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Muehleberg nuclear power plant 1

Retired Switzerland
Gross capacity
390MW

Muehleberg nuclear power plant 1 is a boiling water reactor unit at Muehleberg nuclear power plant in Switzerland rated at 390 MW gross. It is retired. Commercial operation began 6 Nov 1972.

Specification
Reactor type Boiling water reactor (BWR)
ModelBWR-4
Size classLarge
CoolantLight water
ModeratorLight water
Gross capacity390MW
Net capacity (reference)373MW
Net capacity (design)306MW
Thermal output1,097MWt
Typical enrichment3–5% U-235
Ownership & location
SiteMuehleberg nuclear power plant
Unit1
CountrySwitzerland
OwnerBKW Energie AG100%
OperatorBKW Energie
Coordinates 46.9689, 7.2684
Fuel chain for this unit
Fuel form
Uranium dioxide pellets in zirconium-alloy cladding
Enrichment
3–5% U-235
Who makes this assembly
Upstream

Enriched fuel means this unit sits downstream of five conversion plants and four enrichment operators holding 88% of world capacity between the top three.

RosatomUrencoCNNCOrano
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Fabricator capability is recorded against reactor type and model line, not against named units — utilities do not publish fuel contracts.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 Mar 1967Construction start
  2. 8 Mar 1971First criticality
  3. 1 Jul 1971Grid connection
  4. 6 Nov 1972Commercial operation
  5. 20 Dec 2019Permanent shutdown

Other units at Muehleberg nuclear power plant

UnitStatusGross MW
Muehleberg nuclear power plant 2 Cancelled 1,600

Other BWR-4 units

8 units worldwide share this model designation.

UnitCountryStatusGross MW
Fukushima Daiichi nuclear power plant 2 Japan Retired 784
Fukushima Daiichi nuclear power plant 3 Japan Retired 784
Fukushima Daiichi nuclear power plant 4 Japan Retired 784
Fukushima Daiichi nuclear power plant 5 Japan Retired 784
Hamaoka nuclear power plant 1 Japan Retired 540
Hamaoka nuclear power plant 2 Japan Retired 840
Onagawa nuclear power plant 1 Japan Retired 524

Sources