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

Nuclear safety and emergency preparedness

Exercise Unified Command

Ontario Power Generation (OPG) and partner organizations are participating in a nuclear emergency response exercise at the Pickering Nuclear Generating Station Sept. 27-28, 2023.

During this multi-day exercise, OPG, the Region of Durham, City of Pickering, City of Toronto and various other provincial and federal government agencies will work together to test the interoperability and elements of their respective response plans during a simulated incident. The Canadian Nuclear Safety Commission (CNSC), which is responsible for regulating nuclear stations in Canada, will observe the exercise and provide feedback to OPG.

Lessons learned from the exercise will be used to update response plans and reinforce collective emergency response preparedness at all levels.

Exercise Unified Command – OPG Emergency Preparedness

Preparedness = power

At Ontario Power Generation (OPG), we believe there is no such thing as being too prepared.

See how we build safety into every step of our energy production and learn about the comprehensive emergency preparedness plans for Ontarians.

Strictest safety standards

Our stations operate inside the strictest of standards and regulatory requirements to ensure our communities are always safe.

OPG is responsible for developing and maintaining Emergency Plans that would be used in the very unlikely event of a nuclear emergency. We ensure responses to any given number of emergency scenarios are tested on a regular basis. And we plan for the future by responsibly and effectively managing the energy needs and safety concerns of Ontarians.

OPG is a prudent partner in Ontario’s safe energy production, which is why emergency preparedness is part of every facility’s plan.

What you can expect

In the unlikely event of a nuclear accident, OPG would notify local and provincial governments within fifteen minutes, and provincial/regional officials would then notify the public of next steps in any impacted areas through sirens, automated phone calls, and widespread announcements via the National Public Alerting system, radio, TV, social media, and the web.

Keeping you safe

Everyone has a role to play

See how nuclear safety includes our partners, communities and regulatory bodies working together.

Province of Ontario

Emergency Management Ontario, is responsible for public safety during nuclear emergencies.

This agency administers the Provincial Nuclear Emergency Response Plan and has overall responsibility for managing the off-site response to nuclear emergencies. If a nuclear emergency were to take place, the provincial government would determine the appropriate level of public action.

Region of Durham

Through the Durham Emergency Management Office, local municipalities have emergency plans in place to implement the provincial plan.

Importantly, it is their emergency responders, police, fire and ambulance crews who make sure the emergency plans are implemented properly.

Local residents

Residents near nuclear facilities are responsible for being informed, and knowing what to do in the unlikely event of an emergency.

If an emergency occurs, the province alerts people through a combination of sirens, automated telephone messages and radio, television and social media alerts in the area.

KI pills and emergency awareness kits

Potassium iodide (KI) pills are a key component to keeping you and your family safe in the unlikely event of an accident.

All homes and businesses within 10 km of nuclear facilities are encouraged to have KI pills on hand. Anyone within 50 km of nuclear facilities is welcome to order KI pills for delivery.

In addition, OPG and our partners assembled an Emergency Awareness Kit containing an updated nuclear safety brochure, a pen light and an emergency checklist magnet. All are contained in a durable folio box, which has room to conveniently store your KI pills.

In 2017, these Emergency Awareness Kits were mailed out to all residents and businesses within a 10 km radius of both the Pickering and Darlington nuclear generating stations.

If you did not receive your kit, please contact us by email through the form at the bottom of this web page.

Illustration of a hand holding a box of Ki Pills.

Prepare to be safe

In the highly unlikely event of a nuclear accident, a potassium iodide (KI) pill is a key component to keeping you and your family safe.

Nuclear Safety Brochure (PDF)

Durham Emergency Management Office (DEMO)

Durham Region Emergency Public Alerting System

City of Pickering Emergency Management

City of Toronto Public Safety and Alerts

A view of the Pickering Nuclear Generating Station with greenery in the foreground

Pickering NGS Development of Evacuation Time Estimates

Darlington NGS Development of Evacuation Time Estimates

Municipality of Clarington Emergency Planning

City of Oshawa Emergency Management

CNSC Emergency Management and Nuclear Safety