Vogtle 3

Online · 100% power

Southern Nuclear·Waynesboro, GA·AP1000·1,117 MWe

Outage History Daily Power Log Get alerts

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.
Nov2025DecJan2026FebMarAprMayJunJulAugSepOctNovOnline: Oct 22, 2025 to Apr 18, 2026Refueling Outage (3R02): Apr 19, 2026 to May 16, 20263R02Power Ascension: May 17, 2026 to May 22, 2026Online: May 23, 2026Power Ascension: May 24, 2026Online: May 25, 2026 to Jun 30, 2026Reduced Power: Jul 1, 2026Online: Jul 2, 2026 to Sep 15, 2026Reduced Power: Sep 16, 2026 to Sep 17, 2026Online: Sep 18, 2026 to Oct 22, 2026Today
OnlineReduced PowerPower AscensionRefueling Outage
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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.
   
Excellence
Rank locked · 93 units
Subscribers
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Days of continuous operation since the last outage ended. Clean run (no forced outages since last refueling).
159
Current Run
days ✔
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Longest recorded period of continuous operation between outages (2025-05-30 to 2026-04-19).
324
Record Run
days
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Breaker-to-Breaker runs — continuous operation exceeding the cycle-adjusted threshold set for this unit with no trips to 0% power.
0
B2B Runs
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Lifetime capacity factor: average power level across all recorded days (100% = always at full power).
74.8%
Capacity Factor
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Net electricity actually generated over the most recent 12 months reported by the U.S. EIA (Form EIA-923), summed across every unit at this plant. Authoritative actuals, not an estimate.
37.03 TWh
Net Generation
EIA-923 · 12 mo to 2026-07 · plant total
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Total number of scheduled refueling outages detected in the historical data.
2
Outages
since 2022
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Average time from first power generation (>0%) to sustained full power (≥95% for 2+ days) across the last 2 scheduled outages. Click to compare against the fleet on the Operator Efficiency Leaderboard.
6
Avg Startup
days (last 2)
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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.
97.9%
Fuel Utilization
3yr avg

Reactor Status

Current Reactor Status Oct 22, 2026

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Current power output from NRC daily reactor status reports, updated Monday through Friday, except federal holidays. The gauge shows power level as a percentage of rated capacity. The sparkline shows the last 14 days of power history. Click to view the full unit dashboard.
Vogtle 3 is Online at 100% of rated power as of Oct 22, 2026. Over the last 14 reported days it has run between 93% and 100% power.
Vogtle 3 is Online Get alerts
100
PERCENT
0 200 400 600 800 1000 1,117 RATED CAPACITY (1,117 MWe) 1,117 MWe
Current:
1,117 MWe
Powering 893,600 homes
Rated Capacity:
1,117 MWe
893,600 homes
14-Day Power History
93
Oct 9 Oct 22

Capacity Factor (365-Day)

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100%
Current
91.1%
365-Day Avg
#62
of 94 plants
Min: 0% Max: 100% 36 days <80%

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.
Across its recorded history, Vogtle 3 has spent 72 days in scheduled refueling outages and 244 days in forced or unplanned outages. Taller bars mark the years with the most downtime.
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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

Vogtle 3 has 15 outages plotted here, averaging 21 days each. The most recent, in Apr 2026, was a scheduled refueling outage lasting 28 days.
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Scheduled refueling outage durations over time. Green bars are at or below this unit's average, amber up to 30% above it, red beyond that. The dashed line is the average. Shorter outages mean better execution.

Refueling Duration Trend

Vogtle 3 has completed 2 scheduled refueling outages on record, averaging 36 days each. The most recent, in Apr 2026, ran 28 days.
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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

After a refueling outage, Vogtle 3 takes about 6 days to climb from first power back to full power. That average is drawn from 2 startups on record, and the most recent took 8 days.
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Daily reactor power over the 120 days before each scheduled refueling outage, one line per refueling, lined up on the day the outage began. A coastdown is the slow decline as the fuel runs out near the end of a cycle. The highlighted line is the most recent refueling and fainter lines are older. Counts and medians cover coastdowns of a week or longer. A shutdown straight from full power, with no decline ahead of it, is what a forced outage looks like.

Coastdown Before Refueling

0 of 2 refuelings
Vogtle 3 has not coasted down for a week or longer before any of its 2 refuelings on record. It holds power until the shutdown itself.
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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 May 18, 2026

69.6% remaining 2.9 FPD margin
Vogtle 3 has an estimated 69.6% of its fuel left. Across its last 1 cycle, it has refueled with an average of 2.1% remaining.
Avg refuel: 2.1% Avg refuel (3yr): 2.1% Deepest burn: 2.1% (2024-11 → 2026-04) Most margin: 2.1% (2024-11 → 2026-04)
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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

Over its operating life, Vogtle 3 has run at about 74.8% of its rated capacity. Across the last 12 reported months it averaged 91.1%. On the chart, green stretches near the top are full-power running, amber marks reduced power (50 to 89%), and red drops toward zero are outages.
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Estimated reactivity remaining in Vogtle 3's current fuel cycle, shown as a stylized fuel rod that drains as the cycle progresses. The cycle starts when the unit returns to power after its most recent refueling outage, and the gauge represents the fraction of that cycle's typical effective full-power days (EFPD) still available. Days at less than 100% power burn fuel proportionally — so a unit with significant downtime (high burn deficit) drains slower and ends with MORE reactivity left, giving operators margin to coast down (extend the cycle by reducing power) instead of refueling on the calendar. The dashed red line near the bottom marks the rough industry coastdown threshold (~15% remaining). Cycle target is the unit's median recent cycle length. Source: NRC daily reactor status reports cross-referenced against scheduled refuel outage history.

Fuel Burn Down Cycle since May 18, 2026

Vogtle 3 is 157 days into its current fuel cycle with an estimated 69.6% of its fuel left. Its typical cycle runs about 507 days.
Fresh — 100%
25% 50% 75% COASTDOWN ~15% DAY 0 DAY 507
Refuel — 0%
69.6% remaining
Fresh fuel
Cycle progress
157 / 507 days
EFPD remaining
353 days
Effective burn
154 EFPD
Burn deficit
2.9 FPD
Vogtle 3 is early in its fuel cycle with 353 EFPD of reactivity remaining. Refuel is not expected for many months.

Outage History & Daily Power Log

This table logs every recorded outage for Vogtle 3, 15 in all since 2022. Of those, 2 were scheduled refueling outages and 13 were unplanned or forced. The typical outage lasted about 21 days. Where the Scheduled column shows (Model), the date is a NukeWorker projection because the utility had not published one.
Type ⇅ Actual Start ⇅ Actual End ⇅ Duration ⇅ Days Online ⇅ Scheduled Delta
Scheduled 3R02
2026-04-19 2026-05-16 28 324d 2026-04-19 0d
Unscheduled
2025-05-23 2025-05-30 8 179d - -
Scheduled 3R01
2024-10-13 2024-11-25 44 17d 2024-10-13 0d
Scram # 57326 Auto
2024-09-17 2024-09-26 10 63d - -
Scram # 57215 Auto
2024-07-09 2024-07-16 8 159d - -
Unscheduled
2024-01-28 2024-02-01 5 187d - -
Scram # 56632 Auto
2023-07-22 2023-07-25 4 4d - -
Unscheduled
2023-07-16 2023-07-18 3 2d - -
Scram # 56614 Auto
2023-07-10 2023-07-14 5 4d - -
Unscheduled
2023-06-11 2023-07-06 26 4d - -
Unscheduled
2023-06-07 2023-06-07 1 22d - -
Scram # 56497 Manual
2023-05-02 2023-05-16 15 17d - -
Scram # 56460 Auto
2023-04-09 2023-04-15 7 20d - -
Scram # 56414 Auto
2023-03-16 2023-03-20 5 8d - -
Unscheduled
2022-10-13 2023-03-08 147 - - -
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