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685 MW Nuclear operating in Wright, MN
685 MW
Nameplate Capacity
1
Generators
unit
Nuclear
Technology
1971
Operating Since
Coordinates
45.3338, -93.8493
County
Wright, MN
Nearby Plants
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Owner data does not fully agree across sources.
EIA typically reports the operating utility, while GEM resolves to the financial owner or parent corporation. Both can be correct.
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Northern States Power Co - Minnesota | Northern States Power | Xcel Energy |
| Owner(s) | Northern States Power Co - Minnesota | Xcel Energy | — |
| Status | Operating | operating | — |
The Monticello Nuclear Generating Plant is a nuclear power plant located in Monticello, Minnesota, along the Mississippi River. The site, which began operating in 1971, has a single nuclear reactor of the General Electric BWR-3 design generating 671 MWe. The plant is owned by Xcel Energy and operated by Northern States Power, its regional subsidiary.
Read more on WikipediaThe Monticello Nuclear Facility is a 685 MW nuclear power plant located in Wright County, Minnesota. It began operating in 1971 and is owned and operated by Northern States Power Co - Minnesota, a subsidiary of Xcel Energy. The plant utilizes a single nuclear generator. Monticello is the second-largest of two nuclear plants in Minnesota, and ranks 53rd out of 55 nuclear plants nationally.
In the most recent year of record, the plant generated 4,655,912 MWh of electricity, achieving a capacity factor of 77.7%. The plant operates within the Midcontinent Independent Transmission System Operator (MISO) balancing authority and is located in the MRO NERC region. Financial data indicates an installed cost of $2400 per kW, according to FERC data.
Generated from EIA, GEM, and public data sources
ISO/RTO
MISO
Market
ISO/RTO Member
NERC Region
MRO — Midwest Reliability Organization
Balancing Authority
Midcontinent Independent Transmission System Operator, Inc.. (MISO)
Grid Voltage
345.0 kV
Regulatory Status
RE — Regulated
Entity Type
Investor-Owned Utility
Sector
Electric Utility
Monthly net generation as reported to EIA-923 — useful for historical context. Confidence varies sharply by fuel type; the band above and the “About this data” button explain the caveats specific to this plant and how InfraSure’s in-house model handles them.
467.3K MWh
Latest Month
4.7M MWh
Annual Generation
77.7%
Capacity Factor
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Nuclear · Northern States Power Company (Minnesota) · Data from 2015–2024
$2,562/kW
Installed Cost
$72/kW
Annual CapEx
$31.4/MWh
Operating Cost
Annual Capital & Operating Expenses
Cumulative Installed Cost
Per-Unit Cost Trends
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Market Position
ISO/RTO Market
MISO
LMP Node
NSP MNTCELO MNTCEL_1_UNIT
Pricing Hub
MINN.HUB
Node Source
EIA-860 direct report
No wholesale contracts disclosed in FERC EQR for this plant.
FERC EQR captures bilateral wholesale energy + capacity contracts ≥$1M/yr filed quarterly by jurisdictional sellers — covers renewable PPAs, thermal energy sales agreements, capacity contracts, and tolling agreements alike. Many plants don't appear: regulated-utility output flows to ratepayers via cost-of-service rather than bilateral contracts; small projects fall below the filing threshold; tax-equity-financed renewables route offtake to investors not utilities; merchant plants sell into ISO clearing markets without bilateral contracts. News-extracted buyer facts (below) may surface contracts disclosed only through announcements.
Last updated 2026-04-09
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Mineral oil leaked from Monticello Nuclear Plant into the Mississippi River; state agencies launched investigation and Xcel Energy commenced cleanup and monitoring.
sourceGoogle and Xcel Energy signed agreement for 300 MW/30 GWh iron-air battery deployment (Form Energy) to bolster Xcel's Upper Midwest grid.
source