The Power Workers’ Union (PWU), is a proud Canadian union and, by far, the largest, most progressive and successful union in Ontario’s electricity sector.

power workers’ union


Ontario’s Largest Electricity Sector Union

The PWU, one of Canada’s strongest, most democratic and progressive unions, is a knowledgeable and experienced player in the energy sector.

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safe working conditions

We take workplace health and safety very seriously at the Power Workers’ Union. Our Joint Health and Safety Committee Members are trained to know what to do if a PWU member needs help.

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we help keep the lights on

We are committed to delivering a promising future for our membership and continuing to help keep the lights on for all Ontarians.

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Recent Submissions, Newsletters and News

PWU Supports One of Canada’s Largest Public Health Vaccination Centre’s in Peel Region
Power Works – Spring Newsletter 2021

Seventy-five years ago, 2,600 employees at the Hydro Electric Power Commission of Ontario decided to join forces and become a Union. When I look at the challenges we have faced together over the last 12 months, I think it is very fitting that this year marks the PWU’s 75th Anniversary. The past year has demonstrated […]

PWU to the Update to the Ministry of Transportation’s Statement of Environmental Values

The PWU supports a sustainable, environmentally-responsible transportation sector that includes addressing climate change as a priority. We are encouraged by the Ministry’s shared vision and support the Ministry’s initiative to update their Statement of Environmental Values (SEV). Download PDF

CNSC Submission to Renew the Darlington Site Preparation License – May 2021

Supporting the CNSC recommendation to extend the Power Reactor Site Preparation License for the Darlington New Nuclear Project. A renewed license will permit OPG to continue the process of planning and development of new nuclear generation at the Darlington site. View PDF

Submission on Ontario’s Long Term Energy Planning Framework

Ontario’s commitment to replace Pickering with renewed natural gas-fired generation contracts is increasing emissions and putting the reliability of the electricity system at risk. In this submission to the government’s energy planning reform consultation, the PWU recommends placing environment, jobs, and energy security at the top of the procurement agenda, and seriously considering how new […]

Submission on IESO’s Resource Adequacy Engagement – March 2021

With Pickering Nuclear ceasing operations in 2025 and new procurement mechanisms not being ready until that year, Ontario risks being left without cost-effective, viable supply solutions. In this submission, the PWU recommends IESO accelerate the procurement timeline for new low-emitting resources, and seek solutions to broader system needs beyond capacity alone. View PDF

better energy choices

why pwu?

The PWU is the largest and most successful union in Ontario’s electricity sector.



Ontario’s electricity sector has faced numerous tumultuous policy shifts in the last 20 years. Predicting these shifts, influencing them positively where possible and adapting innovatively and intelligently – all in ways that create the most opportunities for sustainable, high-pay, high-skill jobs are products of many decades of organizational experience in the PWU.


proven track record

The PWU has a proven track record of strong union representation and bargaining quality collective agreements with excellent pay rates, job security provisions, working conditions, pensions and benefits―without work stoppages. That’s why we are Ontario’s largest electricity sector union.



The PWU provides extensive union based training to new members, Stewards, Chief Stewards and Health and Safety Representatives. Our union is financially strong, based on solid democratic principles and is supported by dedicated, knowledgeable and experienced elected representatives and support staff.

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