# France Shuts Down Nuclear Reactors to Protect River Ecosystems Amid Heatwave

*France's main energy provider has shut down two nuclear reactors to avoid discharging hot water into already warming rivers during a record-breaking heatwave.*

June 26, 2026 · World

## At a glance

- France shut down two nuclear reactors to protect river ecosystems during a heatwave.
- The EDF energy group halted operations at reactors in Nogent-sur-Seine and Bugey.
- Nuclear power accounts for almost 70% of France's electricity production.
- French grid operator RTE assures sufficient generation capacity despite outages.
- Record-breaking heatwave in Europe prompted these environmental measures.

France's main energy provider has shut down two nuclear reactors as a precautionary environmental measure to avoid discharging too much hot water into rivers already warming in a record-breaking heatwave. The EDF energy group temporarily halted operations at reactors in Nogent-sur-Seine on the Seine river and in Bugey on the Rhone near Lyon to comply with temperature limits. This action is part of broader efforts to meet environmental obligations designed to protect aquatic plant and animal life in waterways used to cool nuclear facilities.

## Environmental Protection Measures

Power plants critical to France's electricity production use river water to cool their reactors, which heats the water before it is released back into the river. During heatwaves, rising river temperatures can force EDF to reduce or even cut production to prevent further warming of the rivers with discharges of cooling water, which can be several degrees warmer depending on the site.

## Impact on Electricity Production

Nuclear power stations produced almost 70 percent of France's electricity last year. Despite the shutdowns, French grid operator RTE assured that the country has sufficient generation capacity to meet electricity demand, even in the event of outages at certain production facilities. EDF had already shut down a reactor at the Golfech plant in southwestern France on the Garonne river and reduced output at other sites.

## Heatwave Context

France has been hit hard by a deadly record-breaking heatwave sweeping Europe. These extreme weather conditions have necessitated unprecedented measures to balance energy production with environmental protection.

## Sources

- BSS

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Source: https://pulsetoday.com.bd/en/world/france-shuts-down-nuclear-reactors-heatwave-precaution