The Ontario transmission assets comprise of 560 km of 44kV to 230 kV transmission lines in northern Ontario, Canada, and make up an integral component of Ontario's transmission system that connects northern Ontario to southern Ontario. The assets are owned by Hydro One Sault Ste Marie LP.

Hydro One Sault Ste. Marie is the second largest electricity transmitter in Ontario. It comprises an important component of Ontario’s transmission system that connects generators in northern Ontario to electricity demand in Southern Ontario.

Hydro One Sault Ste. Marie is proud of its long history as a transmitter of electricity and is committed to reliable service, employee and public safety, environmental responsibility and enhancing the quality of life in the communities in which it serves.
©  2018 Hydro One Sault Ste. Marie LP