MISO
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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.
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.
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.
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.
The cost estimate for MISO’s 2025 Transmission Expansion Plan has fallen slightly from previous estimates to $12.36 billion.
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 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.
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.
MISO is poised to close the door on summer with an almost 122-GW peak while issuing several capacity advisories for MISO South.
MISO announced that its first interconnection queue express lane application window turned up 47 projects at a little more than 26.5 GW of proposed new capacity, with natural gas generation accounting for about 20 GW.
FERC granted NextEra Energy’s request to waive certain rules under MISO’s tariff to allow the company to restart its Duane Arnold nuclear plant by the end of 2029.
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