Hydro One has filed applications with the Ontario Energy Board (OEB) to build new transmission lines in the southwest and northern regions.

The Northeast Power Line is a single-circuit 500-kilovolt (kV) transmission line between Hanmer Transformer Station (TS) in Greater Sudbury, and Mississagi TS near Wharncliffe.

The infrastructure is expected to add approximately 900 megawatts (MW) to the transmission system's transfer capability between northeast and northwest Ontario Construction of the approximately $1.8-billion transmission line is planned to be completed in 2029.

The Longwood to Lakeshore Transmission Line is a single-circuit 500-kV transmission line between Longwood TS in the Municipality of Strathroy-Caradoc and Lakeshore TS in the Municipality of Lakeshore.

The approximately $1.2-billion investment is anticipated to bring about 550 MW of electricity to the region, to support local jobs and the agri-business and manufacturing sectors in southwest Ontario. It's expected to be completed in 2030.

Through Hydro One's First Nation Equity Partnership Model, area First Nations will have the opportunity to invest in a 50 percent equity stake in the transmission line component of each project. Hydro One and the First Nations partners will continue to collaborate on the planning, development and construction of the lines.

"Electricity demand in Ontario is increasing. These lines are part of one of the largest transmission line infrastructure investment portfolios in Canada that we are advancing together with First Nations," said Ryan Docherty, Executive Vice President, Capital Portfolio Delivery, Hydro One. "Hydro One's success is tied to Ontario's success. Together, we are helping build a stronger and more self-reliant economy that advances local priorities, supports good jobs and drives economic growth, while continuing to deliver value for the people of Ontario."

The move to file a leave-to-construct application under the Ontario Energy Board Act is required for electricity transmitters in Ontario to obtain approval from the OEB to construct, expand or reinforce the transmission system. The application includes details on the project's route, design, timing and cost.

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