The Northern Ontario East West Tie (EWT) project is a proposed 248 mile (400km), 230kV transmission line from Wawa to Lakehead substation near Thunder Bay, Ontario, with a continuous carrying capacity of 466 MWA. A report from the Ontario Energy Board has concluded that this project is a cost effective way to meet forecast energy demand in Northern Ontario; increase reliability in the region; allow retirement or conversion of coal generation facilities in Northern Ontario; and improve flexibility for additional renewable generation. The project will be completed in two segments. The first is from the Wawa TS to Marathon TS, while the second will consist of the line between the Marathon TS to the Lakehead TS.
|Project Sponsor||Line Miles||Voltage (kV)||From State||To State||Year in Service|
|Upper Canada Transmission||280||230||ON||ON||2021|
|Estimated Costs ($M)||Voltage Type||Project Status||Project Group||Origin Point||Destination Point|
|Interstate||Build Start||NERC||ISO/RTO||Country||Project Partners|
|No||2019||NPCC||OIESO||CA||NextEra Energy Canada, Enbridge Inc. and Borealis Infrastructure Management|