The reactor building and the turbine building seen in October 2024 as employees worked on Vogtle Unit 3’s first-ever refueling outage. (Photo: Dot Schneider)
Southern Nuclear was first when no one wanted to be.
The nuclear subsidiary of the century-old utility Southern Company, based in Atlanta, Ga., joined a pack of nuclear companies in the early 2000s—during what was then dubbed a “nuclear renaissance”—bullish on plans for new large nuclear facilities and adding thousands of new carbon-free megawatts to the grid.
In 2008, Southern Nuclear applied for a combined construction and operating license (COL), positioning the company to receive the first such license from the U.S. Nuclear Regulatory Commission in 2012. Also in 2008, Southern became the first U.S. company to sign an engineering, procurement, and construction contract for a Generation III+ reactor. Southern chose Westinghouse’s AP1000 pressurized water reactor, which was certified by the NRC in December 2011.
Fast forward a dozen years—which saw dozens of setbacks and hundreds of successes—and Southern Nuclear and its stakeholders celebrated the completion of Vogtle Units 3 and 4: the first new commercial nuclear power construction project completed in the U.S. in more than 30 years.
A concept image of NASA’s Fission Surface Power Project. (Image: NASA)
Westinghouse Electric Company announced last week that NASA and the Department of Energy have awarded the company a contract to continue developing a lunar microreactor concept for the Fission Surface Power (FSP) project.
Westinghouse’s eVinci microreactor. (Photo: Westinghouse)
Westinghouse Electric Company’s eVinci Advanced Logic System (ALS) Version 2 (v2) instrument and control (I&C) platform has received approval from the U.S. Nuclear Regulatory Commission through a final safety evaluation report on two topical reports.
The eVinci is now the first and only microreactor with an I&C system approved by the NRC, which opens a path to autonomous operation. The approvals also allow the ALS v2 platform to be used by any reactor currently in the U.S. fleet.
A rendering of a data center powered by Radiant's Kaleidos microreactors (shown in the foreground). (Image: Ryan Seper)
Radiant Industries has announced a $100 million Series C funding round to be used primarily to complete its Kaleidos Development Unit (KDU) microreactor for testing in Idaho National Laboratory's Demonstration of Microreactor Experiments (DOME) facility within two years.
The DUF6 facility at the Paducah Site in Kentucky. (Photo: DOE)
The Department of Energy’s Office of Environmental Management has awarded a $2.3 billion operations and site mission support services contract for the Portsmouth Paducah Project Office (PPPO) to Mission Conversion Services Alliance (MCSA), a limited liability company made up of Atkins Nuclear Secured, Westinghouse Government Services, and Jacobs Technology, with Swift & Staley and Akima Centerra Integrated Services as teaming subcontractors.
Framatome’s GAIA Protect EATF assembly. (Photo: Framatome)
Framatome’s enhanced accident tolerant fuel assemblies recently completed a third 18-month fuel cycle at Southern Nuclear’s Vogtle-2 plant—the first of this type of fuel to reach this milestone in the U.S., the company said.
Heat pipes transfer heat out of the eVinci microreactor’s core and allow for air cooling without using water or pressurized gas. (Photo: DOE)
Westinghouse Electric Company has completed the front-end engineering and experiment design (FEEED) for a prototype microreactor at Idaho National Laboratory, the Department of Energy recently announced. The one-fifth scale version of eVinci, Westinghouse’s 5-MWe sodium-cooled heat pipe design, is one of three reactors that could be tested at the National Reactor Innovation Center’s (NRIC) DOME test bed “as early as 2026,” the DOE said.
Concept art of a Westinghouse AP300 SMR. (Image: Westinghouse)
The United Kingdom’s Department of Energy Security and Net Zero has signed off on Westinghouse’s AP300 small modular reactor earlier this month.
Westinghouse ADOPT fuel pellets. (Photo: Westinghouse)
Westinghouse Electric Company announced Aug. 8 that it has completed the first pressing of ADOPT nuclear fuel pellets at the company’s Springfields Fuel Manufacturing Facility in the United Kingdom. The pellets, which can contain up to 8 percent uranium-235 by weight, are destined for irradiation testing in Southern Nuclear’s Vogtle-2 pressurized water reactor.
Eielson Air Force Base is shown in this screen grab from a video hosted on the base’s website. (Image: DOD)
Eielson Air Force Base in central Alaska has been the preferred location to demonstrate the benefits of microreactors to the U.S. Air Force—and by extension the Defense Department—since 2018. Now, a protracted solicitation process is nearing an end, and the Air Force and the Defense Logistics Agency Energy (DLA Energy) expect to announce a final procurement decision by the end of the summer—or about one year after Oklo Inc. announced that it had been tentatively selected to supply a microreactor under a 30-year power purchase agreement.
July 17, 2024, 11:18AMUpdated July 17, 2024, 8:24PMNuclear News Unit 3 at the Vogtle nuclear power plant. (Photo: Georgia Power)
One of the new Vogtle units in Georgia was shut down unexpectedly on Monday last week for a valve issue that has since been investigated and repaired. According to multiple local news outlets, Georgia Power reported on July 17 that Unit 3 was back in service.
Southern Company spokesperson Jacob Hawkins confirmed that Vogtle-3 went off line at 9:25 p.m. local time on July 8 “due to lowering water levels in the steam generators caused by a valve issue on one of the three main feedwater pumps.”
A cut-away view of Westinghouse’s AP300 reactor. (Image: Westinghouse)
Power generation from nuclear fission as a clean and stable source of electricity has secured the interest of policymakers and industry leaders around the globe. Last fall, the United States spearheaded a pledge at COP28 to get countries to agree to triple nuclear capacity worldwide, and recently the members of the Group of 7 (G7) nations that currently use nuclear power have reaffirmed their pledges to invest in that power source to cut carbon emissions.
As of this writing, U.S. policymakers are trying to make good on that promise by passing legislation to support nuclear power, funding the domestic fuel supply chain, and working to pass the ADVANCE Act. On top of the support from Washington, D.C., power-hungry industries like data centers and chemical engineering are looking to secure stable, carbon-free power directly from power plants.
Vogtle's Unit 4 achieves a milestone. (Photo: Georgia Power)
Unit 4 at Georgia Power’s Plant Vogtle has entered commercial operation, the company announced today. The new unit can produce enough electricity to power an estimated 500,000 homes and businesses, according to the company.