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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

Byron 2 Nuke Refuels in 16 Days, Limerick 2 in 17

LCG, April 24, 2001No one, it seems, knows how to operate nuclear power plants like former submarine commanders. Operators of two Exelon Corp. reactors turned in stunning refueling outages and returned to service over the weekend, the company said yesterday.

The 1,200 megawatt Byron Unit 2 pressurized water reactor near Rockford, Ill. returned to service on Sunday after completing a refueling outage in just 15 days, 18 hours, the quickest such outage in the history of U.S. commercial nuclear energy. During those 16 days, workers also found time to complete modifications increasing the reactor's output by 5 percent, in addition to performing thousands of maintenance and inspection functions.

The 1,200 megawatt Limerick Unit 2 boiling water reactor northwest of Philadelphia was back on line late Friday after completing a refueling outage of its own in just 16 days, 8 hours. That was the fastest-ever refueling for a boiling water reactor in the U.S.

"Exelon Nuclear intends to do its part to keep the lights on this summer," said Oliver D. KingsleyJr., president and chief nuclear officer of Exelon Nuclear. "These nuclear plants are particularlyreliable in the kinds of weather extremes that we sometimes see in the Midwest and mid-Atlanticregions in the summer."

Kingsley, who came to Exelon in the merger between Peco Energy Co. and Unicom Corp., had taken over nuclear operations for Unicom's Commonwealth Edison Co. subsidiary in 1997, when that utility's nuclear program was in a shambles. He quickly turned it around, and ComEd began generating more electricity than ever, with two fewer reactors.

Kingsley is a former U.S. Navy submarine commander. So is his boss, Exelon co-chief executive Corbin A. McNeill Jr., who had shaped up the nuclear program with Peco.

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