All projects
PlanningTransmission
Essa to Hanmer Transmission Project
Hydro One · Essa to Hanmer, ON
Overview
Two new transmission lines between Essa TS near Barrie and Hanmer TS near Sudbury, directed by Ontario’s energy minister as a priority project. It is one of the corridors the IESO has identified as needed for the demand growth in its latest planning outlook.
- Owner
- Hydro One
- Province
- Ontario
- Location
- Essa to Hanmer, ON
- Category
- Transmission
- Phase
- Planning
Latest update
OEB issued its decision amending Hydro One’s licence to proceed.
Feb 10, 2026
Project timeline
Recent news
No matched coverage yet. Grid Monitor archives every article it matches to this project.
Sources
Also reported as: Essa-Hanmer · Essa to Hanmer transmission lines
Tracked since Sep 21, 2026
Looking for something else? Browse every tracked project.