Companies · Nuclear, fuel and SMR · data

Ontario Power Generation Inc.

OPGUtility, fleet ownerState-owned, unlistedHQ Toronto, Canada

Profile

Ontario Power Generation, a crown corporation owned by the Province of Ontario, operates Darlington (4 CANDU units) and Pickering (4 operating units after the 2024 closure of units 1 and 4): 8 operating units with 5,576 MWe net per the reactor dataset. It is the licensee of the Darlington New Nuclear Project, where the first GE Vernova Hitachi BWRX-300 has been under construction since the April 2025 licence to construct and an operating-licence application was submitted in March 2026 (WNN 2 Apr 2026); the province approved a CAD 20.9 billion four-unit budget in June 2025. OPG also owns the Bruce site, leased to Bruce Power. Unlisted (debt issuer); no market data apply.

Source: data/reactors.csv (WNA/PRIS); data/smr_projects.csv (WNN 2 Apr 2026, CNSC), 9 Oct 2026 · confidence medium

Fleet

Reactors operated: 8
Net capacity: 5,576 MWe
As of: 9 Oct 2026

Source: data/reactors.csv (WNA Reactor Database / IAEA PRIS as republished by WNA, as of 9 Oct 2026); operating units summed per operator/site

Key projects

Key projects from the company record; a map link appears where the project id is in a map dataset.
Project	Country	Stage	Note	Map
Darlington	CAN	Operating	4 operating units, 3,512 MWe net; 1 under construction	open on the map
Pickering	CAN	Operating	4 operating units, 2,064 MWe net; Pickering B refurbishment planned; units 1 and 4 closed 2024	open on the map
GE Vernova Hitachi BWRX-300 - Darlington New Nuclear Project, Clarington, Ontario [owner/licensee]	CAN	Under construction	Regulator stage as of 9 Oct 2026: Licence to Construct issued Apr 2025; Licence to Operate application submitted Mar 2026 (under review, hearing date TBA); hold point 1 (reactor building foundation) lifted 30 Mar 2026	open on the map
GE Vernova Hitachi BWRX-300 - Darlington New Nuclear Project, Clarington, Ontario [owner/licensee]	CAN	Licensed	Regulator stage as of 9 Oct 2026: Covered by the Darlington site licence framework; the April 2025 Licence to Construct covered unit 1 only (construction licence for units 2-4 pending)	open on the map

Deals

Deals naming this company, newest first; each title links to its source. All deals.
Date	Type	Deal	Status	Capacity MW	Value
30 Mar 2026	Licensing milestone	CNSC lifts first hold point for Darlington BWRX-300; OPG applies for 20-year operating licence	Completed	300	20.9 bn CAD
4 Apr 2025	Licensing milestone	CNSC issues licence to construct the first BWRX-300 at Darlington, first SMR construction licence in G7	Completed	300	n/a

Source: deals.json, as of 9 Oct 2026; values as stated by each source, not converted.

Documents

Documents captured on the record: the latest documents and, where present, the technical report.
Document	Type	Date
WNN: OPG applies for operating licence for BWRX-300 SMR	News	2 Apr 2026

Chart

TradingView symbol: n/a · state-owned, unlisted

Market cap, USD: n/a · state-owned, unlisted
Market cap, local: n/a · state-owned, unlisted

Chart: none. No TradingView symbol is on the record (state-owned, unlisted); the dated snapshot is all this page shows.

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