Search
December 5, 2025

Midcontinent Independent System Operator (MISO)

© RTO Insider 
Stakeholders Question MISO Plan to Reassign LSEs’ MW Duties Based on Risky Periods
MISO stakeholders are skeptical of the RTO’s proposed new approach to divvying up reliability obligations among load-serving entities based on evolving system risk.
Entergy
Southern Renewable Group Cautions MISO State Regulators Considering SEEM
The Southern Renewable Energy Association appeared before Entergy’s state regulators to urge them to think twice before considering leaving MISO for the Southeast Energy Exchange Market.
MISO
IMM: NERC Reliability Assessment Still Overstating MISO Risk
MISO’s Independent Market Monitor has expressed lingering dissatisfaction with NERC’s Long-Term Reliability Assessment, even with potentially corrected values.
© RTO Insider 
MISO Monitor Targets Tx Congestion in State of the Market Report
MISO’s Independent Market Monitor has released four new market improvement recommendations concerning transmission congestion, the Midwest-South transmission link, market-to-market coordination and price settlements after grid devastation.
© RTO Insider
New MISO Stakeholder Code of Conduct Forbids Rude or Callous Language
MISO debuted a code of conduct for its stakeholder meetings that forbids rude or callous language, deliberate meeting disruptions or disregarding committee chairs’ instructions.
© 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.
ITC Holdings
FERC Denies MISO, SPP Waiver of Joint Study Process
FERC denied a waiver request by MISO and SPP to modify the Coordinated System Plan under their joint operating agreement, saying it is not the “appropriate vehicle” to improve the process.
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.”

Want more? Advanced Search