Hydro One Seeks Approval for $430M Durham Kawartha Power Line

  • Hydro One filed a leave-to-construct application with the Ontario Energy Board for the 55km, 230-kilovolt Durham Kawartha Power Line, a $430M investment.
  • The project aims to increase transmission capacity and support growth in central and eastern Ontario, with completion expected in 2029.
  • First Nations will have the opportunity to invest in a 50% equity stake in the transmission line component.
  • The line will connect Clarington Transformer Station in Clarington to Dobbin TS in Peterborough County.

Hydro One's $430M Durham Kawartha Power Line is part of one of Canada's largest transmission infrastructure investment portfolios, reflecting the growing need to strengthen grid reliability amid increasing electricity demand and severe weather impacts. The project underscores Hydro One's strategy of collaborating with First Nations, aligning with broader trends in Indigenous partnership models within energy infrastructure.

Regulatory Timing
How quickly the Ontario Energy Board approves the project will dictate Hydro One's construction timeline and cost management.
Indigenous Partnership
Whether the 50% equity stake model can be replicated in future projects, enhancing Hydro One's social license to operate.
Grid Modernization
The pace at which Hydro One advances its broader transmission line portfolio amid rising electricity demand and aging infrastructure.