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December 23, 2025

Midcontinent Independent System Operator (MISO)

MISO Reliability Subcommittee Briefs: Aug. 1, 2019
MISO is still reviewing FERC’s recent proposal that NERC develop cold weather reliability standards.
MISO Firming Up 1st SATA Ruleset
MISO is nearing its goal of an October FERC filing to solidify its first, limited set of storage-as-transmission assets rules.
Missouri Investigating Self-Scheduling in MISO, SPP
Missouri regulators are completing a probe into the self-commitment and self-scheduling of generation into wholesale energy markets.
MISO Studying Projects to Cut North-South Tx Reliance
MISO is evaluating nine projects to supplement or substitute for the contract path on SPP transmission linking its Midwest and South regions.
MISO, SPP States Ponder Look at Interregional Planning
MISO and SPP regulators are considering an analysis of the interregional planning process to supplement the seams coordination analysis already underway.
FERC Rebuffs ITC Call to Restore Full ROE Adders
FERC affirmed a previous ruling that found three ITC Holdings subsidiaries were no longer fully independent, disqualifying them from a transco adder.
MISO Mulling Next Steps on Cost Allocation Overhaul
MISO will still pursue major aspects of a transmission proposal that FERC rejected, but is debating keeping its proposed local economic project type.
MISO: Grid Can be Stable at 40% Renewables
MISO’s grid can withstand major reliability risks even when renewables reach 40% of the generation mix, the RTO's staff said.
FERC OKs Changes to MISO-SPP Joint Study Process
FERC approved changes to the MISO-SPP joint operating agreement intended to improve an interregional planning process that has yet to produce projects.
MISO Looks to Prune Competitive Tx Process
MISO is wagering that proposed rule changes will cut down on the time and expenses spent evaluating transmission proposals.

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