Search
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 Interconnection Queue Drops to 215 GW on Tax Incentive Phaseout
MISO’s generator interconnection queue has fallen to 215 GW as developers cut back on projects in response to the federal phaseout of renewable energy tax incentives, RTO leadership said.
MISO
MISO Kicks off South’s Long-range Tx Plan with More Restrained Approach
MISO will start evaluating its South region for long-term transmission needs in 2026, beginning with Louisiana, the RTO announced before its Board of Directors.
© RTO Insider 
MISO IMM: Capacity Prices Efficient Despite Yearslong Error
MISO’s Independent Market Monitor said the recently uncovered, eight-year-old repeat error in the RTO’s capacity market that caused a $280 million impact in this year’s auction alone is unfortunate but insisted the resulting prices were efficient.
Entergy Corp.
Texas PUC Approves Entergy Gas Plants, Caps Costs
Texas regulators have approved Entergy Texas’ request to build two natural gas-powered units in MISO’s portion of the state, but they have limited the construction costs eligible for recovery to a combined $2.4 billion.
© RTO Insider LLC
MISO Discloses $280M Error, Over-procurement in 2025/26 Capacity Auction
MISO said a yearslong software error caused it to clear more capacity than intended in past capacity auctions and which has resulted in an approximate $280 million impact to market participants in this year’s auction.
Consumers Energy
Consumers Energy to Offload 13 Michigan Hydro Dams to Investment Firm for $1 Each
After years of looking for a buyer, Consumers Energy announced it struck a $13 deal to sell its fleet of 13 hydroelectric dams in Michigan to a Bethesda, Md., private equity firm.
MISO
MISO 2025 Tx Expansion Estimate Drops Slightly to $12.4B
The cost estimate for MISO’s 2025 Transmission Expansion Plan has fallen slightly from previous estimates to $12.36 billion.
Meta
MISO Selects 10 Gen Proposals at 5.3 GW in 1st Expedited Queue Class
MISO has assembled the 10 generation finalists to enter its first interconnection queue fast track. The list includes five natural gas proposals, three solar farms, one wind farm and a battery storage facility.
MISO
MISO: Market Platform Replacement will be Overbudget, Stretch into 2028
MISO said its nine-year effort to replace its market platform will exceed original budget contingencies and won’t be completed until 2028, three years later than previously predicted.
© RTO Insider 
MISO Seeking Realistic Gen Buildout for Tx Planning Futures
MISO said its set of 20-year transmission planning futures must be further fine-tuned after the Trump administration’s repeal of tax credits for renewable generation.

Want more? Advanced Search