Krško Nuclear Power Plant

Krško Nuclear Power Plant
Official name
  • Nuklearna elektrarna Krško
CountrySlovenia
Coordinates45°56′18″N 15°30′56″E / 45.93833°N 15.51556°E / 45.93833; 15.51556
StatusOperational
Construction began1975
Commission dateJanuary 1, 1983
Construction cost
  • $649.2 million
Owners
OperatorNuklearna Elektrarna Krško
Employees
  • 659 (2023)
Nuclear power station
Reactor typePWR
Reactor supplier
Annual revenue
  • 239,991,197 € (2023)
Power generation
Units operational1 x 730 MW
Nameplate capacity696 MW
Capacity factor89.1%
Annual net output5,700 GW·h
External links
Websitewww.nek.si/en/
CommonsRelated media on Commons

The Krško Nuclear Power Plant (Slovene: Jedrska elektrarna Krško, JEK, or Nuklearna elektrarna Krško, NEK, [ˈkə́ɾʃkɔ]; Croatian: Nuklearna elektrana Krško) is located in Vrbina in the City Municipality of Krško, Slovenia. The plant was connected to the power grid on October 2, 1981, and went into commercial operation on January 15, 1983. It was built as a joint venture by Slovenia and Croatia which were both part of Yugoslavia at the time.

The plant is a 2-loop Westinghouse pressurized water reactor, with a rated thermal capacity of 1,994 thermal megawatts (MWt) and 696 megawatts-electric (MWe). It runs on enriched uranium (up to 5 weight-percent 235U), fuel mass 48.7 t, with 121 fuel elements, demineralized water as the moderator, and 36 bundles of 20 control rods each made of silver, indium and cadmium alloys to regulate power. Its sister power plant is Angra I in Brazil.

The operating company Nuklearna elektrarna Krško (NEK) is co-owned by the Slovenian state-owned company Gen Energija and the Croatian state-owned company Hrvatska elektroprivreda (HEP). The power plant provides more than one-quarter of Slovenia's and 15% of Croatia's power.