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Ontario selects Hydro One to build new priority transmission line between Sudbury and Barrie
Hydro One will construct a 300 km, 500-kV line to address transmission bottlenecks, supporting up to 1,500 MW north and 1,000 MW south, powering industry and homes.
- On Feb. 9, 2026, the province directed the OEB to designate Hydro One to develop and construct a new single-circuit 500-kV transmission line from Hanmer Transformer Station, Sudbury, to Essa Transformer Station near Barrie, expected in service by 2032.
- Rising demand in Northern Ontario, including projections of an 81 per cent increase by 2050, and mining expansion with potential 41 new mines by 2033 prompted the plan.
- The province directed the OEB to amend Hydro One's transmission licence to start Phase 2 development, designate the project as a priority for streamlined approvals, and enable collaboration with proximate First Nations.
- The project will add capacity delivering up to 1,500 MW north and 1,000 MW south, powering 600,000 to one million homes and allowing proximate First Nations up to a 50 per cent equity stake.
- Ontario and the Energy Corridor First Nations signed a December 2025 MOU to guide joint planning and engagement, while Phase 2 is in early development and the final route remains undetermined with consultations ongoing.
12 Articles
12 Articles
Ontario fast-tracks major transmission line in partnership with First Nations to support mining
Ontario is fast-tracking a major new transmission line between Barrie and Sudbury in partnership with First Nations to support mining, part of a bet that a surge in mining development will drive electricity demand in northern Ontario.
Province fast-tracks Sudbury–Barrie transmission line as mining boom looms
With Northern Ontario poised for a major mining expansion, the Ford government has declared a new high-voltage transmission line between Sudbury and Barrie a priority project, fast-tracking construction to meet soaring electricity demand.
Hydro One selected to build new transmission line between Sudbury and Barrie
On Feb. 9, Associate Minister of Energy‑Intensive Industries Sam Oosterhoff, joined by Chiefs from the Energy Corridor First Nations (ECFN) and neighbouring communities, announced that Ontario will accelerate construction of a new single‑circuit 500‑kilovolt transmission line running roughly 290 kilometres from the Essa Transformer Station near Barrie to the Hanmer Transformer Station in Sudbury. The Barrie–Sudbury line is expected to deliver up…
PR Newswire
Ontario selects Hydro One to build new priority transmission line between Sudbury and Barrie
/PRNewswire/ - Today, the Honourable Sam Oosterhoff, Associate Minister of Energy-Intensive Industries and the Honourable Stephen Lecce, Minister of Energy and...
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