Planning Resource Auction
MISO’s annual Planning Resource Auction (PRA) demonstrates sufficient resources and allows market participants to sell capacity, via an auction, to other market participants who may expect a shortfall. MISO sets the capacity requirements in its region for each season of the June 1 to May 31 time period.
MISO bases the region’s energy needs, including a planning reserve margin, on multiple studies including members’ demand forecasts for peak use. It determines the reserve margin from the annual Loss of Load Expectation study. MISO accepts auction offers the last four business days of March, applies constraints calculators, then approves or rejects the transactions within the first 20 business days of April.
| PRA Auction | Offer/ Bid Period Opens | Offer/Bid Period Closes | Auction Results Posted | Notes |
| MISO PRA 2025-2026 | March 26th, 2025 at 8AM EPT | March 31st, 2025 at 6PM EPT | April 28th, 2025 | MISO guidelines for timing of PRA Capacity Auctions are as follows:
1) PRA Offer window opens 3 business days prior to the last business day in March. 2) PRA Offer window closes on the last business day in March. 3) PRA Results are posted on the 20th business day of April. |
| MISO PRA 2026-2027 | March 26th, 2026 at 8AM EPT | March 31st, 2026 at 6PM EPT | April 28th, 2026 |
Updated September 5, 2024
Notes
- ESAI Power is providing this information to assist you in understanding the schedules for different ISO/RTO Energy Auctions.
- ESAI Power urges all market participants to check all market rules and ensure that you are complying with all requirements for each ISO/RTO.
More Information
To confirm dates for MISO Auctions – please consult the MISO Resource Adequacy website here:
https://www.misoenergy.org/planning/resource-adequacy2/resource-adequacy/
To learn more about MISO, what they do, and their vision, click on the link below:
https://www.misoenergy.org/meet-miso/about-miso/
About ESAI Power
ESAI Power is a market research and consulting firm that delivers focused analysis of the wholesale power markets in PJM, NYISO, ISO-NE and MISO. Since 2001, ESAI has been providing market-focused research product content and custom consulting services for power market participants including investors (banks, private-equity, & hedge funds) & developers, generation owners & operators, utilities & retail electricity suppliers, regulators & RTOs, traders, and corporate energy buyers.