Toronto, Ontario – February 19, 2026 — Aecon Group Inc. has announced a significant milestone in the life-extension of Bruce Power’s nuclear generating station, successfully completing the construction phase of the Unit 3 Major Component Replacement (MCR) project.
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Unit 3 is the second of six units undergoing full component replacement as part of Bruce Power’s broader Life-Extension Program. The company confirmed that the MCR project remains on budget and ahead of schedule, with efforts now focused on refueling and returning the unit to service in the months ahead to support Ontario’s electricity supply.
“I want to congratulate the entire project team and Bruce Power for completing the construction phase on Unit 3 ahead of schedule — another outstanding achievement that reflects our commitment to disciplined execution,” said Aaron Johnson, Senior Vice President, Aecon Nuclear. “This milestone highlights the strength of Aecon and our project partnerships in delivering complex nuclear work safely, with exceptional quality, and cost and schedule performance.”
Aecon delivered the work through two major joint ventures: Shoreline Power Group, a partnership with AtkinsRéalis, and the Steam Generator Replacement Team, a collaboration with Framatome. Together, the partnerships executed one of the most technically demanding nuclear refurbishment projects in Canada.
More than 1,000 Aecon employees, including skilled trades and project specialists, supported the construction phase. The scope of work included the removal and replacement of 480 fuel channels, 960 end fittings, and eight steam generators — all critical components in extending the reactor’s operational life.
“The successful completion of the Unit 3 construction phase is a clear demonstration of Aecon’s commitment to safety-first execution, continuous improvement, and innovation in nuclear refurbishment,” said Steven Gilroy, Vice President, Bruce Power Projects, Aecon Nuclear. “By continually advancing our tooling, processes, and project delivery methods, our teams and partners continue to raise the bar.”
With construction activities complete, Bruce Power will begin refueling Unit 3 with 5,760 fuel bundles later this month. Additional lead-out work and regulatory inspections will follow before the unit reconnects to Ontario’s electricity grid.
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The Life-Extension Program at Bruce Power is considered one of Canada’s largest clean energy infrastructure initiatives. By refurbishing existing reactors, Ontario aims to secure long-term, low-carbon electricity generation while supporting thousands of jobs across the province.
Aecon, publicly traded on the Toronto Stock Exchange under the symbol ARE, continues to expand its role in nuclear, civil infrastructure, transportation, and industrial construction projects across North America.
The company noted that forward-looking statements regarding final project completion and regulatory approvals remain subject to risks and uncertainties, including supply chain challenges, labor availability, inspection outcomes, and broader market conditions.
Still, the completion of Unit 3’s construction phase marks another major step forward in ensuring reliable, carbon-free power for Ontario’s future.
Originally reported by Aecon.
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