Construction work starts on St. Clair Transmission Line – Link2Build
September 11, 2025
Hydro One has announced the start of construction on the St. Clair Transmission Line.
The 64-kilometre, double-circuit 230 kilovolt (kV) transmission line will connect the County of Lambton and Municipality of Chatham-Kent, while expanding the existing Chatham Switching Station and Lambton Transformer Station and converting the existing Wallaceburg TS to 230 kV by 2028.
The new transmission line will provide 450 MW of power to the region – the equivalent of adding enough power for a city of the size of Windsor – and enable the expansion of electric vehicle manufacturing and farming operations in the region.
