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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

'Credible' Threat Puts Three Mile Island on High Alert

LCG, Oct. 18, 2001--A "credible" threat against the Three Mile Island nuclear power facility yesterday prompted federal officials to place the plant on an extra-high state of alert last night. The alert included shutting down the airspace in the area.

The airports at Harrisburg and Lancaster, Pa., were both closed for four hours from about 9:00 p.m. until 1:00 a.m. this morning while military aircraft reportedly patrolled area skies and FBI and state police guarded the plant.

Harrisburg International Airport and Lancaster Airport were both reopened this morning.

Three Mile Island, along with all other U.S. nuclear power plants, had been in a "heightened" state of security since the September 11 terrorist attacks on the World Trade Center in New York and the Pentagon in Washington.

Last night's alert tightened security further at Three Mile Island, according to officials who said they had no way of knowing when the extra measures would be lifted.

Ralph DeSantis, a spokesman for Three Mile Island, declined to discuss the type of threat received or the additional security measures that were taken, but said "It was deemed to be a credible threat." He added that Three Mile Island was the only nuclear power plant threatened.

Nuclear Regulatory Commission spokeswoman Diane Screnci said this morning that the agency had warned Three Mile Island at around 7:00 p.m.

Federal Aviation Administration spokeswoman Laura Brown said that the airport shutdown had been part of a "temporary flight restriction" that grounded aircraft within a 20-mile radius of the plant.

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