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OPG / GE-Hitachi BWRX-300, Darlington
Clarington (Ontario), Canada43.87°N 78.72°W
computed criticality11/100
reading
First grid-scale SMR authorised in the G7 (April 2025)
2025Fault line
The Western lead unit of the SMR, Darlington tests the promise of modularity: four BWRX-300s are planned. The project nonetheless inherits all the dependencies of the cycle, Western enrichment under strain, scarce heavy forges, and its actual cost will set the commercial fate of SMRs in the G7.
Actors
Ontario Power Generation (Toronto)
GE Hitachi Nuclear Energy (Wilmington)
CNSC (Ottawa)
Depends on 1
Urenco, Almelo & the Gronau / Capenhurst / Eunice networkNuclear · Critical anchor↗Sources