MISO’s Monitor said the RTO would be better served by an even higher planning reserve margin, two days after it recorded its first emergency of the summer.

MISO will evaluate the merits of defining new seasonal reliability criteria and implementing a sub-annual capacity construct, stakeholders learned.

For the first time, MISO has found a loss-of-load risk outside of summer months, and said it may be more evidence for seasonal capacity supplies.

MISO executives said they continue to seek ways to improve the RTO’s response to an increasing number of emergency events.

MISO says the new process to better contain flows on its North-South settlement transmission path is working as intended.

MISO want to improve how owners of LMRs interact with a communications system that some think hampered the RTO’s response to a grid emergency this winter.

MISO’s most recent maximum generation emergency is yet another portent of its increasing need to rethink grid operations, execs told the Board of Directors.

MISO foresees a “modest probability” it will declare a systemwide maximum generation event this spring.

MISO managed its eighth maximum generation event in six years last month despite the difficulty of pulling together the forecast leading up to the episode.

Record-breaking cold brought multiple appeals for conservation from utilities in the northern portions of MISO's footprint.