Energy Detailed Design Engagement
The Energy work stream of the Market Renewal Program (MRP) will improve the way electricity is priced and scheduled in order to meet Ontario’s energy needs reliably, transparently and efficiently.
Since posting the final high-level design documents for the Energy work stream in August 2019, the IESO has shifted its focus both internally and with its active stakeholder community on developing the specific changes and details required to implement these initiatives in the IESO-administered market.
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 (MRP) and future IESO initiatives.
Get Involved
Update January 28, 2021: The detailed design engagement has completed. You can visit implementation engagement page to learn about current engagement opportunities. For more information about how to become involved or to provide comments on this initiative, please contact engagement@ieso.ca.
Documents referenced on this page, but not posted, can be obtained by contacting engagement@ieso.ca with a link to the web page that lists the document and advise whether it needs to be provided in an accessible format. Please allow a minimum of one business day for a response.
Schedule of Activities
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Date Agenda |
Activities | Expected Actions |
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July 15, 2021 |
Deadline for stakeholder feedback on topics presented at the June 24th webinar: Location-specific settlement of Global Adjustment and Online Settlement Form changes. |
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June 30, 2021 |
Release of the final design update for the Settlement Disagreements and Resettlements Process. |
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June 24, 2021
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Engagement Webinar Summary of revisions included in the final Settlement Disagreements and Resettlements document and next steps for the Replacement of the IESO’s Settlement System. |
This webinar was presented during the IESO's June stakeholder engagement sessions, see full agenda for more information. |
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March 23, 2021 |
Stakeholder feedback due on materials presented at the February 23rd webinar No stakeholder feedback received |
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February 23, 2021 |
Replacement of the IESO’s Settlement System (RSS) webinar Walkthrough of the limitation period design document. |
This webinar was presented during the IESO's February stakeholder engagement sessions, see full agenda for more information. |
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January 28, 2021 |
Release of final detailed design documents.
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January 22, 2021 |
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December 28, 2020 |
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December 15, 2020 |
The IESO will summarize stakeholder feedback on the draft detailed design documents and provide preliminary information on the independent review process for market power mitigation reference levels. |
This webinar is being presented during the IESO's December stakeholder engagement sessions, see full agenda for more information. |
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December 2, 2020 |
Final Feedback Review - all draft design documents
Pre-Dispatch Calculation Engine Detailed Design Document |
Review period: Sept 30 - Dec 2 |
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December 2, 2020 |
IESO Response to Feedback, Part #2 (OBDI, GMOI, MPM, MK STLMT) IESO Response to Feedback (Day-Ahead Market Calculation Engine) |
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October 30, 2020 |
Deadline for stakeholder feedback on the Real-Time Calculation Engine design document |
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October 26, 2020
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Engagement Webinar The IESO will be available for a Q&A session for stakeholders on the Pre-Dispatch Calculation Engine Detailed Design Document. |
This webinar is being presented during the IESO’s October stakeholder engagement sessions, see full agenda for more information. |
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October 20, 2020 |
Stakeholder feedback on materials discussed at the September 29th webinar
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October 19, 2020 |
IESO Response to Feedback, Part #1 (OBDI, GMOI, MPM, MK STLMT) |
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September 30, 2020 |
Release of detailed design document
Please see the detailed design page to download the feedback form |
Feedback on the Pre-Dispatch Calculation Engine is due December 2, 2020.
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September 29, 2020 |
Replacement of the IESO’s Settlement System (RSS) |
This webinar was presented during the IESO's September stakeholder engagement sessions, see full agenda for more information. |
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September 29, 2020 |
Engagement Webinar This webinar will present an implementation phase engagement update and detailed design Real-Time Calculation Engine draft document Q&A. |
This webinar is being presented during the IESO's September stakeholder engagement sessions, see full agenda for more information. |
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September 24, 2020
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Deadline for stakeholder feedback on the DAM Calculation Engine design document
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August 31, 2020
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Release of detailed design document
Please see the detailed design page to download the feedback form |
Feedback on the Real-Time Calculation Engine is due October 30, 2020.
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August 27, 2020 |
MRP Calculation Engine - Webinar 9:00 a.m. - MRP Calculation Engine Technical Session In this technical session the IESO will answer stakeholder questions on the background reading on:
10:30 a.m. – Break 11:00 a.m. – MRP Detailed Design Document: DAM Calculation Engine In this webinar the IESO will answer questions of clarification on the DAM Calculation Engine Detailed Design Document to inform written feedback. |
Recorded Presentation – Part 1 Recorded Presentation – Part 2 This webinar is being presented during the IESO's August stakeholder engagement meetings. See agenda for more information. Registration list |
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July 27, 2020
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Release of detailed design document
Please see the detailed design page to download the feedback form. |
Feedback on the Day-Ahead Market Calculation Engine is due September 24, 2020.
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July 24, 2020 |
MRP Update Meeting - Webinar |
Recorded Presentation This webinar is being presented during the IESO's July stakeholder engagement meetings. See agenda for more information. Registration List |
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July 24, 2020
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Stakeholder Feedback due Detailed Design Documents: Offers, Bids and Data Inputs, Grid and Market Operations Integration, Market Power Mitigation, Market Settlement Please see the detailed design page to download the feedback form.
Offers, Bids and Data Inputs
Grid and Market Operations Integration
Market Power Mitigation
Market Settlement
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June 26, 2020 |
Webinar This session will support stakeholders in their review of the four detailed design documents which are open for feedback until July 24. The IESO will support questions on the draft design documents: Offers, Bids and Data Inputs, Market Power Mitigation, Grid and Market Operations Integration, and Market Settlement.
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Recorded Presentation - Part 1 This webinar is being presented during the IESO's June stakeholder meetings. See agenda for more information. Registration list |
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May 21, 2020 |
MRP Update Meeting - Webinar
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This webinar is being presented during the IESO's May stakeholder engagement meetings. See agenda for more information. |
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May 21, 2020
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Stakeholder Feedback Due Please see the detailed design page to download the feedback form. |
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May 11, 2020 |
Release of detailed design document
Please see the detailed design page to download the feedback form. |
Feedback on the Market Settlement document is due July 31, 2020 |
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May 5, 2020 |
Release of detailed design documents
Please see the detailed design page to download the feedback form. |
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April 30, 2020 |
Engagement Session - Publishing and Reporting |
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March 27, 2020
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IESO Response to Stakeholder Feedback on the first batch of detailed design documents:
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March 26, 2020 |
Release of MRP Energy draft detailed design document Please see the detailed design page to download the feedback form |
Feedback on the P&R document is due May 21, 2020 |
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March 6, 2020 |
Stakeholder Feedback Due Detailed Design Documents: Prudential Security, Market Billing and Funds Administration Stakeholder Feedback: Prudential Security:
Market Billing and Funds Administration
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February 28, 2020 |
Stakeholder Feedback Due Detailed Design Documents: Authorization and Participation, Facility Registration, Revenue Meter Registration Stakeholder Feedback: Authorization and Participation:
Facility Registration:
Revenue Meter Registration:
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February 27, 2020 |
Technical Session: Pseudo Units Reading Material: Pseudo Units Stakeholder Feedback (included in meeting summary)
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February 13, 2020 |
Technical Session: Negative Pricing Reading Material: Negative Pricing Stakeholder Feedback (included in meeting summary)
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February 6, 2020 |
Technical Session: Hydroelectric Dispatch Data (Part 2) Reading Material: Hydro Dispatch Data (Part 2) Stakeholder Feedback (included in meeting summary)
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February 3, 2020 |
Engagement Meeting Detailed Design Documents: Prudential Security, Market Billing and Funds Administration
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January 28, 2020 |
Engagement Meeting Detailed Design Documents: Authorization and Participation, Facility Registration, Revenue Meter Registration
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January 23, 2020 |
Technical Session: Physical Withholding Reading Material: Physical Withholding (Market Power Mitigation)
Stakeholder Feedbcaack (included in meeting summary)
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December 10, 2019 |
Webinar Structure of Design Documents |
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November 28, 2019 |
Release of detailed design documents
Please see the detailed design page to download the feedback forms. |
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November 25, 2019 Meeting Summary |
Engagement Meeting Stakeholder Feedback (included in meeting summary)
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November 15, 2019 |
Engagement Meeting (half day)
Stakeholder Feedback (included in meeting summary)
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November 14, 2019 |
Engagement Meeting (full day) Stakeholder Feedback (included in meeting summary)
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November 1, 2019 |
Engagement Meeting (full day) Stakeholder Feedback (included in meeting summary)
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September 27, 2019 Meeting Summary |
Engagement Meeting (Market Power Mitigation - Conduct & Impact Thresholds and Reference Levels) Stakeholder Feedback (included in meeting summary)
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September 13, 2019
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Email to stakeholders on detailed design engagement
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August 22, 2019 |
Engagement Plan posted |