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December 15, 2025

MISO

The Midcontinent Independent System Operator is a regional transmission organization that plans transmission projects, administers wholesale markets for its membership and manages the flow of electricity in Arkansas, Illinois, Indiana, Iowa, Kentucky, Louisiana, Michigan, Minnesota, Mississippi, Missouri, Montana, North Dakota, South Dakota, Texas and Wisconsin. 
© RTO Insider LLC
MISO Tempers 2026 Budget Plan
MISO has trimmed its annual budget, now expecting to spend a little less than $431 million in 2026, down from nearly $450 million.
© RTO Insider LLC
MISO Usage, Outages Up in Fall 2025
MISO and its Monitor tracked a rise in energy consumption in fall 2025 and reviewed some operational rough patches, while the RTO explained why its machine-learning risk predictor remains a work in progress.
MISO
MISO Members: Large Loads are Certain, Require Rules Against Cross-subsidization
MISO members don’t doubt that large loads will turn up at the beginning of the next decade and are occupied with how the industry can make sure ratepayers don’t subsidize supersized customers.
Minnesota Power
MISO Launches 2nd Review of Long-range Tx Project for Cost Overruns
MISO opened another review of a second project from its first long-range transmission plan portfolio, prompted again by construction cost overruns.
Stantec
Louisiana Gen Co. First to Lodge Complaint Over MISO Auction Error and Price Corrections
Louisiana-based power generator Pelican Power is the first to register a complaint over MISO’s yearslong miscalculation in its capacity auctions in an effort to stop the RTO’s retroactive pricing corrections.
Ameren Missouri
MISO Declines Stakeholder Ask for Pause on 2025 Queue to Clear Backlog
MISO said it will not postpone the kickoff of a study on its 2025 cycle of interconnection requests, rebuffing stakeholders’ requests for a slowdown to clear some of the queue’s four-year backlog.
MISO
MISO Floats ‘Zero Injection’ Agreements to Bring Co-located Gen Online
MISO is considering a new type of interconnection agreement for generation built on site and strictly for new large loads.
Entergy
MISO Accepts 6 GW of Mostly Gas Gen in 2nd Queue Fast Lane Class
MISO will study 6 GW of mostly natural gas-fired generation projects in the second group of entrants under its interconnection queue fast track.
Ameren Missouri
Mo. PSC Adds Consumer Protections to Ameren Large Load Rate Plan
The Missouri PSC unanimously approved a settlement agreement on rates for Ameren’s large load customers that insulates ratepayers from most costs associated with supplying data centers’ electricity needs.
Shutterstock
FERC Allows MISO to Increase Project Count in Queue Fast Lane
FERC approved MISO’s proposal to increase the number of generation projects it may study under its expedited interconnection queue lane from 10 to 15 per quarter.

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