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

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

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

Territorial acknowledgement

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

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.

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

Hydroelectric development

Modernizing our hydro assets

Ontario Power Generation's (OPG's) 66 hydroelectric power plants on 24 river systems are controlled by 240 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 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. Below are some of our latest projects already underway.

Calabogie redevelopment

We've redeveloped our Calabogie generating station to increase its capacity and extend its lifespan and efficiency for years to come.

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.

Projects in planning

Coniston Redevelopment

After more than 100 years of generating clean power for the province, Coniston GS has reached the end of its operating life. This proposed redevelopment project – located on the Wanapitei River in the City of Greater Sudbury – involves redeveloping the two-unit station to increase its capacity up to six megawatts. This project will increase the amount of clean power available for Ontario and help reduce carbon emissions across the province.

Stinson Life Extension

This proposed redevelopment project will extend the operating life of Stinson GS – a two-unit station located upstream from Coniston GS on the Wanapitei River in the City of Greater Sudbury. New generating equipment will utilize available river flows more efficiently, increase the availability of clean power, and extend the station’s operating life by approximately 40 years.

Kakabeka Falls Life Extension

This proposed project will extend the operating life of Kakabeka Falls GS – a four-unit station on the Kaministiquia River near Thunder Bay. Proposed upgrades will help the station optimize power generation with an increased output of up to 27 megawatts. Upgrades would ensure the station continues generating reliable electricity for another 90 years, while also improving public safety and using available water flows more efficiently.

Bingham Chute Life Extension

After nearly 100 years of operation, Bingham Chute GS – a two-unit station on the South River near North Bay – is approaching the end of its operating life. Proposed upgrades would enhance the performance of the station’s equipment, and potentially double the station’s average yearly output of clean, renewable power for Ontario.

Related news

Workers are seen using a suspended ladder and safety harnesses as they replace insulators that have reached the end of their service life at Sir Adam Beck II Generating Station in Niagara Falls.

Our stories · 11 min read

Workers traverse heights to successfully complete high-voltage line replacement at Sir Adam Beck II station

At Sir Adam Beck II GS, OPG successfully completed a project to replace a string of high-voltage power lines across five transmission towers.

Our stories · 11 min read

OPG goes 3D: Innovative virtual scans of generating stations paying major dividends

What began as a digital pilot project in 2017 has now morphed into an integral part of OPG’s operations and its future.

OPG's Barrett Chute hydro station in eastern Ontario.

Our stories · 10 min read

Barrett Chute hydro station now halfway through major unit overhauls

On the Madawaska River, OPG’s Barrett Chute Generating Station is now halfway through a major overhaul of its generating units.

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