Home/SMR Projects

Darlington BWRX-300

Approved

Developer: Ontario Power Generation / GE Hitachi Nuclear Energy
Capacity: 300 MWe
Last updated: 4/26/2026

Project overview

Reactor type: BWR
Announced: 3/2/2022
Projected operational: 12/31/2029

Notes

Ontario Power Generation received construction approval for a GE Hitachi BWRX-300 at the Darlington site in April 2025. The CAD 7.7 billion project targets operation by 2029, with three additional units planned for CAD 13.2 billion. Backed by Canada Infrastructure Bank. First grid-connected SMR in the G7.

SMR Brief Pro members also see:

Risk Score: ████████
Opportunity Score: ████████
Score Rationale: ████████
Analyst Notes: ████████
Related News: ████████
Related Companies: ████████
Related Deals: ████████

Get the full intelligence dossier on every SMR project.

More projects in Canada

OPG — Orano Enriched Uranium Fuel Supply Deal

🇨🇦Ontario Power Generation / Orano

Cameco — McArthur River Key Lake Uranium Mine Canada

🇨🇦Cameco Corporation / Orano SA

NexGen Energy — Rook I Project Arrow Deposit Saskatchewan

🇨🇦NexGen Energy Ltd. (TSX/NYSE/ASX: NXE)

Under Construction

Track every SMR project worldwide with SMR Brief Pro