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August 2026 Stakeholder Engagement Meetings

Monthly Engagement Meetings

IESO Stakeholder Engagement Days

August 18-20, 2026

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.

This engagement update provides a snapshot of all active IESO engagement activities and is updated on a monthly basis. It helps support a greater understanding of linkages between engagements, and a foundation for more comprehensive and integrated updates.

 

August 18, 2026

Time Agenda Item Action

9:00 a.m.

Intertie Offer Guarantee - Adjustments to Payment Conditions

The IESO will discuss a proposed amendment to the design of the Intertie Offer Guarantee (IOG) to improve wholesale market efficiency. The IESO has determined that IOG payments are being issued when the reliability need is not present in the real-time.

Register

11:00 a.m.

Meeting Adjourned

 

August 19, 2026

Time Agenda Item Action

9:00 a.m.

Adding De-Rates to the Real-Time Lost Cost Economic Operating Point

The IESO will provide an overview of the proposed correction to the formulas in Economic Operating Point (EOP) Market Rules and related tools to ensure continued accuracy and consistency of Real-Time Make Whole Payments (RT MWP). the IESO has identified a specific RT MWP scenario in which RT MWP are paid inaccurately. This scenario is related to the interaction between de-rates and RT lost cost (LC) EOP for PSUs.

Register

10:30 p.m.

Meeting Adjourned

 

August 20, 2026

Time Agenda Item Action

10:00 a.m.

Toronto Third Line

The IESO will provide materials in advance to enable discussion on the Contract Draft #1, the draft AC functional requirements, and an update to the engagement. The draft IEPP Discussion Document and feedback form are available on the engagement webpage for stakeholder review and feedback.

Register

12:00 p.m.

Meeting Adjourned

 

1:00 p.m.

Capacity Auction Enhancements

The IESO will provide updates on Capacity Auction Enhancements.

Register

2:30 p.m.

Meeting Adjourned

 

2:30 p.m.

Long-Term RFP

The IESO will provide updates to the design of the Long-Term RFP Window 2 and discuss feedback received to date.

Register

4:30 p.m.

Meeting Adjourned