Gösgen nuclear plant triggers automatic reactor shutdown after voltage dip
The Gösgen nuclear power station automatically shut down its reactor on Tuesday morning due to an under-voltage on control busbars, with no additional radiation released.
On Tuesday morning the Gösgen nuclear power plant experienced an under-voltage incident on its control busbars, prompting an automatic reactor scram. The plant’s operators confirmed that all safety-critical systems functioned correctly and that the reactor is now in a secure shutdown state. No additional release of radioactivity was observed following the event.
The Federal Nuclear Safety Inspectorate (Ensi) received immediate notification of the incident. Authorities will assess the situation and grant permission before the plant can be brought back online. The incident underscores the plant’s built-in safety mechanisms and the regulatory oversight in place.
Why it matters
It shows nuclear safety systems can automatically contain faults without releasing radiation.
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