Reactor Status Timeline
Online NRC data, Mon to Fri ? Actual daily reactor status from NRC reports (Mon to Fri) and the current state. What is coming -- the utility's published Scheduled outage and NukeWorker's model Projection -- is part of a subscription. Colored by status. How far ahead you can see depends on your plan.Fuel Burn Down Cycle since Apr 11, 2025
NukeWorker's Operational Excellence Score 5-yr composite · ranks 11 of 93 ↑9
Operational
Excellence Score
Point Beach 1 ranks #11 of 93 active US units on NukeWorker's Operational Excellence Score over the 5-year window. Strongest area: Forced Outage Days/yr (96th percentile). Weakest: B2B Avg Streak (23th percentile).
Per-dimension breakdown (7 metrics)
Each dimension's percentile is computed across the active US fleet (93 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 93 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.
Capacity Factor (365-Day)
Breaker-to-Breaker Runs 8 runs
| 2025-04-10 | Active | 487 days | U1R42 → present |
| 2023-11-01 | 2025-03-22 | 507 days | U1R41 → U1R42 |
| 2022-04-22 | 2023-10-07 | 533 days | U1R40 → U1R41 |
| 2019-04-19 | 2020-10-03 | 533 days | U1R38 → U1R39 |
| 2016-04-05 | 2017-10-07 | 550 days | U1R36 → U1R37 |
| 2008-11-13 | 2010-03-01 | 473 days | U1R31 → U1R32 |
| 2005-12-16 | 2007-04-01 | 471 days | U1R29 → U1R30 |
| 2004-06-08 | 2005-09-24 | 473 days | U1R28 → U1R29 |
Scram History 5 events since 2011
Outage Duration Trend
?Power History (12-Month)
?Outage Days by Year
?Facility Statistics
NukeWorker Member Ratings 68 votes
Facility Map
44.2806, -87.5384
