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December 5, 2025

Midcontinent Independent System Operator (MISO)

Hanson Inc.
Ameren Argues Exclusive Rights to MISO Illinois Competitive Tx Projects
Ameren Illinois argued to FERC that it should have dibs on sections of two competitive long-range transmission projects worth almost $2 billion from MISO’s second portfolio, claiming Illinois’ “first in the field” doctrine is tantamount to a right of first refusal law.
We Energies
MISO Prepares for More Projects than Study Slots in 1st Queue Express Lane
MISO expects to exceed its quarterly project maximum when it begins accepting the first generation project proposals under its interconnection queue express lane.
MISO
MISO Skirts Max Gen Emergency in July Heat
MISO issued a slew of warning notices and operating instructions — especially in the South region — to help deal with oppressive July heat, forced generation outages and strained transmission.
© RTO Insider LLC
MISO Revising Transmission Futures After Repeal of Tax Credits
The federal government’s rollback of incentives for renewable energy has thrown a wrench into MISO’s work to develop four new transmission planning scenarios. 
SPP
FERC Approves SPP’s ERAS Process, Accreditation
SPP is celebrating several recent FERC orders that have strengthened its resource adequacy framework that it says will secure a “reliable energy future” for its region.
Invenergy
DOE Pulls $4.9B in Funding for Grain Belt Express
DOE has terminated its $4.9 billion conditional loan commitment for the long-delayed Grain Belt Express project, saying it is “not critical” for the federal government to support the project.
Invenergy
FERC Approves MISO Interconnection Queue Fast Lane
FERC approved a controversial MISO proposal to create a fast lane for certain reliability-related projects in the RTO’s interconnection queue — just two months after rebuffing an earlier version of the plan.
© RTO Insider
FERC Sides with Market Monitor over MISO in Compensation Dispute
FERC sided with MISO IMM David Patton, denying a petition from MISO that would have prevented the RTO from reimbursing the Monitor for reviewing the market impact of transmission planning.
Potomac Economics
MISO Tries to Ward Off DR Fraud with New Testing Regime
MISO has filed with FERC to impose more exacting testing on its demand response resources in an effort to deflect fraud.
© RTO Insider LLC
FERC Rejects Voltus Appeal for Interim MISO Order 2222 Compliance
MISO is free to keep working toward its 2030 goal of fully incorporating aggregators of distributed energy resources into its markets without an interim participation option.

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