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Ontario Power Generation Inc.
Ontario Power Generation Inc., led by Ken Hartwick, operates 19,400+ MW of nuclear, hydro and renewable generation for Ontario's grid.
Ontario Power Generation Inc.
Ontario Power Generation Inc. was established in 1999 under the Ontario Electricity Act to own and operate the province's electricity generation assets. The corporation is wholly owned by the Province of Ontario, operating as a commercial entity without direct taxpayer subsidies. The company's generation fleet includes the Pickering and Darlington nuclear stations, 66 hydroelectric stations, and growing wind and solar capacity. OPG also owns the regulated Darlington New Nuclear project, targeting small modular reactor deployment by 2028. In 2023, the company announced a $100M investment in a geothermal demonstration project (per OPG, 2023). Its geographic footprint concentrates in Ontario but includes renewable investments across Canada. OPG employs over 10,000 people, with its headquarters in Toronto and operational sites throughout Ontario. The corporation also operates the OPG Charitable Foundation, which donated over $15M to community projects since 2014. In May 2025, OPG and its partners launched the first commercial SMR project at Darlington, under regulatory construction (per OPG, May 2025). OPG's structural differentiator is its crown-corporation status with a commercial mandate — it earns revenue from wholesale electricity markets and regulated rates, unlike a traditional utility. This hybrid structure lets it invest in long-duration assets, such as nuclear refurbishments and grid-scale storage, without short-term shareholder demands.
General information
Firm type
other
Year founded
1999
AUM
Undisclosed
Location
Region
North America
Country
Canada
City
Toronto
Corporate office
Toronto, Ontario, Canada
Principals
Ken Hartwick
President and Chief Executive Officer
Aida Brisson
Executive Vice President and Chief Financial Officer
Sector focus
Frequently asked questions
Who owns Ontario Power Generation Inc.?
OPG is wholly owned by the Province of Ontario, operating as a commercial crown corporation. It reports to the Ontario Legislature through the Minister of Energy.
What types of power generation does OPG operate?
OPG's fleet includes nuclear (Pickering and Darlington stations), 66 hydroelectric stations, and renewable projects including wind, solar, and biomass. Its nuclear capacity accounts for roughly half of the generation.
Is Ontario Power Generation Inc. involved in nuclear new-build?
Yes, OPG leads the Darlington New Nuclear project, which will deploy a GE Hitachi BWRX-300 small modular reactor. Site preparation began in May 2025 (per OPG, May 2025).
Does OPG invest in renewable energy outside Ontario?
OPG's renewables portfolio is primarily concentrated in Ontario, but the company also owns and operates assets in other Canadian provinces and has pursued partnerships for hydroelectric and wind projects.
How does OPG's structure differ from investor-owned utilities?
As a crown corporation, OPG is not publicly traded and does not pay dividends to private shareholders. Profits are reinvested or returned to the provincial government. This allows longer investment horizons.
What is OPG's stance on coal?
OPG eliminated coal-fired generation by 2014, converting its Thunder Bay and Atikokan stations to biomass. The province now generates over 90% of its electricity from zero-carbon sources.
Profile maintained by Altss using OSINT (open-source intelligence), regulatory filings, licensed data partners, and verified direct submissions. Read the methodology. Last updated: . Continuous refresh with full update cycles at least every 30 days.
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