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.

Low water conditions at the tailrace of Lower Sturgeon hydroelectric generating station.

Hydroelectric Data Portal (water.opg.com)

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
Hydroelectric Water Portal (water.opg.com)

Careers
Investors
Reports
OPG Websites

Hydroelectric development

Modernizing our hydro assets

Ontario Power Generation's (OPG's) 66 hydroelectric power plants on 24 river systems are controlled by 239 dams. One of the benefits of hydropower is that it is a long-lasting, renewable resource. Many of our hydroelectric stations have been operating for the better part of a century.

To continue to generate renewable, low-carbon, and low-cost power at these sites, OPG is investing in upgrading and optimizing its existing hydroelectric assets to meet emerging demand as the province continues to electrify. Redevelopment and optimization opportunities include station refurbishments to modernize facility infrastructure, improve existing generating capacity, uncover additional efficiencies, and, in some cases, redevelop an entire site.

Keeping power affordable

Optimizing our hydroelectric sites takes advantage of existing water management practices and infrastructure to deliver environmental and cost benefits.

An aerial view of Whitedog Falls hydroelectric station.

New hydro development opportunities

In consultation with Indigenous communities, OPG is exploring building new hydroelectric stations in Ontario’s north.

Our hydro redevelopment projects

To continue to generate renewable, low-carbon, and affordable power, OPG is investing in upgrading and optimizing many of its existing hydroelectric assets to meet emerging demand as the province continues to electrify. Redevelopment and optimization opportunities include station refurbishments to modernize facility infrastructure, improve existing generating capacity, uncover additional efficiencies, and, in some cases, redevelop the entire site. Below are some of our latest projects.

An aerial view of Frederick House Lake Dam.

Frederick House Lake Dam rehabilitation

OPG is a world leader in dam safety and is currently rehabilitating the Frederick House Lake Dam.

Low water conditions below Little Long hydroelectric station.

Little Long Dam Safety

Learn more about OPG's project to improve dam safety at the Lower Mattagami River complex.

An aerial view of Smoky Falls Generating Station

Smoky Falls Dam Safety

We're rehabilitating the 100-year-old spillway and sluiceway structures at OPG’s Smoky Falls Generating Station in northeastern Ontario.

A hydroelectric generating station under redevelopment.

Preparing to power tomorrow

Before plans take shape and shovels hit the ground, many of our projects begin with Environmental Assessments (EA) or other regulatory processes. Check out additional renewable projects with dedicated websites supporting these specialized processes.

Related news

OPG's Little Long Dam Safety project in northeastern Ontario is close to completion.

Our stories · 8 min read

OPG’s Little Long Dam Safety Project receives industry recognition of excellence

OPG’s Little Long Dam Safety Project has received the Canadian Dam Association’s (CDA) Constructed Project Award of Excellence for 2024.

Des Joachims Generating Station in the fall.

Our stories · 9 min read

Eight OPG hydro stations to undergo life-extending refurbishments in eastern Ontario

OPG is planning to invest $1 billion over the next 20 years to refurbish 45 generating units at eight hydro stations in eastern Ontario.

Using a sectional barge, workers dismantled the old tailrace deck at OPG's Sir Adam Beck I hydro station before constructing a new, wider deck and related upgrades.

Our stories · 10 min read

Important upgrade taking shape at OPG’s Sir Adam Beck I hydro station

In Niagara Falls, work is almost complete on an important upgrade at one of Canada’s most iconic hydroelectric stations.

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