Hydro One Networks - Customers - Transmission-connected Companies

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Transmission-connected Companies

Hydro One is proud to supply electricity to more than 60 large transmission-connected industrial companies across the province. Ontario is often described as Canada's economic engine.

Our transmission-connected industrial customers include pulp and paper mills, refineries, auto manufacturers, mines, and steel companies located across the province. These customers are connected to Hydro One wires at greater than 50,000 volts and have significant power requirements.

In this section you'll find our latest customer news, real-time operating information (password protected), power quality information and incident reporting, information on our meter exit program and a list of contacts.


Hydro One recognizes the importance of anticipating system needs as the Ontario electricity sector continues to evolve. To this end, Hydro One consults early and often with major customers, existing and potential new generation proponents, and key stakeholders to ensure that the required transmission facilities are in place when they are needed.

Section 1 Section 2 Full Version		Hydro One has prepared an overview (PDF 4.0 MB) of transmission solutions planned for the next 10 years. Transmission Solutions (PDF 12.2 MB), is a "living" plan for the province of Ontario. It will evolve as Ontario's electricity sector evolves, and in response to input from key stakeholders. We recognize that transmission must be planned as part of an integrated approach to addressing the overall electricity needs of Ontario. Get the details on our latest projects.

[ Printable Version ]