Finance
Uniper again delays restart of Swedish nuclear reactor
Published by Global Banking & Finance Review®
Posted on May 6, 2025
1 min readLast updated: January 24, 2026
Quick Summary
Uniper has postponed the restart of Sweden's Oskarshamn 3 nuclear reactor to August 15 due to a damaged pipe discovered during maintenance.
Uniper Postpones Swedish Nuclear Reactor Restart Until August
OSLO (Reuters) - Uniper has extended an outage at Sweden's Oskarshamn 3 nuclear reactor until August 15 to repair a broken pipe, the company said on Tuesday.
The 40-year old reactor, which has an installed power capacity of 1,400 megawatts, has been offline since March 29 for its planned yearly maintenance and refuelling.
It was originally scheduled to return to service on April 18 but this was later postponed by two months to June 15.
The ongoing maintenance has revealed that a pipe in the plant was damaged and a plan is now in place for how to repair it, a company spokesperson said without elaborating.
(Reporting by Terje Solsvik and Nora Buli, Editing by Louise Heavens)
Key Takeaways
- •Uniper delays Oskarshamn 3 reactor restart to August 15.
- •The reactor has been offline since March 29 for maintenance.
- •A damaged pipe was discovered during ongoing maintenance.
- •The reactor has a power capacity of 1,400 megawatts.
- •The delay affects Sweden's energy supply.
Frequently Asked Questions about Uniper again delays restart of Swedish nuclear reactor
1What is the main topic?
The main topic is the delay in restarting Uniper's Oskarshamn 3 nuclear reactor in Sweden due to maintenance issues.
2Why was the reactor restart delayed?
The restart was delayed to August 15 because a damaged pipe was discovered during maintenance.
3What is the capacity of the Oskarshamn 3 reactor?
The Oskarshamn 3 reactor has an installed power capacity of 1,400 megawatts.
