Thunder Bay Hydro Coporation

Serving the City of Thunder Bay with electricity.

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Thunder Bay Hydro Corporation is a group of companies serving Thunder Bay and area with electricity distribution, generation and utility services.

Thunder Bay Hydro Electricity Distribution Inc.

is responsible for the power line system within the city limits of Thunder Bay and for delivering electricity to the homes and businesses here. We are the local, front-line customer service face of the province's electrical industry providing for the reading of customer meters, billing, and offering energy conservation advice and programs. We build, plan & maintain the local power line system and provide 24-hour emergency response.


Thunder Bay Hydro distributes electricity to over 50,000 customers via a network of over 1,300 kilometers (815 miles) of overhead and underground power lines - that's almost the distance between here and Toronto! The energy to do all of this comes from our staff of 130 employees.


Our history dates back to the 1890s when we were two separate utilities, the Port Arthur Public Utilities Commission and Fort William Hydro. In 1970, we were amalgamated, along with the two cities, into Thunder Bay Hydro.

Today, we are a private local distribution company owned by the City of Thunder Bay and run by the Thunder Bay Hydro Board , which consists of 7 members appointed by City Council.

Thunder Bay Hydro Renewable Power Incorporated

This company is a subsiduary whose strategy is to develop renewable energy generation projects in the Thunder Bay area. The company owns and operates the Mapleward Renewable Generating Station.

Learn about our Renewable projects→

Thunder Bay Hydro Utility Services

Our Utility Services company provides back office systems and support, IT hosted applications and program management that includes conservation programs to other electric utility companies in the district.


Vision and Values

Our Locations

How we fit into the provincial power grid

Annual Report