Swiss Nuclear Power Plants Could Operate Up to 80 Years, New Study Finds

Switzerland is reconsidering the long-term future of its nuclear energy sector after a new government-commissioned study found that two major nuclear power plants could safely operate for up to 80 years.

The report focuses on the Gösgen Nuclear Power Plant and the Leibstadt Nuclear Power Plant, which were previously assumed to have economically viable lifespans of around 60 years.

According to the findings, extending their operational life by an additional 20 years is both technically feasible and largely economically viable, provided that necessary safety upgrades and maintenance investments are carried out.

The study was commissioned following a parliamentary request and has renewed debate about Switzerland’s long-term energy strategy, especially as the country continues to balance climate goals with energy security concerns.

The report suggests that the required modernization investments would likely be justified by continued electricity production, and it states that direct financial support from the government may not be necessary for long-term operation.

Energy industry leaders have supported the findings. Thomas Sieber stated that extending nuclear plant lifespans to 80 years appears technically realistic under proper maintenance and upgrades.

The discussion comes at a time when Switzerland is also reviewing its broader nuclear policy, including debates about whether to lift restrictions on building new nuclear power plants. Rising energy demand, climate change pressures, and geopolitical instability have all contributed to renewed interest in nuclear power across Europe.

If implemented, the extended operation of these plants could play a significant role in ensuring Switzerland’s electricity supply stability in the coming decades.