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Technical Panel - Market Rule Amendment Determinations

September 11, 2025

The Technical Panel is requesting feedback on two sets of market rule amendments. Communities and stakeholders can email their comments to rule.amendments@ieso.ca.

  • Post Go Live True-Ups for the Renewed Market (MR-00484-R00-R05): These proposals contain various non-substantive changes required to better align the market rules with the correct functioning of the Market Renewal Program’s implementation. Comments are due Wednesday, September 17.
  • Capacity Auction Tie-Break Methodology (MR-00488-R00): This proposal introduces a multi-step tie-break process within the capacity auction clearing optimization. Comments are due Tuesday, September 23.

The amendment proposals are available on the Proposed Market Rule Amendments webpage.

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