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TerraPower Announces Start of Construction on First Utility-Scale Advanced Nuclear Plant in Wyoming

LCG, April 23, 2026--TerraPower announced today the official start of construction on its Kemmerer Unit 1 nuclear power plant, which could be the first utility-scale advanced nuclear power plant in the United States. In early March, the Nuclear Regulatory Commission (NRC) announced that it had authorized the staff to issue a construction permit for Unit 1 commercial nuclear power plant in Kemmerer, Wyoming.

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TVA Announces Two Energy Storage Agreements Totaling 425 MW/1,700 MWh

LCG, April 22, 2026--The Tennessee Valley Authority (TVA) yesterday announced two new, 20-year agreements for a 225 MW/900 MWh battery energy storage system (BESS) project in East Tennessee and for a 200 MW/800 MWh BESS project in northern Alabama. Both projects are planned to commence commercial operations in 2029.

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Industry News

Midwest ISO Recruits 8 New Members

LCG, March 5, 2001--The Midwest Independent Transmission System Operator, which has watched some of its largest members defect in favor of the rival, profit-motivated Alliance Regional Transmission Organization, got a lift last week when eight utilities applied to join up.

The Midwest ISO announced on Friday that applications had been received from Indianapolis Power and Light Co., Indiana Municipal Power Agency, Lincoln Electric System, Minnesota Power Co., Otter Tail Power Co., Sunflower Electric Power Corp. and UtiliCorp United.

The rush to enlist was not exactly a manifestation of volunteerism. As the result of a settlement brokered last week by the Federal Energy Regulatory Commission, the utilities were given until February 28 to apply for membership in either the Midwest ISO or Alliance in order to qualify for a single pricing structure.

Under the settlement, Midwest ISO and Alliance agreed to exist separately but coordinate their activities, including setting up a single pricing structure that would permit market participants to deal with either organization as if the two were one RTO.

The settlement also allowed Illinois Power Co., Ameren Energy Corp. and Commonwealth Edison Co. to depart the Midwest ISO in favor of Alliance.

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