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Pending Changes - Documents

The list below provides advance notice of pending changes to the market rules, market manuals, technical interfaces documentation or other items that define the operation of the IESO-administered market. For changes that are minor, the listing will identify the document that is changing and a description of the revisions, but a link to the altered document may not be included.

Comments on the design and implementation concerns can be sent to pending.changes@ieso.ca. This feedback will be taken into account during the baseline schedule.

Details of all of the documents being revised for the current Baseline (and the next Baseline if available) can be found below.

See Document Library for previous Baseline Plans.
MRP Baseline

The list below provides advanced notice of pending changes to Market Manuals and forms as part of MRP. For a complete listing of documents changing as part of this baseline please see the MRP Baseline Plan or the Summary of Changes.

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Item Last Updated Comments Due Target Implementation
       
       

Pending Changes - Documents

Item Last Updated Comments Due Target Implementation
Market Manual 0.5.5 – IESO-Administered Markets Settlement Amounts

Update to capacity obligation buy-out charge overview to reflect it being applied by the IESO pursuant to MR Ch. 7, ss. 18.4.4.
08-Oct-2025 23-Oct-2025 In advance of Baseline 54.1
Renewed – Charge Types and Equations_LST-84_4.1

Modified charge type 1319 (Capacity Obligation - Buy-Out Charge) as part of the 2025 Capacity Auction enhancements.
08-Oct-2025 23-Oct-2025 In advance of Baseline 54.1
Market Manual 12.0 Capacity Auctions

These include changes to the buy-out process, self-scheduled test framework and time stamp under the new tie-break methodology in the Market Rules.
08-Oct-2025 23-Oct-2025 In advance of Baseline 54.1