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

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 […]

Time to Put Ontario’s Planning for Low-Carbon Energy Security into High Gear

Time to Put Ontario’s Planning for Low-Carbon Energy Security into High Gear The impacts of a “once in a generation” North America-wide storm and continuing geopolitical conflicts provide stark reminders of the growing importance of low-carbon energy security. Without it, governments around the world recognize the impossibility of achieving net zero, critical for the fight […]

PWU Input to the Electrification and Energy Transition Panel re: IESO Pathways to Decarbonization

Submission to the Electrification and Energy Transition Panel re: IESO Pathways to Decarbonization, January 2023 The IESO has recently released its Annual Planning Outlook (APO) and Pathways to Decarbonization study. These new IESO documents underscore an urgent lingering risk to Ontario’s system reliability that must be addressed as the IESO continues to under-estimate Ontario’s electricity […]

Power Works – Winter Newsletter 2022

This past year has been a blur, leaving as quickly as it came. Looking back on what has been accomplished in 2022, I am proud of all the PWU members who have persevered through almost 3 years of a global pandemic and kept on generating, transmitting, and distributing reliable electricity to Ontario. We are indeed […]

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