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

Redeveloping Kakabeka Falls Generating Station

Kakabeka Falls Generating Station (GS) has been producing clean, renewable electricity for 118 years, making it the second-oldest facility in OPG’s hydroelectric fleet and much of its original equipment from 1906 is still in operation.

This four-unit station generates clean, reliable power at a peak output of about 25 MW – enough to power about 25,000 homes in the Thunder Bay area.

Like all hydroelectric stations, Kakabeka Falls GS has a life expectancy, and is reaching the end of its service life. In preparation, OPG has committed to redeveloping the station to ensure it can continue to reliably generate sustainable energy, while maintaining public safety, optimizing power generation and more efficiently use the available river flows.

Station background

Kakabeka Falls (GS) is located in Northwestern Ontario in the Municipality of Oliver Paipoonge on the eastern bank of the Kaministiquia River, just downstream of Kakabeka Falls and approximately 29 kilometres west of Thunder Bay. The Kakabeka Falls GS is also located within the traditional territory of Fort William First Nation, Red Sky Métis Independent Nation and the Métis Nation of Ontario (Region 2), and within the Kaministiquia River watershed.

Kakabeka Falls GS is owned and operated by OPG. Kakabeka Falls GS is a four-unit hydroelectric power generating facility that is controlled remotely from the Northwest Control Centre in Thunder Bay. The Station includes the following structures:

Powerhouse – approximately 67 m long, 16 m wide, and 9 m high, with an adjoining valve house, machine shop, and switching tower located at the south end.
Four original penstocks – one for each turbine-generation unit composed of riveted steel plate construction.
Surge building – a concrete chamber located just north of the powerhouse with a timber superstructure and overflow weir.
Subsurface aqueduct – an underground concrete pipeline, approximately 1980 m long and 5 m in internal diameter, extending from the intake to the surge tank.
Main control dam and intake.
Other structures – Various access roads, parking areas, and ancillary buildings, as well as debris booms and public safety booms.

The station generates clean, reliable power with enough capacity to power about 25,000 homes.

Project scope

Kakabeka Falls GS is expected to reach ‘end of life’ in 2025. As such, the Station is scheduled for redevelopment. The redevelopment will ensure Kakabeka Falls GS will continue to reliably generate sustainable energy while improving public safety, optimizing power generation, and more efficiently using the available river flows, as per the Water Management Plan.

Redevelopment will extend the station’s operating life by 90 years and increase its generating capacity to approximately 27 MW (a 12% increase). The scope of the project will include the following upgrades:

Construction of a new powerhouse extension upstream of the existing powerhouse.
Replacement of existing generating units with two new Francis-type turbines.
Replacement of existing surge building.
Replacement of existing four penstocks with the installation of two new buried penstocks.

Project status and notices

Detailed design in progress.
Transport Canada Public Notice - Feb. 2025 (PDF)

Project schedule

Construction start – March 2025
Target return to service – 2028

Environmental planning

Waterpower facilities in Ontario are subject to the Environmental Assessment Act (EA Act). The EA Act formally recognizes the Ontario Waterpower Association (OWA) Class EA for Waterpower Projects (May 2022), which provides a planning process that allows waterpower facility proponents to assess potential effects of a waterpower project to the environment.

Section 3.2.1 of the OWA Class EA outlines exemption criteria that apply to waterpower projects. Through discussion with the Ministry of Environment, Conservation and Parks (MECP) they have advised that the Kakabeka Falls GS is defined as a Category A project based on the following criteria:

The Kakabeka Falls GS was constructed in 1906 prior to the EA Act.
The project will have minimal new effects on the environment.
The proposed redevelopment of the GS will result in an increase in nameplate capacity of less than 25%, and the increase in the footprint is less than 25%.
There are no changes to water levels and flows under the existing Water Management Plan (WMP).
There are no changes to the Lake Sturgeon Mitigation Plan.
Best management practices and mitigation measures identified during the environmental permitting process will eliminate or minimize adverse effects from construction.

As a Category A project, the Kakabeka Falls GS is exempt from the EA Act and therefore the OWA Class EA. As a result, the Kakabeka Falls GS Redevelopment project does not trigger an Environmental Assessment.

Although Category A projects under the OWA Class EA do not require consultation, OPG is committed to keeping Indigenous communities, the public, and other key stakeholders informed.

To date, OPG has already completed the following environmental baseline studies to support permitting during the construction phase:

Fisheries
Terrestrial
Physical Environment
Cultural Heritage
Archaeology
Climate Change Workshops

The information collected will inform our understanding of what the current environment looks like today and support efforts to avoid, minimize, or mitigate potential impacts of the proposed project.