The Gravelines plant in northern France is running at reduced speed, reducing the country's electricity exports. Only one of six reactors is fully operational after jellyfish in the sea clogged cooling water pumps.
At the same time, the European heatwave is driving up demand for cooling.
We are in a very volatile situation and the heatwave creates additional challenges to the resilience of the system, says Eon CEO Leonard Birnbaum.
In addition, tonight's solar eclipse is expected to reduce Europe's electricity production from solar power by around 9.7 gigawatts, which is equivalent to about 10 nuclear reactors, according to calculations from the European Electricity Distribution Organization Entso-e.
