South Georgian Bay/Muskoka

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Area Overview

The South Georgian Bay/Muskoka region is located in central Ontario and includes more than 30 municipalities and 10 First Nation communities. The South Georgian Bay/Muskoka region includes two sub-regions: Barrie/Innisfil sub-region and Parry Sound/Muskoka sub-region.

The local distribution companies providing services to customers in the area include:

  • Alectra Utilities
  • Elexicon Hydro
  • EPCOR Electricity Distribution Ontario Inc.
  • Hydro One Networks Inc.
  • InnPower Corporation
  • Lakeland Power
  • Newmarket-Tay Power Distribution Ltd.
  • Orangeville Hydro

Community Engagement

The IESO engages with local and regional communities to seek input to help inform planning activities. There are currently no active regional planning engagement activities for this region. See Key Resources below for the latest planning documents.

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Regional Planning Progress Update

The most recent regional planning cycle for Barrie/Innisfil and Parry Sound/Muskoka sub-regions are complete with the release of an Integrated Regional Resource Plan (IRRP) and the supporting IRRP Appendices and Bulk Appendices in May 2022.

Following the completion of a Needs Assessment by Hydro One in April 2020, a Scoping Assessment Outcome Report and Terms of Reference for the South Georgian Bay/Muskoka region was completed in November 2020 that determined coordination was required at the sub-regional level to develop an Integrated Regional Resource Plan (IRRP) for each of the two sub-regions.

Key Resources

Documents referenced on this page, but not posted, can be obtained by contacting with a link to the web page that lists the document and advise whether it needs to be provided in an accessible format. Please allow a minimum of one business day for a response.