Point Beach 2 - Status & History

Comprehensive reactor performance metrics, cycle analysis, and historical outage data.

Plant Info Outage History Daily Power Log
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Composite Operational Excellence Score (0-100) — average percentile rank across 7 dimensions in three sub-scores: Reliability (capacity factor, forced outage days, B2B avg streak), Efficiency (fuel utilization, refuel duration), and Discipline (startup duration, scram count). 5-year window. Higher = more operationally excellent. Click to see the full breakdown.
71
Excellence
#20 of 94 ↓3
Top Quartile
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Days of continuous operation since the last outage ended. Clean run (no forced outages since last refueling).
34
Current Run
days ✔
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Longest recorded period of continuous operation between outages (2023-04-03 to 2024-10-12).
558
Record Run
days
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Breaker-to-Breaker runs — continuous operation exceeding the cycle-adjusted threshold (453 days for this 18-month cycle unit) with no trips to 0% power.
11
B2B Runs
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Lifetime capacity factor: average power level across all recorded days (100% = always at full power).
90.6%
Capacity Factor
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Total number of scheduled refueling outages detected in the historical data.
18
Outages
since 1999
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Average time from first power generation (>0%) to sustained full power (≥95% for 2+ days) across the last 3 scheduled outages. Click to compare against the fleet on the Operator Efficiency Leaderboard.
4.7
Avg Startup
days (last 3)
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Average fuel utilization — percent of the designed fuel cycle that this unit consumes before refueling, derived from the historical burn-down trajectory. Higher = more efficient operator (refuels with less margin remaining; closer to coastdown). Computed as 100% minus the unit's average refuel-point fuel %, using the last 3 years where available, otherwise lifetime average. Click to compare against the fleet on the Operator Efficiency Leaderboard.
99.9%
Fuel Utilization
3yr avg
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NukeWorker's Operational Excellence Score is a composite 0–100 ranking of every active US nuclear unit across 7 publicly observable performance metrics, grouped into three sub-scores:
• Reliability — capacity factor, forced outage days, B2B avg streak
• Efficiency — fuel utilization, refuel duration
• Discipline — startup duration, scram count
Each unit's metric is converted to a percentile across the active fleet. Sub-score = average of its components; composite = average of the three sub-scores. Use the time-window toggle below to switch between 3yr / 5yr / lifetime.
Time window — change how far back we look
NukeWorker's
Operational
Excellence Score
71/100
Top Quartile · #20/94
5-year window

Point Beach 2 ranks #20 of 94 active US units on NukeWorker's Operational Excellence Score over the 5-year window. Strongest area: Fuel Utilization (92th percentile). Weakest: Startup Duration (37th percentile).

Reliability
63
Capacity factor + Forced outages + B2B streaks
Efficiency
85
Fuel utilization + Refuel duration
Discipline
64
Startup duration + Scram count
Cohort Rankings apples-to-apples comparison within each peer group
Reactor type: #11 of 61 PWR
Containment: #9 of 48 Dry Ambient (PWR)
Cycle length: #8 of 54 18-month cycle
Fleet rank above (20 of 94) compares all active US units; cohort ranks compare only against units sharing this property.
Per-dimension breakdown (7 metrics)
Capacity Factor 57th
92.3% (higher better, Reliability)
Forced Outage Days/yr 91th
0.8d (lower better, Reliability)
B2B Avg Streak 41th
510d (higher better, Reliability)
Fuel Utilization 92th
99.1% (higher better, Efficiency)
Refuel Duration 79th
24d (lower better, Efficiency)
Startup Duration 37th
5.1d (lower better, Discipline)
Scrams (5-year) 90th
0.0/yr (lower better, Discipline)

Each dimension's percentile is computed across the active US fleet (94 units with sufficient history). Sub-score = average of its component percentiles. Composite = average of the three sub-scores. 5-year window. View full leaderboard →

Methodology

NukeWorker's Operational Excellence Score is a composite ranking that combines 7 publicly observable performance metrics into a single 0-100 number per US nuclear unit.

How it's computed: Each unit's raw value is converted to a percentile (0-100) within the 94 active US units that have at least 2 completed refueling cycles. The 7 percentiles are averaged into 3 sub-scores (Reliability, Efficiency, Discipline), and those are averaged into the final composite.

Active window — 5-year:

  • Reliability — Capacity factor (5yr), forced outage days/yr (5yr), B2B avg streak (lifetime)
  • Efficiency — in-cycle fuel utilization (3yr), median refuel duration (5yr)
  • Discipline — robust mean startup duration, scrams/yr (5yr, annualised)

Cohort rankings: alongside the fleet rank, each unit gets ranked within its reactor type (PWR/BWR), containment design (Ice Condenser, Mark I, etc.), and cycle length (12/18/24-month). Useful for apples-to-apples comparisons.

What's excluded: subjective community ratings, confidential INPO ratings, financial metrics. We only use publicly available NRC + cycle data.

Why three windows? 5yr (default) is the industry standard. 3yr captures recent operational changes and post-pandemic recovery. Lifetime gives newer units a fair comparison and reveals long-term consistency.

Edge cases: units with fewer than 2 cycles (e.g., Vogtle 4) show "Provisional". Decommissioned units excluded.

Refresh cadence: recomputed daily. Each window cached separately.

A data-derived proxy for operational performance; not affiliated with INPO. INPO ratings are confidential and qualitative — ours is public and quantitative.

5-yr trend: 2021: 80/100 (#10/93)2022: 83/100 (#8/92)2023: 83/100 (#7/92)2024: 81/100 (#10/93)2025: 81/100 (#11/94)2026: 77/100 (#14/94) ↓ -4.1 pts vs 2025
Compare Point Beach 2 head-to-head with up to 3 other units. Compare now
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Duration of each outage in days, shown chronologically. Green bars are scheduled refueling outages, red bars are forced/unscheduled. The orange dashed line marks the average duration. Extended outages (>180 days) and D&D periods are excluded.

Outage Duration Trend

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Days between consecutive scheduled refueling outage starts, showing operating cycle regularity. The purple dashed line marks the average cycle length. Most U.S. reactors operate on 18-month (547 day) or 24-month (730 day) cycles.

Cycle Length History

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Time in days from first power generation (>0%) to sustained full power (≥95% for 2+ consecutive days) after each scheduled refueling outage. The dashed line marks the average. Includes startup testing holds and power dips.

Startup Duration Trend

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Estimated fuel remaining in the current cycle, expressed as a percentage of the unit's typical cycle. Starts at 100% when the unit returns to power post-refuel and drops as full-power-days are burned. Days at reduced power burn fuel proportionally — so a unit with significant downtime (high burn deficit) drops slower and ends up with MORE fuel left than its calendar position would suggest. Coastdown threshold around 15%. Toggle to overlay past cycles on a normalized "days into cycle" axis to see how aggressively this unit historically burns down before refuel.

Fuel Burn Down Cycle since Apr 13, 2026

94.0% remaining 30 / 496 days 0.4 FPD margin
Avg refuel: 2.5% Avg refuel (3yr): 0.1% Deepest burn: 0.0% (2006-11 → 2008-04) Most margin: 12.7% (2009-12 → 2011-03)
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Monthly capacity factor with outage events overlaid as red bands. Green bars show average power level per month. Toggle to Daily view for raw daily data.

Power History

Type ⇅ Actual Start ⇅ Actual End ⇅ Duration ⇅ Days Online ⇅ Scheduled Delta
Scheduled
2026-03-14 2026-04-10 28 499d 2026-03-07 +7d
Scheduled
2024-10-12 2024-10-31 20 558d 2024-10-12 0d
Scheduled
2023-03-11 2023-04-03 24 494d 2023-03-11 0d
Scheduled
2021-10-09 2021-11-02 25 553d 2021-10-09 0d
Scheduled
2020-03-14 2020-04-04 22 506d 2020-03-14 0d
Scheduled
2018-10-06 2018-10-25 20 541d 2018-10-08 -2d
Scheduled
2017-03-18 2017-04-13 27 505d 2017-03-18 0d
Scheduled
2015-10-03 2015-10-30 28 404d 2015-10-03 0d
Unscheduled
2014-08-25 2014-08-25 1 131d - -
Scheduled
2014-03-17 2014-04-16 31 472d 2014-03-17 0d
Scheduled
2012-11-01 2012-11-30 30 122d 2012-11-01 0d
Scram # 48053
2012-06-28 2012-07-02 5 379d - -
Scheduled SGR/Major
2011-03-01 2011-06-15 107 70d 2011-03-01 0d
Unscheduled
2010-12-14 2010-12-21 8 157d - -
Unscheduled
2010-07-10 2010-07-10 1 20d - -
Unscheduled
2010-06-20 2010-06-20 1 197d - -
Scheduled
2009-10-15 2009-12-05 52 525d 2009-10-05 +10d
Scheduled
2008-04-06 2008-05-08 33 507d 2008-03-21 +16d
Scheduled
2006-10-16 2006-11-16 32 465d 2006-10-15 +1d
Scheduled SGR/Major
2005-04-02 2005-07-08 98 130d 2005-04-01 +1d
Unscheduled
2004-11-20 2004-11-23 4 186d - -
Unscheduled
2004-05-16 2004-05-18 3 181d - -
Scheduled
2003-10-04 2003-11-17 45 84d 2003-10-04 0d
Unscheduled
2003-07-11 2003-07-12 2 94d - -
Unscheduled
2003-04-06 2003-04-08 3 328d - -
Scheduled
2002-04-13 2002-05-13 31 47d 2002-04-13 0d
Unscheduled
2002-02-23 2002-02-25 3 239d - -
Unscheduled
2001-06-28 2001-06-29 2 140d - -
Unscheduled
2001-02-07 2001-02-08 2 48d - -
Unscheduled
2000-12-21 2000-12-21 1 6d - -
Scheduled SGR/Major
2000-10-14 2000-12-15 63 159d 2000-10-14 0d
Unscheduled
2000-05-05 2000-05-08 4 434d - -
Unscheduled
1999-01-01 1999-02-26 57 - - -
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