Resource Acquisition
Ontario’s electricity sector is undergoing a period of rapid transformation, driven by growing demand, economic development, electrification, and emerging technologies. To meet the projected increases in electricity needs over the next 25 years, the IESO is advancing efforts to support resource acquisition and the expansion of Ontario’s transmission system. These activities aim to help ensure that electricity remains reliable and affordable, when and where it is needed.
As part of this work, the IESO is developing the Transmitter Selection Framework (TSF) — a strategic initiative designed to introduce transparency, competition, and cost-effective investment for new transmission infrastructure. The TSF will establish a competitive process for selecting transmitters, aiming to deliver greater value to ratepayers, encourage innovation, and create opportunities for Indigenous participation. The TSF was initiated following the release of the Powering Ontario’s Growth (POG) report in July 2023 and is further guided by Ontario’s Integrated Energy Plan (IEP). The TSF aligns with the government’s direction to expand the transmission system in a timely and co-ordinated manner, including through competitive procurement for specific new transmission projects.
Further updates will be shared through upcoming engagement sessions and posted on this web page, in alignment with the IESO’s engagement principles. For comments and inquiries, please contact engagement@ieso.ca
Learn more about the IESO’s engagement with Indigenous Communities and Municipalities.
|
Timing |
Engagement Activity |
Expected Actions |
|---|---|---|
|
June 25, 2025 |
The IESO will summarize feedback from the April 22 engagement on the TSF Registry and program rules, present the final TSF Registry program rules, and share next steps for the registry launch and additional TSF design considerations for feedback.
|
This webinar is being during the IESO's June stakeholder engagement sessions, see full agenda for more information. |
|
June 18, 2025 |
|
|
|
May 13, 2025 |
Feedback due following the April 22 webinar. Feedback received: |
|
|
April 22, 2025 |
The IESO will share feedback from the Jan 22 TSF session, present draft registry program rules, and invite input on next steps. |
|
|
February 12, 2025 |
Feedback due following the January 22 webinar. Feedback Received: |
|
|
January 22, 2025 |
Engagement Session: The IESO will discuss the proposed transmitter-qualification criteria for the future Qualified Transmitter Registry (QTR) |
|
|
October 2, 2024 |
||
|
August 9, 2024 |
Feedback due following the July 25 webinar. Feedback Received: |
|
|
July 25, 2024 |
Focused Public Engagement Session: Commercial considerations, readiness and participation consideration; Indigenous participation, regulatory considerations, and expected next steps |
This webinar was presented during the IESO's July stakeholder engagement sessions, see full agenda for more information. |
|
July 5, 2024 |
Following the June 19 engagement webinar, the IESO is seeking feedback from participants on the items discussed during the webinar. Feedback Received: |
|
|
June 19, 2024 |
Focused Public Engagement Session: Evolution of Transmission Planning to support competitive transmission development |
This webinar was presented during the IESO's June stakeholder engagement sessions, see full agenda for more information. |
|
May 10, 2024 |
Following the April 24 engagement webinar, the IESO is seeking feedback from participants on the items discussed during the webinar. Feedback Received: |
|
|
April 24, 2024 |
Focused Public Engagement Session: Preliminary Indigenous Participation considerations |
This webinar was presented during the IESO's April stakeholder engagement sessions, see full agenda for more information. |
|
April 19, 2024 |
Following the March 27 engagement webinar, the IESO is seeking feedback from participants on the items discussed during the webinar. Feedback Received: |
|
|
March 27, 2024 |
Focused Public Engagement Session: Preliminary Technical considerations |
|
|
March 20, 2024 |
Following the February 29 engagement webinar, the IESO is seeking feedback from participants on the items discussed during the webinar. Feedback Received: |
|
|
February 29, 2024 |
Focused Public Engagement Session: Context and Preliminary Process & Commercial Considerations
|
|
|
January – June 2024
|
|
|
|
December 15, 2023 |
Following the November 22 engagement webinar, the IESO is seeking feedback from participants on the items discussed during the webinar. Feedback Received: |
|
|
November 22, 2023 |
Public Engagement Session to:
|
This webinar was presented during the IESO's November stakeholder engagement sessions, see full agenda for more information |
