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Monticello — Nuclear Reactor Data & Live Status

Live reactor status, daily power data, outage history & performance charts, scram history, capacity factor & statistics, community ratings, technical specifications, NRC licensing data, photos, nearby jobs, satellite map, contact information, and per diem rates for Monticello.

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Current reactor power level from the most recent NRC daily report.
30%
Power
POWER ASCENSION
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Days of continuous operation since the last outage ended. Ranked against all operating units.
4
Current Run
days
#81 of 95
Bottom Quartile
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Longest recorded period of continuous operation between outages.
707
Record Run
days
#37 of 95
Mid Quartile
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Breaker-to-Breaker: times this unit ran from one refueling outage to the next with zero forced outages or scrams in between. Ranked among active units.
5
B2B Runs
#47 of 95
Mid Quartile
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Lifetime capacity factor: average power level across all recorded days (100% = always at full power). Ranked against all NRC-tracked units.
87.8%
Capacity Factor
#77 of 95
Bottom Quartile
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Community rating score (Bayesian-adjusted). Based on 31 votes. Ranked against all rated facilities.
53.6
Rating
31 votes
#43 of 97
Mid Quartile
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Total NRC-reported scram events (emergency reactor shutdowns). Ranked fleet-wide — fewer scrams = better rank.
8
Scrams
#58 of 94
Mid Quartile
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Years since commercial operation began. License remaining: 24.4 years.
54.8
Operating Age
years
24.4 yrs remaining

Capacity Factor (365-Day)

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30%
Current
72.1%
365-Day Avg
#92
of 94 plants
Min: 0% Max: 100% 108 days <80%

Outage Duration Trend

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Scheduled refueling outage durations over time. Green bars are below average, yellow near average, red above. Dashed line shows the plant's historical average. Shorter outages mean better execution.

Power History (12-Month)

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Daily power output as a percentage of rated capacity over the past 365 days. Green segments indicate full power (90%+), yellow shows reduced output, and red indicates significant power reductions or shutdowns.

Outage Days by Year

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Total days spent in outage each year, split by scheduled refueling (blue) and forced/unplanned (red). Lower totals indicate better reliability and outage execution. Hover for details.

Facility Statistics

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Key performance and lifecycle metrics calculated from NRC operational data. Includes operating age, construction timeline, capacity factor, efficiency, generation totals, and reliability records.
Lifecycle & Tenure
Operating Age: 54.8 Yrs
Build Time: 4 Yrs
Lic. Remaining: 24.4 Yrs
Production & Power
Lifetime CF: 87.8%
Efficiency: 30.8%
Generated: 129.4 TWh
Reliability & Outages
Record Run: 707 Days
Refuelings: 14

Location & Contact

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Physical address, phone number, and website for this facility. Use the directions link to get driving directions via Google Maps.
Address:
2807 West Highway 75
Monticello, MN 55362, USA
Get Directions
Phone: (763) 295-5151

Per Diem Rates FY 2026

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Per diem covers lodging and meals & incidental expenses (M&IE) for government and contractor travel near this facility. Rates are from GSA for FY 2026.
$110
Lodging/Night
$68
M&IE/Day
$178
Total/Day
Standard Rate, MN

Ownership & Construction

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The utility or company that owns and operates the facility, the architect-engineer responsible for plant design, and the primary construction contractor. Click names to view all facilities by that entity on the map.
Owner/Operator: Xcel Energy
Architect Engineer: BECH
Constructor: BECH

Technical Specs

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Reactor design specifications including type (PWR/BWR), containment design, nuclear steam supply system manufacturer, thermal and electrical power ratings, and current operational status.
Reactor Type: BWR
Containment: BWR-MARK 1
NSS Supplier: GE 3
Thermal Power: 2004 MWt
Net Capacity: 617 MWe
Efficiency: 30.8%
Status: Operating

Licensing

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NRC licensing history including docket number, license type and number, construction permit date, operating license issuance, commercial operation date, license renewal, and expiration date.
Docket #: 05000263
License #: DPR-22
License Type: OL-FP
Const. Permit: 1967-06-19
Operating Lic: 1970-09-08
Commercial Op: 1971-06-30
License Renewed: 2006-11-08
License Exp: 2050-09-08