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 Submission to the Ministry of Energy (MoE) on IESO’s Pathways to Decarbonization Study, ERO 019-6647, May 2023.

The Ministry of Energy (MoE) is seeking feedback on the IESO’s Pathways to Decarbonization Study (P2D) report and, in particular, the IESO’s “no-regret” recommendations. This submission draws upon previous PWU advice to the government, the OEB and the IESO. There is evident urgency to resolving Ontario’s energy planning framework and initiating the siting and procurement […]

PWU feedback to OEB’s input to the Government on a Regulatory Framework, May 2023

The Ontario Energy Board (OEB) has been asked to provide the Minister of Energy with advice on the role of the OEB affordable, reliable, and sustainable energy system for Ontarians. The PWU supports the Government’s Direction to the OEB as they reflect the PWU’s previous recommendations to the Ministry for Energy. The urgency to make […]

Submission on NRCan Grid Modernization, March 2023

Natural Resources Canada (NRCan) is seeking input on the regulatory and market barrier implications of accelerating the pace of electrification and electricity grid modernization to meet Canada’s net zero goals. The PWU believes that NRCan’s underlying premise is flawed. The real barrier is the timely creation of new low-carbon baseload generation. The existing regulatory framework […]

Canada Needs New Large-Scale Nuclear Generation in Ontario

Canada Needs New Large-Scale Nuclear Generation in Ontario The goal of a circular economy is to “retain and recover as much value as possible from resources by reusing, repairing, refurbishing, remanufacturing, repurposing, or recycling products and materials.” Governments around the world recognize it as a model for tackling the global challenges of climate change, biodiversity […]

Submission on the IESO’s 2023 Annual Acquisition Report Approach, March 2023

The IESO held a webinar on February 23, 2023, discussing the approach for the development of the 2023 Annual Acquisition Report (AAR) and asked for feedback on the risks presented and the potential approach to renewing existing assets to help address those risks. The PWU is concerned that the IESO will not be considering the […]

Time to Accelerate Building New Low-carbon Nuclear Generation in Ontario

Time to Accelerate Building New Low-carbon Nuclear Generation in Ontario For over sixty years, safe, affordable,low-carbon nuclear energy has been the foundation of Ontario’s electricity system and the drivers that made Ontario the center of Canada’s nuclear industry are even more relevant today than they were in the 1950s. Sustaining and growing environmental and economic […]

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.

better energy choices