear plants faced shutdowns from jellyfish blockages. This dynamic matters for grid planning as extreme heat events become more frequent and cooling demand grows.
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Solar generation rose up to 17 percent on heatwave days in France and Hungary, five percent in Spain, and held steady in Italy compared to non-heatwave days.
Electricity demand during the late-June heatwave increased up to 28 percent in Italy, 23 percent in Hungary, 14 percent in France, and 13 percent in Spain.
Solar was the only major power source to perform better than usual during heatwaves, while French nuclear plants faced shutdowns from jellyfish.
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