Heatwave expected to cut 15% of France's nuclear capacity Friday

France gets about 70% of its electricity from nuclear power plants, which need cool river water to run safely.

The law says plants cannot make river water too hot, to protect the environment.

When the weather gets very hot, rivers warm up, so nuclear plants have to make less electricity.

Europe has already faced five heatwaves this summer, and the newest one is bringing very hot weather again.

On Friday, six French reactors will be fully stopped, cutting nuclear power by about 15%.

Because there is less power, electricity prices go up.

France also sends less electricity to its neighbours, so countries like Britain and Germany will burn more coal and gas.

There is even some trouble from jellyfish, which blocked the water intake at one nuclear plant, keeping two reactors offline.

Experts say it is the lowest amount of French nuclear power available since August 2023.