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Rancho Seco nuclear power plant 1

Retired United States
Gross capacity
917MW

Rancho Seco nuclear power plant 1 is a pressurised water reactor unit at Rancho Seco nuclear power plant in United States rated at 917 MW gross. It is retired. Commercial operation began 17 Apr 1975.

Specification
Reactor type Pressurised water reactor (PWR)
Modelnot disclosed
Size classLarge
CoolantLight water
ModeratorLight water
Gross capacity917MW
Net capacity (reference)873MW
Net capacity (design)918MW
Thermal output2,772MWt
Typical enrichment3–5% U-235
Ownership & location
SiteRancho Seco nuclear power plant
Unit1
CountryUnited States
OwnerSacramento Municipal Utility District100%
OperatorSacramento Municipal Utility District
Coordinates 38.3445, -121.1206
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Fabricator capability is recorded against reactor type and model line, not against named units — utilities do not publish fuel contracts.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 Apr 1969Construction start
  2. 16 Sep 1974First criticality
  3. 13 Oct 1974Grid connection
  4. 17 Apr 1975Commercial operation
  5. 7 Jun 1989Permanent shutdown

Sources