Projects / prj-darlington-bwrx-units-2-4
Darlington BWRX-300 Units 2-4
The Darlington New Nuclear Project covers up to four BWRX-300 reactors under a licence to prepare site; only Unit 1 has a licence to construct. OPG plans three further units, for which a construction application may follow. Unit 1 is a separate record. Output is not stored.
- Stage
- Siting
- Design
- BWRX-300 (SMR)
- Technology
- Boiling water reactor (BWR) · light_water
- Operator(s)
- Ontario Power Generation
- Vendor(s)
- GE Vernova Hitachi Nuclear Energy
- Location
- Darlington New Nuclear Project site · Canada · precision: exact
Existing Darlington nuclear campus; coordinates approximate to plant area, not HQ. - Coordinates
- 43.8725, -78.7197
- Electrical capacity
- — · scope: plant
- Thermal capacity
- —
- Modules planned
- 3
- Inclusion basis
- smr_by_vendor_claim_with_capacity_check
- Confidence
- medium
- Last verified
- 2026-10-02 (publication/verification date)
Milestones & dated events
- No dated milestones recorded yet.
Regulatory actions
- None recorded in this release.
Sources
- CNSC: Darlington New Nuclear Project (regulator_primary, accessed 2026-10-02)
- WNN: OPG applies for operating licence for BWRX-300 SMR (reputable_press, accessed 2026-10-02)