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Columbia nuclear power plant 1

Operating United States
Gross capacity
1,190MW

Columbia nuclear power plant 1 is a boiling water reactor unit at Columbia nuclear power plant in United States rated at 1,190 MW gross. It is operating. Commercial operation began 13 Dec 1984.

Specification
Reactor type Boiling water reactor (BWR)
ModelBWR-5 (Mark 2)
Size classLarge
CoolantLight water
ModeratorLight water
Gross capacity1,190MW
Net capacity (reference)1,131MW
Net capacity (design)1,100MW
Thermal output3,486MWt
Typical enrichment3–5% U-235
Ownership & location
SiteColumbia nuclear power plant
Unit1
CountryUnited States
OwnerEnergy Northwest100%
OperatorEnergy Northwest
Coordinates 46.4711, -119.3339
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Fabricator capability is recorded against reactor type and model line, not against named units — utilities do not publish fuel contracts.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 Aug 1972Construction start
  2. 19 Jan 1984First criticality
  3. 27 May 1984Grid connection
  4. 13 Dec 1984Commercial operation

Other units at Columbia nuclear power plant

UnitStatusGross MW
Columbia nuclear power plant EPU Pre-construction 162

Other BWR-5 (Mark 2) units

5 units worldwide share this model designation.

UnitCountryStatusGross MW
LaSalle nuclear power plant 1 United States Operating 1,207
LaSalle nuclear power plant 2 United States Operating 1,207
Nine Mile Point nuclear power plant 2 United States Operating 1,320
Columbia nuclear power plant EPU United States Pre-construction 162

Sources