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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

Operators Shut Down Niagara Mohawk's Nine Mile Point 1

LCG, Oct. 3, 2000--Operators manually shut down the Nine Mile Point Unit 1 nuclear power plant at 6:25 a.m. yesterday after the unplanned opening of a reactor relief valve, Niagara Mohawk Power Corp. said.

The opening of the relief valve lead to increased water levels in the plant's drywell, a structuresurrounding the reactor and designed to collect water discharged from the reactor. The increasedwater level in the drywell caused operators to declare, as required, an "Unusual Event" and notify the Nuclear Regulatory Commission.

The report was filed at 7:12 a.m. and noted that the reactor was manually "scrammed" from an operating level of less that 1 percent of capacity. It was just beginning the restart process following a maintenance outage.

Later yesterday, Niagara Mohawk reported that Nine Mile Point 1 was in cold shutdown mode and that the Unusual Event was terminated at 9:05 a.m.

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