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September 2025 Stakeholder Engagement Meetings

Monthly Engagement Meetings

IESO Stakeholder Engagement Days

September 15 - 16, 2025

Registration Information

Attendees are invited to participate in any or all of the sessions. Each of the sessions will be held as a separate meeting as shown in the agenda below. Pre-registration is recommended for each of the sessions you plan on attending.

Meeting Materials

For meeting materials, please click on the title of the session to access the engagement webpage where documents are posted.

Please contact engagement@ieso.ca with any questions.

 

September 15, 2025

Time Agenda Item Action

1:00 p.m.

Submission Fees for Procurements under the Resource Adequacy Framework

The IESO is seeking feedback on proposed updates to submission fees for energy, capacity, ancillary services, and transmission procurements to better reflect evaluation costs and support cost recovery.

Register

2:00 p.m.

Meeting Adjourned

 

September 16, 2025

Time Agenda Item Action

9:30 a.m.

Market Rule Improvements and Change to Governance of Approval of Market Parameters

The IESO is proposing a minor market rule amendment to remove a legacy requirement that the IESO Board directly set certain technical market parameters used in the calculation engines. This change will bring the treatment of the relevant parameters into alignment with the way in which other market requirements are established and reflected in the market rules and manuals.

Register

10:30 a.m.

Meeting Adjourned

 

10:30 a.m.

2026 Provincial eDSM Achievable Potential Study

The IESO is beginning work on the next provincial eDSM Achievable Potential Study. The study will estimate the quantity of cost-effective electricity demand savings potential and associated costs from energy efficiency, demand response, and behind-the-meter DER programs in Ontario. Please join this webinar to learn more and provide feedback on the study’s objectives, scope, approach, and timeline.

Register

11:30 a.m.

Meeting Adjourned

 

1:00 p.m.

Long-Lead Time Resource Procurement

The IESO will discuss updates to the design of the LLT RFP based on feedback received to date and next steps.

Register

3:00 p.m.

Meeting Adjourned