The company has completed over $157m in upgrades through ten transmission station projects located across Toronto and the GTA in 2014.

The transmission projects, which are currently underway in the GTA and due to be completed by 2018, include New Clarington in Clarington; Leaside to Bridgman transmission expansion (Midtown Tunnel); Richview; Connection of Toronto Hydro Copeland Tunnel; and Manby in Toronto.

The projects also include Bridgman, Wiltshire, Gerrard, Leaside, Ellesmere, Scarboro, Carlaw, and Strachan in Toronto as well as Trafalgar transmission station in Oakville.

Hydro One Strategic Planning executive vice-president & chief operating officer Sandy Struthers said: "These investments will improve electricity reliability in Toronto and the GTA today and for the future."

The Province of Ontario-owned Hydro One owns and operates Ontario’s 29,000km high-voltage transmission network which delivers electricity to large industrial customers and municipal utilities, as well as a 122,000km low-voltage distribution system.