Our mission, vision & values

As Ontario’s largest clean electricity generator, see how our focus is on generating safe, efficient, and reliable energy.

About

Our partnerships & subsidiaries
Our subsidiaries & partnerships are helping us improve electricity generation, storage, and distribution technology to electrify life in one generation.
Who we are
Powering Ontario
Ontario’s need for power never takes a rest and neither does OPG — we’re on the job 24 hours a day, seven days a week, powering Ontario.
What we do
Public safety
We maintain a long-term commitment to the health, safety and energy needs of Ontarians, and it shows in everything we do.
Our commitments in action
Code of Business Conduct
We operate according to a Code of Business Conduct that ensures safety, integrity and efficiency for Ontario.
Governance & regulation

Workers in hard hats look out from the top of an open stairway before a huge Canadian flag in a nuclear plant.

Our role in the system

Our role is to help build a stronger Ontario by investing in clean, affordable power and energy solutions that help grow Ontario's economy.

Power generation

Nuclear power
Nuclear power plays an important role in Ontario and OPG’s energy mix, and its critical to helping us achieving our net-zero goals.
Our power
Educational resources
We support students and educators by providing learning resources developed specifically for teachers, young people and schools.
Our role in the system
Nuclear safety and emergency preparedness
We build safety into every step of our energy production and about our comprehensive emergency preparedness plans for Ontarians.
Our commitment to safety
- Nuclear safety and emergency preparedness
- Water safety

The pristine turbine hall at Darlington Nuclear Generating Station.

Darlington refurbishment project

Once complete, this project will enable production of clean, safe, low-cost, and emission-free electricity from Darlington for 30 more years.

Projects & services

Darlington SMR
The Darlington site is the only location in Canada licenced for new nuclear with a completed and accepted Environmental Assessment.
Our projects
Clean energy credits
With an extensive portfolio of clean energy generation across North America, OPG can offer environmental credits in both Canada and the US.
Our services
- Electrification services
- Clean energy credits

Ouimet Canyon Provincial Park, Thunder Bay, Ontario

Territorial acknowledgement

We respectfully acknowledge that our facilities are located within the traditional and treaty territory of Indigenous Nations and communities.

Community investment

The Power for Change Project was designed to give back to Ontario and to the communities where we operate, to help build a cleaner, more sustainable future for generations to come.

Communities

Territorial Acknowledgement
- Territorial Acknowledgement
  OPG respectfully acknowledges that the lands on which its generating stations and other assets are located are within the traditional and treaty territory of many Indigenous communities. Click to read more.
Central Ontario
- Central Ontario
  Central Ontario is home to 20 of our hydroelectric facilities, some of which, like our Sills Island Generating Station, have been part of their community for more than one hundred years.
Eastern Ontario
- Eastern Ontario
  Eastern Ontario is host to one gas-fired generating station and 15 of our hydroelectric generating stations on the St. Lawrence, Ottawa and Madawaska Rivers.
Northeastern Ontario
- Northeastern Ontario
  Northeastern Ontario contains 14 of our hydroelectric stations, including several we built or redeveloped through key partnerships with local Indigenous communities.
Northwestern Ontario
- Northwestern Ontario
  Northwestern Ontario hosts 11 of our hydroelectric stations as well as a former coal generating station that we converted to use biomass as fuel.
Southern Ontario - Durham Region
- Southern Ontario - Durham Region
  The golden horseshoe of Southern Ontario is home to key operations including our Darlington and Pickering nuclear stations in Clarington and Pickering.
Southern Ontario - Niagara Region
- Southern Ontario - Niagara Region
  The golden horseshoe of Southern Ontario is home to key operations including our iconic Sir Adam Beck hydroelectric stations in Niagara Falls.
Southwestern Ontario
- Southwestern Ontario
  Southwestern Ontario is host to our NSS - Western Waste Management Facility in Bruce County, our Eugenia hydroelectric station near Meaford, and our Nanticoke Solar Facility on the site of the former Nanticoke coal station.

Rough waters in the tailrace from Barrett Chute hydroelectric station.

Water system data portal

Find water level and flow information from gauges on rivers where OPG operates hydroelectric stations in Ontario.

News & resources

Net-Zero News
A quarterly round-up of stories, news and profiles that highlight our best. See how we’re electrifying life in one generation.
Newsroom
Visitor centres
At our visitor centres, the public is welcomed to see how their power is made and learn about Ontario's low-carbon electricity system.
Educational resources
Water safety
Our commitment to public safety includes making sure people know about the dangers around our hydro stations and dams.
Water system data portal

Careers
Investors
Reports
OPG Websites

Smokestacks fall as the former Nanticoke coal generating station is demolished. The station was closed in 2013 and safely demolished in 2019.

OPG marks 10 years since the closure of its last coal-fired station

10 years since coal closure

One of North America's leading power generators

Ontario Power Generation (OPG) is Ontario’s leader in generating clean, safe, reliable, and low-cost power. We meet about half of the province’s energy needs through a diverse mix of generating assets consisting of hydroelectric stations, nuclear plants, solar, biomass, and natural gas. Our power is building stronger communities, helping to fight climate change, preserving ecological diversity, and bolstering economic growth.

In 2014, we helped complete one of the world’s single-largest actions to combat climate change when we closed the last of our coal-fired generating stations. The end of coal in Ontario led to cleaner air and reduced provincial greenhouse gas emissions by about 17% – the equivalent of taking seven million cars off the road. Today, Ontario’s electricity system stands as one of the cleanest grids in the world. OPG is now building on this achievement through our Climate Change Plan, which outlines our plan to become a net-zero carbon company by 2040. To reach our goals and electrify life in one generation, we are advancing new low-carbon technologies, such as Small Modular Reactors, and building partnerships with Indigenous communities to develop new clean energy projects.

In this section, learn about how OPG is powering Ontario’s clean energy future through one of the world’s most diverse generating fleets.

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Our generation by the numbers

0
megawatts (MW) in-service generating capacity (Dec. 31, 2023)

0
stations in Ontario

9,500
employees supporting Ontario's economy

#1
clean power producer in the province

Our generation portfolio in Ontario

0
hydroelectric stations

2
nuclear stations

1
solar facility

1
biomass station

1
dual-fuelled oil and gas station

0
Atura Power combined-cycle gas turbine stations

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

Our US hydroelectric operations — OPG wholly or jointly owns and operates 85 hydroelectric generating stations and holds minority interests in 14 hydroelectric and two solar facilities in the United States through our US-based wholly-owned subsidiary, Eagle Creek Renewable Energy.
Our gas-fired combined-cycle generating stations — Our subsidiary, Atura Power, is the operator of four combined-cycle gas turbine generating stations located in Ontario.
Bruce nuclear stations — We also own two other nuclear generating stations in Ontario that are leased to Bruce Power L.P.

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An aerial view of Darlington Nuclear Generating Station from afar.

Nuclear power

Nuclear power is virtually carbon-free, generating clean, affordable power 24/7/365. Learn what makes OPG Canada’s nuclear power leader and how this vital energy source strengthens the economy while forming the bedrock of Ontario’s electricity system.

Generating capacity (Dec. 31, 2023): 4,850 MW
Stations: 2
2023 Output: 36.1 TWh