Hydro One selects AtkinsRéalis to expand key substation to power Toronto from new Darlington SMRs

Hydro One Selects AtkinsRéalis for Bowmanville Switching Station Expansion

AtkinsRéalis Group Inc. (TSX: ATRL), a global engineering services and nuclear company, has been appointed by Hydro One Networks Inc., an Ontario-based utility with nearly 10,000 employees, to oversee a multi-year Owner's Engineer mandate to expand the Bowmanville Switching Station.

This substation, located opposite the Darlington Nuclear Generating Station, is being expanded to support the connection of four planned Small Modular Reactors (SMRs) by Ontario Power Generation (OPG) at the nearby Darlington New Nuclear Project site.

"Delivering nation-building energy projects in Canada and around the world has been a hallmark of our work in the Power & Renewables sector for decades," said Ian L. Edwards, President and CEO of AtkinsRéalis.

"Our sector has been involved in marquee projects globally, supported by our centre of excellence in Canada. AtkinsRéalis is perfectly suited to deliver work on this substation, which is a critical link in supplying electricity from the Darlington New Nuclear Project to the people of southern Ontario, including Toronto."

Key Details

Project Importance

The expansion is essential for integrating advanced nuclear technology into Ontario’s power grid, enhancing energy reliability for the region.

AtkinsRéalis’ Role

The company leverages decades of experience in power and renewables to deliver critical infrastructure projects both in Canada and internationally.

Author’s summary: AtkinsRéalis has been chosen by Hydro One to lead the expansion of a key substation, enabling connection of new SMRs to power Toronto and southern Ontario, reinforcing the region’s energy infrastructure.

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Newswire Newswire — 2025-11-06