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Bohunice nuclear power plant A1

Retired Slovakia
Gross capacity
143MW

Bohunice nuclear power plant A1 is a pressurised heavy water reactor unit at Bohunice nuclear power plant in Slovakia rated at 143 MW gross. It is retired. Commercial operation began 25 Dec 1972.

Specification
Reactor type Pressurised heavy water reactor (PHWR)
ModelKS 150
Size classLarge
CoolantHeavy water
ModeratorHeavy water
Gross capacity143MW
Net capacity (reference)93MW
Net capacity (design)110MW
Thermal output560MWt
Typical enrichmentNatural uranium, 0.71% U-235
Ownership & location
SiteBohunice nuclear power plant
UnitA1
CountrySlovakia
OwnerJadrova A Vyradovacia Spolocnost (Nuclear And Decommissioning Company PLC)100%
OperatorJadrova A Vyradovacia Spolocnost (Nuclear And Decommissioning Company PLC)
Coordinates 48.4968, 17.6907
Fuel chain for this unit
Fuel form
Natural uranium dioxide bundles
Enrichment
Natural uranium, 0.71% U-235 no enrichment required
Who makes this assembly
Upstream

This unit runs on natural uranium, so its fuel chain has no enrichment step at all: mine → mill → conversion → fabrication. That is the shortest fuel chain of any commercial reactor type, and it makes the operator independent of the four organisations that control enrichment worldwide.

Conversion
CamecoCNNCConverDynOranoRosatom
Fabricator capability is recorded against reactor type and model line, not against named units — utilities do not publish fuel contracts. See the fuel chain.

Timeline

  1. 1 Aug 1958Construction start
  2. 24 Oct 1972First criticality
  3. 25 Dec 1972Grid connection
  4. 25 Dec 1972Commercial operation
  5. 22 Feb 1977Permanent shutdown

Other units at Bohunice nuclear power plant

UnitStatusGross MW
Bohunice nuclear power plant 1 Retired 440
Bohunice nuclear power plant 2 Retired 440
Bohunice nuclear power plant 3 Operating 500
Bohunice nuclear power plant 4 Operating 500
Bohunice nuclear power plant 5 Pre-construction 1,200

Sources