When Extreme Heat Threatens Europe's Nuclear Power
Warm rivers and low water levels are forcing nuclear power plants to reduce output across Europe.
The Danube's reduced water levels have exposed the dependence of Hungary's Paks nuclear power station on local conditions, with only one of four units currently operational. Meanwhile, France, which relies heavily on nuclear power, faces significant challenges during heat waves. In 2003, French nuclear power plants had to temporarily cut output by over six gigawatts during extreme heat, representing up to one-fifth of their normal capacity.
While France generally remains an electricity exporter despite these restrictions, the impact on grid stability and short-term price surges is critical. Heat waves exacerbate electricity demand due to air conditioning, and declining reserves from abroad further complicate the situation. Nuclear power plants discharge waste heat into rivers, and low water levels lead to rising water temperatures, harming aquatic life.
French authorities occasionally exempt plants from temperature limits, allowing for temporary increased output. However, climate-related downtime could triple or quadruple by 2050, necessitating substantial investments in heat-resistant measures.
Written by urgent.news from Tempo.co English's reporting — not their text. Machine-written — may contain errors; check the original before relying on it.
