Bruce Power completes Unit 3 defueling milestone ahead of schedule

Crews at Bruce Power have completed the Unit 3 defueling milestone 16 days ahead of schedule.

The 27-day defuel program, which saw 5,748 fuel bundles removed from Unit 3’s reactor core, was completed 31 days faster than the same program on the Unit 6 MCR. Process improvements and lessons learned from our Unit 6 MCR enabled innovations that enhanced performance efficiencies. 

“This remarkable achievement has been realized primarily due to the extraordinary planning and innovation put into place in Unit 3,” said Mike Rencheck, Bruce Power’s President and CEO. “Learning lessons during Unit 6’s MCR, leveraging the ideas and experiences of staff and investing in innovative tooling has allowed us to find efficiencies and this builds on the successful momentum of our Life-Extension Program overall.”

Bruce Power is now preparing for bulkhead installation and the Primary Heat Transport (PHT) system ‘drain and dry’ as the next steps in the project prior to starting construction activity, which begins with major component disassembly. 

The Unit 3 MCR is the second refurbishment project in the company’s Life-Extension Program to extend the operational lives of Units 3-8 on the Bruce Power site to 2064. Unit 6, which began its MCR on Jan. 1, 2020, is expected to return to service later this year, on target.

About Bruce Power

Bruce Power is an electricity company based in Bruce County, Ontario. We are powered by our people. Our 4,200 employees are the foundation of our accomplishments and are proud of the role they play in safely delivering clean, reliable nuclear power to families and businesses across the province and life-saving medical isotopes around the world. Bruce Power has worked hard to build strong roots in Ontario and is committed to protecting the environment and supporting the communities in which we live. Formed in 2001, Bruce Power is a Canadian-owned partnership of TC Energy, OMERS, the Power Workers’ Union and The Society of United Professionals. Learn more at and follow us on Facebook, Twitter, LinkedIn, Instagram and YouTube.

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John Peevers – 519-386-3799 –