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December 5, 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 
MISO Ready to Discontinue Seams Stakeholder Group
After about 15 years, MISO appears ready to say goodbye to its stakeholder-run Seams Management Working Group.
MISO
MISO to Axe Energy Efficiency from Capacity Market
MISO said it no longer will recognize energy efficiency as a capacity resource beginning with the 2026/27 auction.
Invenergy
Missouri AG Opens Inquiry into Grain Belt Express
Missouri's attorney general says he has opened an investigation into Invenergy’s Grain Belt Express transmission project, an 800-mile, HVDC line that has been under development since 2010.
EDP Renewables
Court Says Mich. TO Cannot be Sole Owner of Upgrades on Shared Line
A yearslong dispute over who gets to own a 345-kV network upgrade in Michigan had the D.C. Circuit Court of Appeals meditating on the definitions of “system” versus “facility.”
© RTO Insider
MARC Confronts Public Perception, Affordability, ‘Post-DEI’ and Nuclear Options
The 2025 Mid-America Regulatory Conference tackled themes on meaningful public engagement, nuclear options, bill affordability and DEI programs falling out of favor.
Shutterstock
FERC Says MISO’s Interconnection Compliance Lacking, Approves General Design
FERC told MISO it needs a few more edits to its queue rules to be compliant with the commission’s wide-ranging order to streamline generator interconnection.
Consumers Energy
Half of MISO States Oppose DOE Order on Campbell Plant, Add Rehearing Request
Half of the Organization of MISO States have challenged the Department of Energy’s directive to keep the J.H. Campbell coal plant in Michigan operating through late August.
MISO
MISO Declares Max Gen Emergency in Heat Wave
MISO Midwest entered emergency status during the RTO’s first serious heat wave of the summer.
La. PSC
MISO Debates What-ifs, Vows Improvements in Front of La. PSC After Load Shed
MISO leadership again promised to step up the RTO’s advance communication of tight system conditions following its four-hour load-shed directive for about 600 MW in Greater New Orleans.
© RTO Insider
NERC Responds to MISO IMM’s LTRA Criticism

NERC acknowledges it used mismatched data to calculate MISO's risk level in its Long-Term Reliability Assessment and plans to release a revised report soon.


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