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At 97 percent power a standby service water pump tripped the instant its own diesel generator started at a Mississippi reactor, where that single trip left the emergency core spray system inoperable
21+ hour, 35+ min ago (742+ words) A plant room under fluorescent light, concrete floor, a pump the size of a small car sitting on a pad. It has not run in weeks. That is the point of it. On a winter evening a crew starts a…...
GSE Solutions presents ANS webinar on using data validation to increase nuclear plant power output
4+ day, 9+ hour ago (221+ words) The webinar focused on DVR methodology and its direct application to MUR uprates, one of the main regulatory pathways for increasing a nuclear plant’s licensed output without major capital modifications. The ANS Supplier Showcase series is built for exactly this…...
University of South Florida laser system passes TVA testing for nuclear plant ice condenser maintenance
1+ week, 5+ day ago (592+ words) A precision laser system built by University of South Florida engineers has cleared a critical milestone: the Tennessee Valley Authority has successfully tested the technology for use in nuclear power plant ice condenser inspections. The system is designed to assist…...
Three advanced reactor startups describe path to criticality at NECX 2026, as Kentucky, New York, and Utah announce nuclear expansion plans
1+ week, 5+ day ago (405+ words) When the DOE launched its Reactor Pilot Program, Aalo Atomics was already working toward criticality—just on a much slower clock. The company had originally targeted 2027. Then Executive Order 14301 landed, calling for at least three reactors to hit criticality by…...
Riggers in Somerset threaded a 551 ton reactor vessel through a hatch barely taller than the vessel itself, and it settled onto its support ring with 1.6 inches of clearance on either side
1+ week, 5+ day ago (835+ words) The opening in the concrete is a rectangle about 64 feet tall. The object going through it is 42 feet of forged steel weighing 551 tons. Neither of those numbers is the interesting one. The interesting number is what was left over at…...
Both recirculation pumps at Washington's only nuclear plant tripped in the same instant before 3 in the morning, and the part that took a 1,207 megawatt reactor off the grid was an electrical filter in a glycol cooling line
2+ week, 6+ day ago (794+ words) Drive cabinets that control At 2:49 in the morning the control room lost both pumps at once. A boiling water reactor will run on a single recirculation pump. It will not run on none, and the whole design assumes that losing…...
Mochovce Unit 4 in Slovakia achieves first criticality, reaching minimum controlled power level
3+ week, 5+ day ago (584+ words) At 10:10 p.m. on August 6, Slovakia’s Mochovce Unit 4 reactor achieved criticality—the point at which a nuclear chain reaction becomes self-sustaining. Twenty-one minutes later, operator Slovenské Elektrárne confirmed the reactor had reached its minimum controlled power level, clearing a key milestone in…...