Implementation Engagement
The Market Renewal Program (MRP) will deliver a more efficient, stable marketplace with competitive and transparent mechanisms that meet system and participant needs at lowest cost. The final high-level design documents were completed in 2019 and the final detailed design documents were completed in 2021. Now the focus is to translate these designs into rules, manuals, processes and tools as part of the implementation phase.
The Replacement of the Settlement System (RSS) is a key project that will see a complete modernization of the IESO’s settlement system, the tool used to produce statements reflecting market participants’ involvement in IESO-administered markets. This project will address limitations within the existing system and processes, and integrate changes resulting from the Market Renewal Program and future IESO initiatives.
Get Involved
For more information about how to become involved or to provide comments on this initiative, please contact engagement@ieso.ca.
Stakeholder Engagement Plan – Energy Implementation (December 2023)
Market Participant Readiness Plan – Energy Implementation (December 2023)
Schedule of Activities
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Date Agenda |
Activities | Expected Actions |
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April 25, 2024 |
Engagement Webinar The IESO will provide stakeholders with an update on the transition to the new market, additional clarity being provided regarding the Dispatch Schedule Error process, suspended administration of Physical Bilateral Contracts (PBCs), and a brief overview of the transitional rules that will be part of the Final Alignment batch of Market Rule amendments. |
This webinar is being presented during the IESO's April stakeholder engagement sessions, see full agenda for more information. |
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March 13, 2024 |
The IESO has provided responses to feedback and questions received from participants on the Market & System Operations batch draft market rule and market manual amendments that was published on July 14, 2023. Updated Market Rules amendments: Updated Market Manuals amendments:
The following documents have also been updated due to further internal review:
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February 28, 2024 |
The IESO has provided responses to feedback and questions received from participants on the Market Power Mitigation changes made to the Market Rules and Market Manuals that were presented during the December 15, 2023 webinar. |
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January 29, 2024 |
Updated Market Settlements, Metering, and Billing Market Manuals, Market Rules, and Charge Types and Equations Market Rules amendments:
Market Manuals amendments: Charge Types and Equations (clean) Charge Types and Equations (redline) Updated Summary of Changes |
Stakeholders can submit questions and feedback to engagement@ieso.ca until February 26, 2024. Please submit all feedback using the feedback form. |
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January 25, 2024 |
Following publication on December 1, 2023, the IESO is seeking feedback from participants on the Market Power Mitigation changes made to the Market Rules and Market Manuals that were presented in the December 15, 2023 webinar. Feedback Received |
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January 23, 2024 |
The IESO has provided responses to feedback and questions received for the following:
Stakeholder (Evolugen by Brookfield Renewable) Feedback and IESO Response
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January 22, 2024 |
Kick-off meeting for MRP Connectivity Testing |
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December 15, 2023 |
Engagement Webinar The IESO will present the following items in this webinar:
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This webinar was presented during the IESO's December stakeholder engagement sessions, see full agenda for more information. |
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December 1, 2023 |
Updated Market Power Mitigation Market Manuals, Updated Market Rules, and Workbooks Market Manuals Amendments:
Market Rules Amendments:
Blank Workbooks: Example Workbooks: |
Stakeholders can submit questions and feedback to engagement@ieso.ca until January 24, 2024. Please submit all feedback using the feedback form. |
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November 8, 2023 |
Following publication on July 14, 2023, the IESO is seeking feedback from participants on the Market and System Operations batch of Market Rules and Market Manuals amendments. Feedback Received: |
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November 2, 2023 |
Following publication on September 7, 2023 the IESO is seeking feedback from participants on the Market Settlement Market Manuals amendments. Feedback Received: |
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October 27, 2023 |
The IESO has provided responses to feedback and questions received during the Market and System Operations (MSO) Q&A sessions that were held from September 26, 2023 to October 3, 2023. |
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October 20, 2023 |
Engagement Webinar The IESO will provide training updates and an overview of MRP testing that will begin next year, as well as a demo of its new test case management tool (qTest). |
This webinar was presented during the IESO's October stakeholder engagement sessions, see full agenda for more information. |
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October 20, 2023 |
Following the September 21st engagement webinar, the IESO is seeking feedback from participants on the implementation design modification. |
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October 3, 2023 9 a.m. – 12 p.m. |
Engagement Webinar Q&A session on the Market and Systems Operations batch for GOG-eligible non-quick start generators. |
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September 29, 2023 |
Following the September 21st engagement webinar, the IESO is seeking feedback from participants on the charge types and equations used in the IESO settlements process for IESO-administered markets. The documents can be accessed from the Implementation Phase documents webpage. Feedback Received: |
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September 29, 2023 9 a.m. – 12 p.m. |
Engagement Webinar Q&A session on the Market and Systems Operations batch for dispatchable hydroelectric generators |
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September 28, 2023 10:30 a.m. – 12 p.m. |
Engagement Webinar Q&A session on the Market and Systems Operations batch for intertie traders. |
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September 28, 2023 9:30 a.m. – 10:15 a.m. |
Engagement Webinar Q&A session on the Market and Systems Operations batch for virtual traders. |
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September 26, 2023 2:30 p.m. – 4 p.m. |
Engagement Webinar Q&A session on the Market and Systems Operations batch for hourly demand response resources, dispatchable loads, and price responsive loads. |
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September 26, 2023 11 a.m. – 12 p.m. |
Engagement Webinar Q&A session on the Market and Systems Operations batch for energy storage resources, renewable generators, nuclear generators and non-dispatchable generators. |
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September 21, 2023 |
Engagement Webinar
Additionally, the IESO will present the following design updates:
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This webinar was presented during the IESO's September stakeholder engagement sessions, see full agenda for more information. |
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September 7, 2023 |
Market Manuals amendments: |
Stakeholders can submit questions and feedback to engagement@ieso.ca. Please submit all feedback using the feedback form.
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August 4, 2023 |
This document enumerates the various charge types and equations used in the IESO settlements process for IESO-administered markets. |
Stakeholders can submit questions and feedback to engagement@ieso.ca until September 29, 2023. Please submit all feedback using the feedback form. |
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July 27, 2023 and July 28, 2023 |
Engagement Webinar: The purpose of these sessions is to prepare market participants for their review of the draft Market & System Operations (MSO) batch of market rule and market manual amendments as part of the Market Renewal Program. |
Recorded Presentation: July 27 - Part 1 Recorded Presentation: July 28 - Part 2 This webinar was presented during the IESO's July stakeholder engagement sessions, see full agenda for more information. |
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July 14, 2023 |
Market and System Operations Batch: Market Rules amendments:
Market Manuals amendments: |
Stakeholders can submit questions and feedback to engagement@ieso.ca until November 8, 2023. Please submit all feedback using the feedback form. |
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July 13, 2023 |
Following the June 22nd engagement webinar, the IESO is seeking feedback from participants on proposed categories for the Independent Review Process (IRP) and two design implementation solutions. Feedback Received: October 4, 2023: IESO Response to Feedback |
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June 22, 2023 |
Engagement Webinar The IESO will present an update on the Consolidated Draft and describe the proposed categories that the IESO intends to use to secure experts that will be available to support the Independent Review Process. There will also be a quarterly update on design implementation solutions.
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This webinar was presented during the IESO's June stakeholder engagement sessions, see full agenda for more information. |
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June 21, 2023 |
Posting of Market Rules and Market Manuals consolidated amendments |
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April 24, 2023 |
Updated Market Settlements, Metering and Billing Batch Draft Materials: Market Rules amendments:
Market Manuals amendments: |
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April 21, 2023 |
Following the March 30th engagement webinar, the IESO is seeking feedback from participants on the incremental updates made to the draft Market Power Mitigation batch of Market Rules and Market Manuals amendments. Feedback Received: June 15, 2023: IESO Response to Feedback |
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March 30, 2023 |
Engagement Webinar The IESO MRP Team will provide an update on the Market Power Mitigation framework, including incremental updates to the market rules, market manuals, workbooks and other documentation. The presentation will highlight the areas of updates for the framework, including the Independent Review Process. |
This webinar was presented during the IESO's March stakeholder engagement sessions, see full agenda for more information. |
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March 16, 2023 |
Updated Market Power Mitigation Market Manuals: Market Rules amendments:
Market Manuals amendments:
Workbook Instructions and Frequently Asked Questions Updated Blank Workbooks: Updated Example Workbooks: |
Stakeholders can submit questions and feedback to engagement@ieso.ca until April 21, 2023. Please submit all feedback using the feedback form. |
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February 21, 2023 |
Following publication on December 1, 2022 the IESO is seeking feedback from stakeholders on the draft Market Settlements, Metering and Billing batch of Market Rules and Market Manuals amendments. Feedback Received:
April 24, 2023: IESO Response to Stakeholder Feedback |
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January 20, 2023 |
Engagement Webinar Review of Examples under MRP for Settlement Mitigation (for dispatchable resources) |
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January 19, 2023 |
Engagement Webinar Review of Settlement Examples Under MRP for Natural Gas Generators |
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January 19, 2023 |
Engagement Webinar Review of Settlement Examples Under MRP for Hydroelectric Generators |
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January 18, 2023 |
Engagement Webinar Review of Settlement Examples Under MRP for Energy Storage Resources |
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January 18, 2023 |
Engagement Webinar Review of Settlement Examples Under MRP for Renewable and Nuclear Generators |
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January 17, 2023 |
Engagement Webinar Review of Settlement Examples Under MRP for Intertie Transactions and Virtual Traders |
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January 17, 2023 |
Engagement Webinar Review of Settlement Examples Under MRP for Wholesale Consumers, Dispatchable Loads and Price Responsive Loads |
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January 16, 2023 |
Engagement Webinar Review of Settlement Examples Under MRP for LDCs |
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December 14, 2022 |
Engagement Webinar In this meeting, the IESO will introduce and discuss the Market Settlements market rules and manuals, including a detailed exploration of some basic examples. |
This webinar was presented during the IESO's December stakeholder engagement sessions, see full agenda for more information. |
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December 1, 2022 |
Release of the Market Settlements, Metering and Billing Batch Draft Materials: Market Rules amendments:
Market Manuals amendments: |
Stakeholders can submit questions and feedback to engagement@ieso.ca until February 21, 2023. Please submit all feedback using the feedback form. |
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November 8, 2022 |
Following publication on September 9, 2022 the IESO is seeking feedback from stakeholders on the draft Interim Alignment batch of Market Rules and Market Manuals. Feedback Received: |
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September 22, 2022 |
Engagement Webinar The MRP Team will be introducing and providing a forum to answer questions on the Interim Alignment Rule Set, there will be updates on the IESO's Replacement of Settlement System project implementation and on the MRP project schedule. |
This webinar was presented during the IESO's September stakeholder engagement sessions, see full agenda for more information. |
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September 9, 2022 |
Release of the Interim Alignment Batch Draft materials: Market Rules amendments:
Market Manuals amendments:
December 20: IESO Response to Feedback |
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September 1, 2022 |
Posting of Market Rules and Market Manuals consolidated amendments Stakeholder Feedback April 25, 2023: IESO Response to Feedback |
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August 25, 2022 |
Engagement Webinar Overview of how to make-whole payments account for the unique characteristics of hydroelectric generators in the renewed day-ahead and real-time markets. |
This webinar was presented during the IESO's August stakeholder engagement sessions, see full agenda for more information. |
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July 21, 2022 |
Engagement Webinar The IESO will provide an update on further amendments to the Market Power Mitigation Market Manuals, which were informed by stakeholder input, and recap the progress on the Reference Level/Reference Quantity. There will also be an RSS Implementation Update to review the changes being implemented and a discussion of key next steps for stakeholders. Stakeholder Feedback October 4, 2022: IESO Response to Feedback |
This webinar is being presented during the IESO's July stakeholder engagement sessions, see full agenda for more information. |
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July 15, 2022 |
Updated Market Power Mitigation Market Manuals: Market Manuals amendments:
Updated Summary of Changes Updated Reference Levels workbooks:
Updated Example Workbooks: Dispatchable Load: Energy Storage
Hydro: Nuclear Solar: Wind: |
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July 15, 2022 |
Following the June 21st webinar, the IESO is seeking feedback on the design implementation solution for thermal state transition. |
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July 13, 2022 |
Updated Calculation Engines draft Market Rules: Updated Market Manuals amendments:
Stakeholder feedback October 4, 2022: IESO Response to Feedback |
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July 8, 2022 |
Thirteen ‘Day-in-the-Life’ Market Participant Readiness Documents posted Stakeholder Feedback |
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June 21, 2022 |
Engagement Webinar Discussion on implementation items, including thermal state transition, constraint violation pricing for hydroelectric units, Transmission Rights transition, and a forecast of engagement activities. |
This webinar was presented during the IESO's June stakeholder engagement sessions, see full agenda for more information. |
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April 21, 2022 |
Engagement Webinar Provide stakeholders with background and information regarding Economic Operating Point.
Stakeholder Feedback November 8, 2022: IESO Response to Stakeholder Feedback |
This webinar was presented during the IESO's April stakeholder engagement sessions, see full agenda for more information. |
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April 15, 2022 |
Feedback is due on the March 24 webinar topics, including the design implementation solutions. May 27, 2022: IESO Response to Stakeholder Feedback |
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April 15, 2022 |
Feedback is due on the draft batch of Market Rules for Calculation Engines that were released on February 4. June 9, 2022: IESO Response to Feedback |
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March 24, 2022 |
A quarterly update on solutions for practical issues that arise when implementing Market Renewal. |
This webinar was presented during the IESO's March stakeholder engagement sessions, see full agenda for more information. |
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March 17, 2022 |
Feedback is due on the February 22 webinar topics, including the draft batch of Market Rules and Market Manuals, and the draft Market Participant Readiness Plan for the Replacement of Settlement System. April 14, 2022: IESO Response to Stakeholder Feedback |
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March 15, 2022 |
Updated Market Power Mitigation Market Rules and Market Manuals: Market Rules amendments:
Market Manuals amendments:
Updated Summary of Changes |
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March 1, 2022 |
Feedback due on the Updated Market Power Mitigation Market Rules and Market Manuals posted December 17, 2021 |
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February 22, 2022 |
A presentation on the market rules, market manuals and implementation plans for the IESO's Replacement of Settlement System Project for stakeholder review and comment. |
This webinar was presented during the IESO's February stakeholder engagement sessions, see full agenda for more information. Stakeholders can submit questions and feedback to engagement@ieso.ca until March 17, 2022. Please submit all feedback using the feedback form. |
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February 22, 2022 |
A presentation on the third batch of market rules regarding the calculation engines. This session will also provide insights into the design for the collection and disbursement of external and net interchange scheduling limit (NISL) congestion cost residuals incurred in the future with market renewal. |
This webinar was presented during the IESO's February stakeholder engagement sessions, see full agenda for more information. |
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February 17, 2022 |
Following the January 26th webinar, the IESO is seeking stakeholder feedback on the Market Participant Readiness Plan. May 18, 2022: IESO Response to Stakeholder Feedback |
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February 4, 2022 |
Release of the Calculation Engines batch of draft market rules. Market Rules amendments: |
Stakeholders can submit questions and feedback to engagement@ieso.ca until April 15, 2022. Please submit all feedback using the feedback form. |
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January 26, 2022 |
The IESO will provide a brief review of the Market Participant Readiness Plan and seek feedback and advice for proposed suggestions. |
This webinar was presented during the IESO's January stakeholder engagement sessions, see full agenda for more information. |
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January 14, 2022 |
Following the December 15 webinar topics, the IESO is seeking stakeholder feedback on the design implementation solutions. March 4, 2022: IESO Response to Stakeholder Feedback |
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December 17, 2021 |
Updated Market Power Mitigation Market Rules and Market Manuals: Market Rules amendments: Market Manuals amendments:
Revised Market Manuals amendments edits to incorporate stakeholder feedback since August 12, 2021
Updated Summary of Changes Updated Reference Levels workbooks: |
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December 16, 2021 |
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December 15, 2021 |
The IESO will engage stakeholders with a quarterly update on solutions for practical issues that arise when implementing Market Renewal, covering Reference Levels for Pseudo Units, and integration of Storage design. |
This webinar was presented during the IESO's December stakeholder engagement sessions, see full agenda for more information. |
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December 14, 2021 |
Stakeholder feedback on the Market Power Mitigation batch. |
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November 17, 2021 |
Feedback Items Carrying Forward from Detailed Design to Implementation (Updated November 2021) |
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November 5, 2021 |
MRP Technical Advisory Group Meeting This meeting of the Technical Advisory Group will discuss test execution management, commitment notifications, and reports engagement. |
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October 15, 2021 |
The IESO is seeking input from stakeholders to submit clarifying questions and written feedback on the MPM batch and conforming changes to the Market Entry batch. |
Stakeholders can submit questions and feedback to engagement@ieso.ca until October 15. Please submit all feedback using the feedback form. |
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September 27, 2021 |
Meeting Follow-Up: MRP Implementation - MPM Market Rules and Market Manuals (Sept 23) |
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September 23, 2021 |
Engagement webinar The Market Power Mitigation batch of draft market rules and market manuals were published on August 12 and are open for stakeholder review and feedback until October 15. This meeting will be an opportunity for stakeholders to ask clarification questions on the draft batch of market rules and market manuals. Stakeholders are encouraged to submit questions in advance to engagement@ieso.ca. |
Recorded Presentation |
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August 26, 2021 |
Engagement webinar In this meeting the IESO will outline the materials and the stakeholder review schedule for the Market Power Mitigation batch of market rules and market manuals. The IESO will provide an overview of how the documents are organized, and point to where topics of interest are covered. Stakeholders are encouraged to do a preliminary review of the batch prior to the meeting and come prepared with any early questions they may have. |
This webinar was presented during the IESO's August stakeholder engagement sessions, see full agenda for more information. |
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August 26, 2021 |
Engagement webinar With the final design update for the Settlement Disagreements and Resettlements Process published in June, the Replacement of the IESO's Settlement System (RSS) is now transitioning into the implementation phase of work. At this session the IESO will provide an overview of its plans for the implementation phase, including what's changing from a tool and process perspective, market rule impacts, and timelines for testing and training activities. Stakeholder Feedback |
This webinar was presented during the IESO's August stakeholder engagement sessions, see full agenda for more information. |
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August 13, 2021 |
MRP Technical Advisory Group Meeting |
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August 12, 2021 |
Release of the Market Power Mitigation batch of draft market rules and market manuals. Market Rules amendments: Market Manuals amendments:
Conforming Changes:
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Stakeholders can submit questions and feedback to engagement@ieso.ca until October 15. Please submit all feedback using the feedback form. |
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July 15, 2021 |
Deadline for stakeholder feedback on topics presented at the June 24th webinar: Solutions for issues and opportunities that arise when implementing the detailed design. |
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July 13, 2021 |
Deadline for stakeholder feedback on topics presented at the June 24th webinar: Solutions for issues and opportunities that arise when implementing the detailed design. |
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June 24, 2021 |
Engagement Webinar Overview of how the IESO will be transparently engaging with stakeholders on solutions for practical issues that arise when implementing aspects of the detailed design. |
This webinar was presented during the IESO's June stakeholder engagement sessions, see full agenda for more information. |
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June 18, 2021 |
MRP Technical Advisory Group Meeting The first meeting of the Technical Advisory Group will discuss MRP tool changes, timing for testing, and market participant segmentation for training and testing activities. |
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May 27, 2021
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Engagement Webinar Opportunity for stakeholders to ask questions and provide feedback on the IESO's proposed Independent Review Process for Market Power Mitigation. |
This webinar was presented during the IESO's May stakeholder engagement sessions, see full agenda for more information. |
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April 22, 2021 |
The IESO is recruiting volunteers for a Technical Advisory Group to advise on plans for tool development, training, and testing. |
Interested stakeholders can email engagement@ieso.ca by May 14. Please indicate which sector you represent, and key technical skills or relevant background. |
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April 22, 2021 |
Engagement Webinar The IESO will provide a high-level overview of the upcoming testing and training activities and future engagement opportunities. |
This webinar was presented during the IESO's April stakeholder engagement sessions, see full agenda for more information. |
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April 20, 2021 |
In response to stakeholder feedback on the detailed design the IESO has prepared a historical analysis of where Narrow Constrained Areas may have been located on the IESO-Controlled Grid for the purposes of Market Power Mitigation. This information is for illustrative purposes only and will not constitute a designation for use in the future market. |
Email engagement@ieso.ca with any questions. |
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March 22, 2021 |
The IESO will provide an update on the schedule for when upcoming batches of market rules and market manuals will be available for stakeholder review. |
This webinar was presented during the IESO's March stakeholder engagement sessions, see full agenda for more information. |
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February 23, 2021 |
Engagement webinar for reference levels and quantities Summary of revisions to the written guide and workbooks and overview of the 1x1 consultation process. |
This webinar was presented during the IESO's February stakeholder engagement sessions, see full agenda for more information. |
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December 18, 2020 |
Stakeholder feedback due on the materials presented at the Nov 26th and 27th sessions on reference levels and reference quantities |
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December 15, 2020
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The IESO will provide an update on the technology-specific reference level discussions and summarize stakeholder feedback received on the Market Entry and Prudential Security batch of market rules and manuals.
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This webinar was presented during the IESO's December stakeholder engagement sessions, see full agenda for more information.
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December 7, 2020
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Stakeholder feedback on materials discussed at the October 26th webinar on reference levels and quantities: Market rule amendments – minor changes highlighted in yellow: Revised Market Manuals amendments edits to incorporate stakeholder feedback since October 13th (shown as tracked changes):
Updated guide to reading the amendments - changes explained in column "Incremental Changes since October 13, 2020." |
Review for information
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November 27, 2020
Nuclear Resources session in the morning
Thermal Resources session in the afternoon |
Engagement on Reference Levels: Nuclear Engagement on Reference Levels: Thermal |
Register with engagement@ieso.ca indicating the name of the session(s)
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November 26, 2020
Energy Storage Resources session in the morning Hydro Resources session in the afternoon
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Engagement on Reference Levels: Storage
Engagement on Reference Levels: Hydro |
Register with engagement@ieso.ca indicating the name of the session(s) |
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November 20, 2020 |
Response to feedback on draft written guide and workbook for reference level and reference quantity methodologies |
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November 13, 2020 |
Stakeholder feedback due on the materials presented at the October 30th session |
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November 9, 2020 |
Deadline for stakeholder feedback on the Market Entry and Prudential Security batch of market rules and manuals |
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October 30, 2020 |
Engagement on Reference Levels: Wind and Solar and Dispatchable Loads
Dispatchable Load session (morning)
Wind and Solar session (afternoon) |
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October 26, 2020
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Engagement Webinar The IESO will discuss the process for engagement on the Implementation phase of Market Renewal, followed by a presentation of draft market rules and manuals for Market Entry and Prudential Security. |
This webinar was presented during the IESO’s October stakeholder engagement sessions, see full agenda for more information. |
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October 21, 2020 |
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October 13, 2020
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Release of Market Entry and Prudentials batch of draft materials Market Rules amendments: Market Manuals amendments:
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Feedback on the Market Entry and Prudentials batch is due November 9, 2020
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September 15, 2020 |
Stakeholder feedback due on the written guide and workbooks from the August 27th
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August 27, 2020 |
Engagement kick-off: Market Power Mitigation (Reference Levels and Reference Quantities)
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Feedback due by September 15, 2020 This webinar was presented during the IESO's August stakeholder engagement meetings. Registration list |
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July 24, 2020
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MRP Update – Webinar. Updates on the detailed design, implementation phase engagement approach and reference levels engagement. |
Recorded Presentation This webinar was presented during the IESO's July stakeholder engagement meetings. See agenda for more information. |