Vistra said MISO’s “irreparably dysfunctional” capacity auction design deserves blame for its decision to shutter the last of its Midwest coal plants.

MISO and its Independent Market Monitor are at odds over how and how quickly the RTO should address its resource adequacy, board members heard Tuesday.

MISO said a new rule prohibiting resources on extended outages from offering capacity contributed to the historic spike in Zone 7 prices in April’s PRA.

Stakeholders asked if MISO’s new long-term generation outage policy played a role in driving up Michigan capacity prices in the Planning Resource Auction.

MISO’s plan to crop some load-modifying resources’ capacity credits remains unpopular with stakeholders, prompting the RTO to postpone the accreditation.

MISO is contemplating creating a seasonal design for its resource adequacy construct to manage potential reliability risks outside of the summer months.

MISO’s capacity auction marked the RTO’s first clearing price set by its cost of new entry, as prices in the Lower Peninsula rocketed to almost $260/MW-day.

MISO is looking into a forward market mechanism and improvements to its scarcity and emergency pricing under its resource availability and need project.

MISO is preparing to make two resource adequacy filings with FERC aimed at making its capacity resources more readily available.

A report from MISO concludes stakeholders will need to quickly adjust the RTO’s capacity construct to accommodate a resource mix dominated by renewables.