NukeGryd

Monticello

MISO MN ·Xcel Energy ·617 MW ·BWR
100.0%
At full power
as of Sep 15, 2026

Right Now

Updated every morning from the NRC Daily Power Reactor Status Report.
Power level
100.0%
At full power
MW off line
0
of 617 MW installed
Typical coastdown
10 days
4 observed
Operational Excellence
███
Tells you whether this unit's published dates hold · Individual

Operational Excellence

Individual

One 0-100 score for how well this unit actually runs, computed from 27 years of daily reactor records: capacity factor, forced-outage days, breaker-to-breaker streak, fuel utilization, refuel duration, startup speed and scram rate. Sub-scores for reliability, efficiency and discipline, and its rank against units of the same reactor type and containment, and against units on a comparable fuel cycle.

Operating Timeline

Individual

Every outage this unit has taken, year by year, color-coded refuel against forced, with each refueling outage carrying its own RFO designator.

See the whole operating record Individual · $165/mo

Twelve years of this unit's outages on one timeline, so a published date can be read against what actually happened.

  • Refuel vs forced vs scram, color-coded
  • RFO designators on every refueling outage
  • Duration and coastdown on hover

Outage Record

Every outage, with what kind it was Individual · $165/mo

Refueling outages separated from forced ones, the distinction that decides whether a date is worth believing.

  • Start, end and duration
  • Refuel / forced / scram classification
  • RFO designator and cycle number
  • Coastdown and startup days

If It Trips

Pro

Nobody schedules a scram. When one happens the only question on a desk is how long the megawatts are gone, and that is a number no incumbent publishes. This is our projection for Monticello, scored against this unit's own trip history.

Days down if it trips
███
Sizes the supply gap the moment a unit drops · Pro
How good that call is
███
Scored on this unit's own trips, not the fleet average · Pro
Trips scored
███
Megawatts at stake
617 MW
installed capacity
Know the supply gap before the market does Pro · $499/mo

A trip is the one supply event nobody sees coming. The projection above says how long it lasts, and we publish how close that call has landed on this unit's own history.

  • Days down per unit if it trips
  • Scored against each unit's own trips
  • Projected outage overrun
  • MW-days the market has not priced

Breaker-to-Breaker Streak

Individual

How long this unit has run continuously since its last refueling outage without an unplanned shutdown, the industry's own badge of a well-run reactor, plus its completed streak history, whether it is a B2B champion, and how many days it has gone without a trip.

Reactor Trips

Individual

Every reactor trip the NRC has recorded for this unit, each with its event number and the licensee's own description.

Read the trip history Individual · $165/mo

Every scram the NRC has recorded for this unit, with the event notification behind it.

Plant Record

NRC and EIA filings
Commercial operation
Jun 1971
55 years in service
License expires
Sep 2050
24 years left
License renewed
2024
already extended once
Reactor supplier
GE 3
BWR-MARK 1
Thermal rating
2,004 MWt
licensed thermal power
NRC docket
05000263
license DPR-22
Architect engineer
BECH
designed the plant
Constructor
BECH
built the plant

Capacity over time

Net summer capability as filed with EIA. This unit is +45 MW (+7.9%) against its earliest record, across 3 steps large enough to be a real uprate. Smaller moves are EIA restating the same machine, not megawatts being added.

FromToNet summer MWChangeWhat it was
Jan 2016 current 617.0 +10.0 Uprate 1.7%
Jan 2015 Dec 2015 607.0 +53.0 Uprate 9.6%
Jan 2014 Dec 2014 554.0 -79.0 Derate -12.5%
Dec 2013 Dec 2013 633.0 +79.0 Uprate 14.3%
Jan 2010 Nov 2013 554.0 -18.0 Restatement
Jun 1971 Dec 2009 572.0 First record
License and docket data are public NRC filings; capacity history is EIA-860M. Every line here is verifiable against the source, which is the point: nothing on this panel is our opinion. See the whole fleet on the fleet lifecycle board.