Technical Panel - Market Rule Amendment and Terms of Reference Determinations
September 18, 2026
The Technical Panel voted to recommend the following market rule amendments and Technical Panel Terms of Reference to the IESO Board of Directors for review:
- 2026 Capacity Auction Enhancements (MR-00493-R00): This proposal amends the market rules to update the in-period cleared UCAP Adjustment Charge when a notice of disagreement if filed and revises the Emergency Activation Payment formula in limited circumstances.
- Chapter 3 Market Rule Amendment Refresh (MR-00492-R00): This proposal amends the market rules to update the market rule amendment process specified in Chapter 3, section 4 of the market rules.
- Technical Panel Terms of Reference: As part of the Chapter 3 Market Rule Amendment Process Refresh, conforming updates to the Terms of Reference are proposed. The changes would remove provisions that duplicate requirements already contained in the market rules or market manuals.
The Technical Panel is also requesting feedback on the following market rule amendments:
- Changes to the Establishment and Publication of Market Parameters (MR-00489-R00):This proposal revises the determination and publication framework for certain market parameters used by the day-ahead, pre-dispatch, and real-time calculation engines. Comments are due by September 24. Communities and stakeholders can email their comments to rule.amendments@ieso.ca.
The above amendment proposals and Technical Panel Terms of Reference are available on the Proposed Market Rule Amendments webpage.