About us

Ontario Power Generation is a climate change leader with one of the most diverse generating portfolios in North America.

We’re investing in innovative technologies that will drive clean economic renewal –  including transportation electrification, small modular reactors, energy storage, micro grids, and nuclear refurbishment. And we partner with local, environmental and Indigenous groups to improve the well-being of our site communities.

OPG’s diverse, clean and low-cost electricity generation portfolio in Ontario includes:

  • hydroelectric stations
  • nuclear stations
  • a biomass station
  • a dual-fuelled oil and gas station
  • natural gas-fuelled stations owned and operated by wholly-owned subsidiary Atura Power
  • a solar facility

We operate our stations in a safe, transparent and environmentally-responsible manner. This includes protecting and enhancing the local environment, supporting the provincial and local economies and helping make our site communities better places to live, work and play.

OPG also owns a number of additional facilities in Ontario and the United States.

Our role

We’re on the job 24/7/365 producing a reliable supply of power for Ontario.

  • Operations span the province
  • Helping to bring down customer price
  • Publicly-owned and accountable to the Province and Ontarians
  • 9,000+ employees


  • Our generation

    As the province’s leading clean power generator, Ontario Power Generation produces reliable, low-cost power using our diverse mix of generating sources. 

    See how OPG’s purpose goes beyond generating electricity.


See how OPG contributes to local economies and the overall economic strength of the province.


Explore how OPG generates power while protecting and enhancing Ontario’s environment.


Explore how OPG positively impacts communities across Ontario as a good corporate citizen and neighbour.