Hydro One has filed a leave-to-construct application with the Ontario Energy Board (OEB), seeking approval to construct the 55-kilometre double circuit, 230-kV Durham Kawartha Power Line. The new power line would be built between the Municipality of Clarington, Ont., and Peterborough, Ont.; connecting Clarington Transformer Station to Dobbin Transformer Station in Peterborough County. The project encompasses an approximate investment of $430 mil…