Several MISO stakeholders are criticizing Tariff filings the RTO plans to make by the end of the year to free up an additional 5 to 10 GW of capacity.

Stakeholders are skeptical of MISO's proposed Tariff revisions imposing stricter outage rules and load-modifying resource requirements.

MISO leadership has not yet decided on how it can improve resource availability, though it is evaluating several possible remedies, the RTO said.

MISO’s Advisory Committee appeared split over whether the RTO should assume greater authority in granting planned outages.