806 articles
Uranium-233
Uranium-233 is a fissile artificial isotope of uranium with a half-life of about 160,000 years, bred from natural thorium-232 by neutron capture and used as a nuclear reactor fuel.
Uranium-plutonium-zirconium metal fuel
Uranium-plutonium-zirconium metal fuel (U-Pu-Zr) is a ternary metallic alloy nuclear fuel, developed at Argonne National Laboratory as the driver fuel for the Integral Fast Reactor.
Uranium-zirconium alloy
Uranium-zirconium alloy, or U-Zr, is a metallic nuclear fuel, usually uranium with 10 weight percent zirconium, valued for high thermal conductivity and use in sodium-cooled fast reactors like EBR-II.
Uranium-zirconium hydride
Uranium-zirconium hydride (UZrH) is a nuclear fuel combining uranium metal and a zirconium hydride moderator, developed by General Atomics in 1957 for the TRIGA research reactors.
Urenco
Urenco is an international uranium enrichment supplier founded in 1970 under the Treaty of Almelo, owned by the UK, Dutch, and German governments' partners, with plants in four countries.
Urenco Almelo
Urenco Almelo is the Dutch uranium enrichment facility of the Urenco Group in Almelo, Netherlands, operating since 1973 and also enriching stable isotopes for medical uses.
Urenco USA
Urenco USA is a gas centrifuge uranium enrichment plant in Eunice, New Mexico, the only commercial-scale enricher in the United States and supplier of about one third of US enrichment needs.
US Civil Nuclear Credit Program
The US Civil Nuclear Credit Program is a Department of Energy program, created by 2021 infrastructure law, that pays at-risk nuclear reactors to stay open.
Vandellòs Nuclear Power Plant
The Vandellòs Nuclear Power Plant is a Spanish nuclear power station on the Mediterranean coast in Tarragona, comprising the retired Vandellòs I and the operating Vandellòs II.
Vermont Yankee
Vermont Yankee was a boiling water reactor nuclear power plant in Vernon, Vermont, that generated electricity from 1972 until its permanent shutdown on December 29, 2014.
Vermont Yankee Nuclear Power Plant
Vermont Yankee was a boiling water reactor nuclear power plant in Vernon, Vermont, that operated from 1972 to 2014 and is undergoing expedited decommissioning by NorthStar.
Very low-level waste
Very low-level waste (VLLW) is radioactive waste, mostly rubble, soil, concrete, and metal from nuclear decommissioning, that needs only landfill-type disposal, making up most waste volume but little radioactivity.
Very-high-temperature reactor
The very-high-temperature reactor (VHTR) is a Generation IV nuclear reactor design that is graphite-moderated and helium-cooled, delivering outlet temperatures of 700 to 950 °C for electricity and industrial heat.
Vienna Convention on Civil Liability for Nuclear Damage
The Vienna Convention on Civil Liability for Nuclear Damage is a 1963 treaty under the International Atomic Energy Agency establishing strict, exclusive operator liability for nuclear damage.
VIPAC fuel
VIPAC fuel, also called vibrocompacted or Vibropack fuel, is nuclear reactor fuel in which irregular ceramic particles are vibration-packed into cladding, developed most extensively in Russia.
Virgil C. Summer Nuclear Generating Station
The Virgil C. Summer Nuclear Generating Station is a nuclear power plant near Jenkinsville, South Carolina, operating since 1984, and the site of an abandoned AP1000 construction project.
Vogtle Electric Generating Plant
Vogtle Electric Generating Plant, known as Plant Vogtle, is a four-unit nuclear power station in Waynesboro, Georgia, the largest clean energy generator in the United States.
Void coefficient
The void coefficient of reactivity is the rate at which steam bubbles forming in a reactor's coolant change its reactivity, a key factor in reactor safety.
VVER (водо-водяной энергетический реактор)
VVER, also written WWER, is the Soviet and Russian family of pressurized water reactors in which light water serves as both coolant and moderator, first commissioned in 1964.
VVER-1000
VVER-1000 (ВВЭР-1000) is a Soviet and Russian pressurized water reactor rated at about 1000 MW electric, developed by OKB Gidropress and first operated at Novovoronezh Unit 5 in 1980.
VVER-1200
The VVER-1200 is a Generation III+ pressurized water reactor developed by Rosatom in Russia, producing about 1,200 MWe and serving as the basis of most of Rosatom's export program.
VVER-TOI (V-510)
VVER-TOI (ВВЭР-ТОИ; designation V-510) is a Russian Generation III+ pressurized water reactor plant design rated at 1,300 MWe, first built at the Kursk II plant.
WASH-1400
WASH-1400, formally the Reactor Safety Study and often called the Rasmussen Report, is a 1975 Nuclear Regulatory Commission report that founded probabilistic risk assessment in the nuclear industry.
Washington Public Power Supply System
The Washington Public Power Supply System (WPPSS) was a Washington utility consortium whose 1983 default of $2.25 billion in bonds was the largest in U.S. history.
Waste Treatment Plant (Hanford)
The Waste Treatment Plant is a Department of Energy facility at the Hanford Site in Washington state that converts radioactive tank waste into glass, built by Bechtel.
Waterford Nuclear Generating Station
Waterford Nuclear Generating Station, known as Waterford 3, is a nuclear power plant in Killona, Louisiana, west of New Orleans, operated by Entergy and generating about 1,152 MW since 1985.
Watts Bar Nuclear Plant
Watts Bar Nuclear Plant is a two-unit nuclear power station owned by the Tennessee Valley Authority near Spring City, Tennessee, with units starting up in 1996 and 2016.
Weapons-grade plutonium
Weapons-grade plutonium is plutonium metal with no more than 7 percent plutonium-240, made in dedicated reactors by short irradiation of uranium for nuclear weapon cores.
West Valley Demonstration Project
The West Valley Demonstration Project (WVDP) is a Department of Energy cleanup at the site of America's only commercial spent nuclear fuel reprocessing plant, in West Valley, New York.
Westinghouse 2-loop PWR
The Westinghouse 2-loop PWR is the smallest of Westinghouse's commercial pressurized water reactors, rated near 500 MWe, with US plants including Ginna, Point Beach, and Prairie Island.