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Published March 12, 2026 at 8:00 PM
Updated March 13, 2026
Site work for a power facility in Barrie, Ontario. Conceptual plans call for site work for a power facility.
Construction of a new single-circuit 500-kilovolt transmission line that will run approximately 290 kilometres from the Essa Transformer Station near Barrie to the Hanmer Transformer Station in Sudbury. The Barrie to Sudbury line will create capacity to deliver up to 1,500MW to the north and 1,000MW to the south. The line will help in supporting economic growth in the North, supporting mining sector development and reshoring Ontario's domestic supply chains. Phase 1 - a single-circuit 500-kilovolt transmission line running 290 kilometres from Barrie to Sudbury. Phase 2 - a second single-circuit 500-kilovolt line that will undergo early development work at this time to ensure the project can materialize quickly when more transmission capacity between northern and southern Ontario is needed. TIMELINE: Project planning is underway with the selection of Hydro One as the developer for the project. The province has recently announced accelerating construction. A construction start has yet to be announced; Phase 1 however is expected to be in-service in 2032; Phase 2 timeline has yet to be released. *Project is proceeding in partnership with the Energy Corridor First Nations (ECFN) consortium. *Construction cost is an estimate.
Conceptual
Power Plant
$450,000,000.00
Public - State/Provincial
Site Work
Plans and Specifications are not available for this project. If that changes, they will be made available here.
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