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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

Iowa Utility Cuts Service as Power Supply Falters

May 15, 2001Alliant Energy Corp. declared a power conservation alert yesterday for its customers in Iowa and began curtailing service as the result of insufficient power supply and transmission constraints. The company was unsure of the root cause of the problem.

"What we're looking into is whether there is a problem with a power plant somewhere," said John Ruff, an Alliant spokesman. The company began shutting off power to customers, including schools, yesterday morning.

Alliant is the company formed by a merger between Wisconsin Power & Light Co. and two Iowa utilities. The company was among supporters of legislation that would have streamlined the process of building new power plants in Iowa, but the measure died in the Iowa legislature when lawmakers adjourned for the year earlier this month.

Ruff said Alliant had been notified of a transmission problem by the Mid-American Interconnected Network, or MAIN, which oversees reliability of electricity transmission in a region including all of Illinois and parts of Iowa, Wisconsin, Minnesota, Michigan and Missouri.

MAIN said a number of Iowa power plants were shut down yesterday, which caused an increase in power imports from Illinios. That has caused some very heavy loading on transmission lines into Iowa in the Quad Cities area," said MAIN spokeswoman Jackie Olson.

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