Skip to content
nuclear•chain

Monticello nuclear power plant

Operating United States
Gross capacity
691MW

Monticello nuclear power plant is a boiling water reactor unit at Monticello nuclear power plant in United States rated at 691 MW gross. It is operating. Commercial operation began 30 Jun 1971.

Specification
Reactor type Boiling water reactor (BWR)
ModelBWR-3 (Mark 1)
Size classLarge
CoolantLight water
ModeratorLight water
Gross capacity691MW
Net capacity (reference)628MW
Net capacity (design)545MW
Thermal output2,004MWt
Typical enrichment3–5% U-235
Ownership & location
SiteMonticello nuclear power plant
Unitnot stated
CountryUnited States
OwnerXcel Energy Inc100%
OperatorNorthern States Power
Coordinates 45.3338, -93.8493
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Fabricator capability is recorded against reactor type and model line, not against named units — utilities do not publish fuel contracts.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. 19 Jun 1967Construction start
  2. 10 Dec 1970First criticality
  3. 5 Mar 1971Grid connection
  4. 30 Jun 1971Commercial operation

Other BWR-3 (Mark 1) units

6 units worldwide share this model designation.

UnitCountryStatusGross MW
Dresden nuclear power plant 2 United States Operating 950
Dresden nuclear power plant 3 United States Operating 935
Quad Cities nuclear power plant 1 United States Operating 940
Quad Cities nuclear power plant 2 United States Operating 940
Pilgrim nuclear power plant 1 United States Retired 711

Sources