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The OWA is the trusted voice for the waterpower industry representing the common and collective interests of over 140 member companies. Our membership includes generators, product and service providers, municipal and Indigenous communities, and individuals.

By joining the OWA you will be part of the trusted voice for the waterpower industry and will share in our goals to sustain and enhance Ontario’s existing waterpower assets and provide new opportunities for waterpower development in Ontario.
Membership to the OWA is by the member company, not by the individual. Under the umbrella of the member company, all employees are members however only the primary member for each company has voting privileges. Generator Member fees are based on total generation at all facilities in Ontario. Product and Service member fees are based on their annual business in the waterpower sector in Ontario, see rates below.

Member Categories and Fees

Generator Members

(total generation all facilities)

Product and Service Providers

(annual business in Ontario’s waterpower sector)

< 500 kW = $500 < 250 K = $500
> 500 kW - 1 MW = $1,000 < 500 K = $1,000
> 1 MW - 5 MW = $1,500 < 1 M = $2,500
> 5 MW - 10 MW = $3,000 < 2 M = $5,000
> 10 MW - 25 MW = $7,500 > 2 M = $7,500
> 25 MW - 50 MW = $10,000
> 50 MW - 100 MW = $17,500
100+ MW = $50,000
1000+ MW = $80,000

  The OWA offers a discounted membership to seniors, students and communities, for more information, contact us at for more information.

Why Join the OWA?


Member companies are able to nominate, vote and stand for election for a seat on the Board of Directors. The OWA is structured as a “one member, one vote” organization, ensuring all member companies have an opportunity to serve in a leadership role.



Responsible advocacy is at the core of the OWA’s work on behalf of the industry, both with respect to existing assets and new opportunities. Advancing the economic prosperity of generating facilities necessarily benefits the broader industry that comprises OWA’s membership. Membership enables your organization and all company representatives to be part of the voice for the waterpower industry. All members are invited and encouraged to participate in various policy OWA Task Teams that are of direct interest, to provide advice on current and emerging initiatives.

Networking and Events

Membership to the OWA provides the opportunity for all individuals from your organization to be part of the waterpower community and build their networks. Individuals have the exclusive opportunity to attend OWA networking events such as the Queen’s Park annual lobby day and reception, Hydro and Hops Facility Tour, the Power of Water Canada Conference and Tradeshow, and several other OWA events held each year.


Your membership will provide your organization with a competitive edge with exclusive member educational opportunities to events and webinars. You will also have access to OWA internal reports, surveys and other publications.

All individuals from your organization can sign up to receive our weekly members newsletter, the Waterpower Weekly, which contains OWA advocacy and policy information, business opportunities (i.e. RFPs, tenders) member and industry information.


OWA members receive exclusive member-only discounts on products, workshops, the annual Power of Water Canada Technical Conference and Trade Show, exhibit space, advertising and resource materials.

Marketing and Business Opportunities

Members receive exclusive marketing opportunities including access to the OWA Member Hub, the detailed Member Directory and the private Member Forum. Members also have unlimited opportunity to share corporate news and job postings to be included in the newsletter and posted on social media. Finally, members also have the opportunity to advertise in the OWA’s annual Year in Review, and to present webinars to the membership and beyond highlighting their products and services.

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