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 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

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.

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.

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.

Hydroelectric Water Portal (water.opg.com)

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

News & resources

Watt’s New
In our revamped e-newsletter, find out how we're helping electrify Ontario while strengthening its economy, communities, and the environment.
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
- Initiatives
- Subsidiaries

Southern Ontario – Durham Region

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Durham Region in Southern Ontario is home to Ontario Power Generation's (OPG's) two nuclear stations — the Darlington Nuclear Generating Station and the Pickering Nuclear Generating Station. These stations have a combined generating capacity of about 5,600 megawatts and provide Ontarians with about 35% of their electricity needs.

See how we are a part of Durham Region and learn about our many local programs, initiatives, and events.

Upcoming events

Jan

Electrifying Education Presentations

Sessions available until July 1, 2025

In person

A child at a desk in a classroom raises his hand to ask a question.

Apr

Public Information Session: Exploring New Nuclear Generation at Wesleyville

Multiple sessions, Apr. 23-29, 2025

Various locations - see schedule

Featured issue

Online newsletter

Watt's New | April 2025

Introducing OPG’s inaugural issue of Watt’s New. In this revamped e-newsletter experience, learn more about how OPG is electrifying life.

Community news

A young girl pets an armadillo during the Diversity of Living Things show at the R.H. Saunders Hydro Dam Visitor Centre.

Our stories · 8 min read

Families enjoy March Break fun at OPG

It was a March Break to remember for almost 3,000 community members in Cornwall and Durham Region.

Jade Lynn Woods is a Project Lead with the Darlington Nuclear Projects team and a member of Curve Lake First Nation.

Our stories · 9 min read

Jade Lynn Woods championing Indigenous opportunities at OPG

OPG’s Jade Lynn Woods is working to give back to the program that helped pave the way for her return to the energy industry.

Darlington Nuclear Generation Station Unit 4 Reactivity Deck

News update · 12 min read

Darlington Refurbishment performance update - Q4 2024

The project is in year nine of its 10-year execution phase, exceeding all safety, quality, schedule, and financial forecasts.

Results 1-3 of 355

Neighbours Newsletter

Timmons staff take part in the GOOP vendor hall

News update · 18 min read

Neighbours - Pickering/ Darlington - Spring 2025

Read the latest issue of OPG's Neighbours Newsletter for the Pickering and Darlington Nuclear Generating Stations.

Results 1-1 of 9

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Key projects and initiatives

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Pelly and his besties on a tandem bicycle

Meet Pelly

Pelly is a uranium pellet who loves powering nuclear generation, bananas, and hanging out with his besties.

Illustration of a hand holding a box of Ki Pills.

Preparedness = Power

The Canadian Nuclear Safety Commission requires that all homes and businesses within 10 km of a nuclear power station receive a supply of potassium iodide (KI) pills.

An aerial view of Darlington Nuclear Generating Station.

At OPG, we have a purpose that goes beyond generating clean, reliable, low-cost power – we’re helping generate a stronger, cleaner, more prosperous Ontario.

Generating power with purpose

Our role in Ontario isn’t just measured by kilowatts (although we’re really good at producing them); it’s measured by our relationships, the impact we make and the future we leave to the next generation. That’s why we strive to be good corporate citizens who care about the environmental, economic, and social wellbeing of all Ontario.

The Power for Change Project

OPG believes our power can help change the world, and not just by electrifying economies. This 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.

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Environmental initiatives

Protecting biodiversity and habitats in Durham Region.

Our generation in Durham Region

Facility type:
Region:
Nearest city/town:
Located on:
Units:
In service date:
Capacity:
More info:

The interior of the Darlington Nuclear Information Centre.

Darlington Nuclear visitor centre

1855 Energy Drive
Courtice, ON L1E 0E7

Open Monday to Friday (excluding holidays)
9 a.m. to 3:30 p.m.

Phone: 905-623-7122
Toll Free: 1-800-461-0034

An exterior shot of the Pickering Nuclear Information Centre.

Pickering Nuclear visitor centre

1675 Montgomery Park Road
Pickering, Ontario

Open Monday to Friday (excluding holidays)
9 a.m. to 3:30 p.m.

Phone: 905-837-7272

Email: Please use our contact us form

Darlington Community Advisory Council

The Council (formerly known as the Darlington Nuclear Site Planning Committee), was formed around 1992. Its membership represents a large number of sectors in the community including community associations, municipal government, health, the environment, education, youth, business, and members at large. All members live or work in an area from Clarington to Oshawa and all serve on a volunteer basis without compensation.

Purpose and terms of reference

The purpose of the Council is to provide direct advice to the Senior Vice President of Darlington Nuclear on subjects of interest and concern to the community related to operations at the site. Primary areas of discussion include the environment, public health and safety, and the economy.

The Council meets six to eight times a year, with breaks in December and in the summer months. Each meeting is about three hours in duration and presentations are made by experts within the company or by consultants. Members question the presenters and then discuss what they have heard. Agendas are prepared in advance and cover topics of priority interest to the members. Detailed meeting notes are taken and approved by members. All meetings are open to the public and minutes are available on OPG’s website.

Draft Terms of Reference (PDF) have been developed by the Council members and Darlington Nuclear.

Meeting agendas

For meeting agendas prior to Jan. 1, 2020 please contact us through the form below.

Meeting minutes

For meeting agendas prior to Jan. 1, 2020 please contact us through the form below.

Pickering Community Advisory Council

The Community Advisory Council — or CAC — was formed at the beginning of 1999. Its membership represents a large number of sectors in the community from community associations, municipal government, health, the environment, education, youth, business, and members at large. All members live or work in an area from East Toronto to Ajax. They all serve on a volunteer basis without compensation.

Purpose and terms of reference

The purpose of the CAC is to provide direct advice to the Senior Vice President, Pickering Nuclear on subjects of interest and concern to the community related to operations at the site that could have an effect on the community. The subjects fall within three areas where the plant might have impact: the environment, public health and safety and the economy. Broad definitions are used in all three areas.

The Council has met monthly since its formation, with breaks in December and in the summer months. Each meeting lasts for about three hours and sometimes more. Presentations are made by experts within the company or by consultants. Members question the presenters and then discuss what they have heard. The meetings are conducted by a third-party facilitator who acts equally for the members and OPG. Agendas are prepared in advance and cover topics of priority interest to the members. Detailed notes are taken of the meetings and are approved by the members. The meetings are open to the public and minutes are available in public libraries and on opg.com.

Terms of Reference (PDF) have been developed by the Council members and Pickering Nuclear.

Meeting agendas

For meeting agendas prior to Jan. 1, 2020 please contact us through the form below.

Meeting minutes

For meeting minutes prior to Jan. 1, 2020 please contact us through the form below.

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Southern Ontario – Durham Region

Territorial Acknowledgement

Central Ontario

Eastern Ontario

Northeastern Ontario

Northwestern Ontario