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Pseudo-Unit (PSU) Updates

Sector Evolution

The IESO continues to explore improvements to the market design, leading to increased efficiency, transparency, and competition. This engagement session focuses on updates to how pseudo-unit resources are scheduled and is proposing fixes to replace interim workarounds that were implemented shortly after the renewed market went live in May 2025.

Schedule of Activities

Date

Engagement Activity

Expected Actions

May 21, 2026

Engagement Webinar

The IESO will provide an overview of the enhancements and updates to the interim workarounds for Pseudo-Unit resource scheduling.

Register

This webinar is being presented during the IESO's May stakeholder engagement sessions, see full agenda for more information.