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2023 Capacity Auction Window and Post-Auction Report Reminder

November 23, 2023

The 2023 Capacity Auction offer submission window will open at 9:00 AM EST on November 29 and close at 11:59 PM EST on November 30. The IESO is seeking to procure 1,400 MWs of summer capacity and 850 MWs of winter capacity in this upcoming auction with targets expected to steadily increase in future auctions.

Organizations that have completed the pre-auction registration processes can offer qualified capacity into the 2023 Capacity Auction for the summer 2024 and winter 2024/2025 obligation periods via Online IESO.

The IESO will publish the results of the 2023 Capacity Auction via the Post-Auction Report on Thursday, December 7, 2023. This report will be available on the IESO’s Public Reports site. Successful capacity auction participants will also be issued a private post-auction report with the capacity obligations for each of their capacity auction resources, made available through the IESO’s Participant Reports site.

Further details on how to complete the Capacity Auction participation activities can be found in the Quick Takes guide and major milestones are listed in the Capacity Auction Timelines document. For more information, please visit the Capacity Auction webpage.

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