Barrie to Sudbury Transmission line corridor expansion plans
The Ontario Government is proposing actions to facilitate the development of a critical transmission project to alleviate bottlenecks in the electricity system and support economic growth and electrification in Northern Ontario and the GTA. The corridor as stated in the proposal, is 290km linking additional transmission lines also planned with future developments.
https://ero.ontario.ca/index.php/notice/025-0656?utm_source=chatgpt.com#proposal-details
It will use the existing corridor and existing transmission lines. They will add two more 500KV lines almost doubling the width of the corridor. This would imply a loss of over 10,000 trees and affect the nature of Crane and especially Blackstone Lake.
With either, or both Bill B5 and C5 soon in place, environmental approval may not be required as it’s “Fast Tracked” for economic development. It’s estimated to take 7 years to complete and begin ASAP.
There are many concerns as well as the environment. The BLCA will submit a detailed response and positive alternative plan before the deadline for comments that appear in the proposal. Also, anyone can add their comments as outlined in the proposal, however the deadline is Aug 16, 2025.
Andy Metelka
BLCA Response and comments
Click here to read the report - Aug 14, 2025
BLCA Response - Revision #2
Click here to read the full report - Feb 23, 2026
Our appreciation to Andy Metelka for his leadership and expertise