Forecasting and Planning
The IESO has launched a North of Sudbury Bulk Planning initiative to actively involve stakeholders and communities in shaping the future of Ontario's transmission system. The engagement's ultimate purpose is to proactively develop a bulk transmission plan for the area north of Sudbury that fosters reliable electricity supply and supports the region's economic growth objectives.
The bulk plan will examine the capability of the bulk transmission system’s ability to supply increasing levels of demand in the areas surrounding Timmins, Kirkland Lake, and Pinard. The study will also look at creating opportunities to potentially locate new non-emitting resources in the area, as well as the potential for new or upgraded interconnections with Quebec.
With the formalization of the Bulk System Planning Process in 2022, the IESO is enhancing transparency and creating opportunities for input from communities and sector participants as an important part of individual bulk system studies.
The IESO is actively engaging with stakeholders and communities to shape the future of Ontario's energy transmission system in the study area.
Participant involvement during the various study phases will ensure views and preferences are considered throughout the planning process. This inclusive approach helps establish a strong foundation for successful implementation, enabling a sustainable energy plan that can adapt to future electricity demands. To learn more, please contact the IESO at engagement@ieso.ca.
Anticipated timing for this engagement is presented below.
| Date | Engagement Activity | Expected Actions |
|---|---|---|
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October 31, 2025 |
Feedback due on the items discussed during the September 30th engagement session. |
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October 8, 2025 |
Indigenous Engagement Webinar The IESO will provide sector participants and Ontario communities with an update about our current Bulk Planning initiatives. |
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September 30, 2025 |
Public Engagement Webinar The IESO will provide sector participants and Ontario communities with an update about our current Bulk Planning initiatives. |
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June 19, 2025 |
Feedback due on the items discussed during the May 29th engagement session. Feedback Received: September 8, 2025: IESO Response to Feedback |
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May 29, 2025 |
Public Engagement Webinar The IESO will provide sector participants and Ontario communities with an update on the Bulk Planning initiatives underway. The webinar will be broken-up intro two parts:
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