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NuScale Power Achieves Standard Design Approval from NRC for 77 MW SMR

LCG, May 30, 2025--NuScale Power Corporation (NuScale), a leading provider of advanced small modular reactor (SMR) nuclear technology, yesterday announced that it has received design approval from the U.S. Nuclear Regulatory Commission (NRC) for its uprated 77 MW power modules. NuScale states that it remains the only SMR technology company with design approval from the NRC, and the company remains on track for deployment by 2030, with 50- and 77-MW SMR options.

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EIA Presents Analysis of California's Solar and Wind Power Curtailment Challenges

LCG, May 29, 2025--The U.S. Energy Information Administration (EIA) released an analysis yesterday showing that the California Independent System Operator (CAISO), the grid operator for most of the state, is increasing its curtailment of the rapidly growing solar- and wind-powered generation facilities in order to balance electricity supply and demand, which is necessary to maintain a stable electric system.

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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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