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Czechs extend lifespan of major nuclear plant by 20 years, second plant under review

Published by Global Banking & Finance Review

Posted on April 9, 2026

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· Last updated: April 10, 2026

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Czechs extend lifespan of major nuclear plant by 20 years, second plant under review
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PRAGUE, April 9 (Reuters) - The Czech Republic will extend the lifespan of the existing four units of the Dukovany nuclear power plant by 20 years, to 80 years, and keep them running until 2065-2067,

Czechs Extend Dukovany Nuclear Plant Operation to 2065-2067, Review Underway for Second Facility

Extension of Dukovany Nuclear Plant Lifespan and Future Plans

Dukovany Nuclear Plant Lifespan Extension

PRAGUE, April 9 (Reuters) - The Czech Republic will extend the lifespan of the existing four units of the Dukovany nuclear power plant by 20 years, to 80 years, and keep them running until 2065-2067, Industry and Trade Minister Karel Havlicek said on Thursday.

Plant Background and Capacity

Dukovany, owned by the majority state-owned power company CEZ, was opened in 1985-1987 and its Soviet-designed VVER reactors have capacity of just over 2,000 megawatts.

International Context and Energy Security

The decision follows some other nuclear plant lifespan extensions, especially in France, as countries look to secure sufficient supplies after the gradual end of fossil fuels.

Integration with New Units

The decision means that for an extended period the old units will be running alongside two new 1,000-megawatt  units to be built at the Dukovany site under a contract with South Korea's KHNP by the late 2030s.

Review of Temelin Nuclear Plant and Future Developments

Temelin Nuclear Plant Lifespan Review

CEZ Chief Executive Daniel Benes said a similar analysis on extending the operating life was underway for CEZ's second nuclear power plant Temelin, which operates two 1,086-megawatt units.

Small Modular Reactors and International Partnerships

CEZ is also looking at building several new-generation small modular reactors, and has taken a minority stake in a unit of Britain's Rolls Royce developing the reactors.

Energy Production and Coal Phase-Out

The Czech Republic depends mostly on nuclear and coal plants for electricity production, with coal units expected to be phased out by around 2030, although the current government as been keen to keep some coal capacity running to ensure energy security.

(Reporting by Jan Lopatka, editing by Jason Hovet and Chizu Nomiyama )

Key Takeaways

  • Dukovany’s four Soviet‑designed VVER reactors, operational since 1985–1987, will now run into the mid‑2060s following safety and modernization upgrades. Estimation aligns with the US practice of 80‑year nuclear lifespans. (neimagazine.com)
  • CEZ also acquired a ~20 % stake in Rolls‑Royce SMR, enabling deployment of up to 3 GW of SMR capacity in Czechia by mid‑2030s and complementing new large reactors from KHNP at Dukovany. (apnews.com)

References

Frequently Asked Questions

How long will the Dukovany nuclear plant operate after the extension?
The Dukovany nuclear plant will operate for an additional 20 years, until 2065-2067.
Who owns the Dukovany nuclear power plant?
Dukovany is owned by CEZ, a majority state-owned power company in the Czech Republic.
Is there a review for extending another Czech nuclear plant's lifespan?
Yes, a similar analysis is underway to extend the operating life of the Temelin nuclear power plant.
Why is the Czech Republic extending nuclear plant lifespans?
The extension aims to secure sufficient electricity supplies after the gradual end of fossil fuels.
What is the Czech Republic's plan for coal and nuclear electricity?
Coal plants are expected to be phased out by 2030, while nuclear will remain a primary energy source.

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