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December 18, 2025

Midcontinent Independent System Operator (MISO)

MISO Members Urge Dynamic Line Ratings
MISO members are urging the RTO to implement dynamic line ratings, saying the benefits would outweigh the costs.
MISO Looks Back on Turbulent Summer
With a challenging summer in the rearview, MISO expects more traditional reliability risks this fall while making blueprints for an industry roiled by change.
MISO Readying Intensive Transmission Planning
Two recently announced special transmission planning efforts could have MISO members soon stringing miles of new wires across the footprint.
FERC: No MISO Rules on Mid-queue Fuel Change Studies
FERC said MISO’s Tariff was silent on the issue of whether a generation project can switch from wind to solar while in the RTO’s interconnection queue.
MISO to Finish 2020 Under Budget, Courtesy Pandemic
The pandemic continues to clamp down on MISO’s spending, with the RTO again predicting to be millions under budget by the end of the year.
MISO IMM Rebuts Uneconomic Coal Commitment Studies
Uneconomic self-commitments of coal resources in MISO’s footprint are not occurring at the clip that critics imagine, the RTO’s Monitor said.
MISO, SPP Respond to Monitors’ Seams Studies
MISO’s and SPP’s state regulators gave the RTOs’ staffs an opportunity to respond to their monitors’ suggestions for improving interregional coordination.
MISO, SPP to Conduct Targeted Transmission Study
MISO and SPP announced a yearlong transmission study to identify projects with “comprehensive, cost-effective and efficient upgrades.”
MISO Market Subcommittee Briefs: Sept. 10, 2020
MISO expects adequate resources for the fall, though planned generator outages are expected to be higher this year.
MISO Keeps Advisories in Effect a Week After Laura
MISO staff continue to keep advisories in effect and compile data on the emergency and subsequent rolling blackouts caused by Hurricane Laura.

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