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

Ontario Needs Better Planning to Avoid an Electricity System Crisis

The PWU is launching a series of papers to prompt discussion on better ways for Ontario to meet its growing electricity demand in a lower cost, lower carbon, and more reliable, affordable and timely manner. Download Article Here

PWU Submission on the OEB’s Proposed Amendment to the DSC on Flexible Hosting

The Ontario Energy Board (OEB) prepared a proposed amendment to the DSC to enable electricity flexible hosting capacity arrangements when distributed energy resources (DERs) in aggregate could exceed feeder and/or substation capacity. The PWU agrees in principle with the intent to optimize the capacity available on the distribution system. However, the PWU recommends conducting a […]

Submission on the IESO’s Long-Term 2 (LT2) Request for Proposals (RFP), Jan 15, 2024

The IESO has initiated is LT2 RFP engagement. The PWU finds IESO’s procurement approach is overly complex and replete with planning and analysis deficiencies that underpin unmitigated reliability and affordability risks. The PWU recommends that the IESO expeditiously focus on: comprehensive specification of system needs; understanding the possible solutions; better accommodating long-lead time generation development; […]

NRCan Canada’s Electricity Advisory Council (CEAC) January 2024

Natural Resources Canada (NRCan) is seeking input on barriers to and solutions for achieving Canada’s net zero goals for the electricity sector in order to inform the Canada Electricity Advisory Council (CEAC). The PWU has assembled its previous Federal submissions and recommends the government should: build a national energy vision to align provincial, territorial and […]

IESO Preliminary 2023 Annual Planning Outlook

On December 13, 2023, the IESO provided an overview of its Preliminary 2023 Annual Planning Outlook (APO) forecasts in support of its Dec 11 procurement options report to government. The PWU remains concerned that IESO’s approach does not adequately inform stakeholders about our province’s energy needs and fails to mitigate affordability and reliability risks. The […]

Power Works – Winter Newsletter 2023

Since our last newsletter, the PWU and Members participated in Labour Day parades around the province, we hosted our annual Council of Chief Stewards, elected representatives attended national conferences such as CUPE and the OFL, and the PWU’s Indigenous Relations Committee hosted their first symposium. The PWU devoted many hours to attending and advising, the […]

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