Vogtle 4
Online · 100% powerSouthern Nuclear·Waynesboro, GA·AP1000·1,117 MWe
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This unit hasn't completed enough refueling cycles yet to be ranked. The Operational Excellence Score will appear after the unit's second scheduled refuel.
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Excellence
Provisional
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Current reactor power level from the most recent NRC daily report.
100%
Power
ONLINE
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Days of continuous operation since the last outage ended. Ranked against all operating units.
381
Current Run
days
#10 of 95
Top Quartile
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Longest recorded period of continuous operation between outages.
381
Record Run
days
#95 of 95
Bottom Quartile
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Breaker-to-Breaker runs — continuous operation exceeding the cycle-adjusted threshold (460 days for this 18-month cycle unit) with no trips to 0% power.
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B2B Runs
82% toward B2B (379/460d)
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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.
72.7%
Capacity Factor
#94 of 95
Bottom Quartile
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Net electricity actually generated over the most recent 12 months reported by the U.S. Energy Information Administration (Form EIA-923), summed across every unit at this plant. These are authoritative actuals, not an estimate.
37.03 TWh
Net Generation
EIA-923 · 12 mo to 2026-07 · plant total
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Total NRC-reported scram events (emergency reactor shutdowns). Ranked fleet-wide — fewer scrams = better rank.
1
Scrams
#1 of 94
Top Quartile
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Years since commercial operation began. License remaining: 36.8 years.
2.5
Operating Age
years
36.8 yrs remaining
Excellence Score, Records & Plant Facts
About This Site
Written by NukeWorker from public records: facts that do not change. Operator, status and capacity come from the live data elsewhere on this page. Sources: Wikipedia: Plant Vogtle.
Alvin W. Vogtle Electric Generating Plant is in Burke County, Georgia, near Waynesboro, on the Savannah River, which is its cooling source.
Read more
Units 1 and 2 are Westinghouse four-loop pressurized water reactors. Construction began on August 1, 1976, and commercial operation began on June 1, 1987, for Unit 1 and May 20, 1989, for Unit 2. A loss of vital power at both units in 1990 led to a site area emergency, later downgraded to an alert. Units 3 and 4 are Westinghouse AP1000 reactors, with construction beginning on March 12, 2013, and November 19, 2013. Westinghouse filed for bankruptcy in 2017, and Southern Nuclear took over construction management. Unit 3 entered commercial operation on July 31, 2023, and Unit 4 on April 29, 2024.
Facility Statistics
Key performance and lifecycle metrics calculated from NRC operational data. Includes operating age, construction timeline, capacity factor, efficiency, generation totals, and reliability records.
Vogtle 4 has operated for about 2.5 years and averaged a 72.7% lifetime capacity factor, generating roughly 22.5 TWh of electricity. Its longest unbroken run reached 381 days.
Lifecycle & Tenure
Operating Age: 2.5 Yrs
Build Time: N/A Yrs
Lic. Remaining: 36.8 Yrs
Production & Power
Lifetime CF: 72.7%
Efficiency: 32.9%
Generated: 22.5 TWh
Reliability & Outages
Record Run: 381 Days
Refuelings: 1
Avg Startup: 3 Days
Ownership & Construction
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.
Ownership, operation and management history
No change of owner, operator or management company on record. Our history starts in 1999.
SO
The Southern Company
NYSE
$90.39
▼ -0.32 (-0.35%)
Previous Close
90.71
Day's Range
90.27 – 91.01
52-Week Range
81.69 – 99.58
Volume
4,653,591
Delayed quote as of Oct 21, 2026 4:00 PM ET.
Source: Yahoo Finance.
Full quote on Yahoo Finance
Vogtle 4 needs more refueling history before it can be ranked on the Operational Excellence Score. Check back after the next scheduled refuel.
Scram History 1 events since 2011
Automatic and manual reactor scram (emergency shutdown) events reported to the NRC since 2011. Includes event dates, trip type, and average recovery time. Click the title to view the full fleet scram dashboard.
Vogtle 4 has recorded 1 reactor scram, or emergency shutdown, since 2011 (0 automatic, 1 manual). On average the unit was back to full power about 6 days after each trip.
Technical Specs
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:
AP1000
Containment:
PWR - Freestanding steel vessel with shield building
NSS Supplier:
WEST 2LP
Turbine Supplier:
TOSHIBA CORPORATION IAEA
Thermal Power:
3400 MWt
Net Capacity:
1117 MWe
Gross Capacity:
1,250 MWe IAEA
Design Capacity:
1,117 MWe IAEA
Efficiency:
32.9%
Status:
Operating
Lifetime Output:
13.8 TWh through 2025 IAEA
Licensing
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 #:
05200026
License #:
NPF-92
License Type:
OL-FP
Construction Start:
2013-11-19 IAEA
Operating Lic:
2023-07-28
First Criticality:
2024-02-14 IAEA
Grid Connection:
2024-03-06 IAEA
Commercial Op:
2024-04-29
License Exp:
2063-07-28
Market & Region
EIA market and grid-region classifications: NERC reliability region, U.S. Census region, balancing authority responsible for grid operations, and whether the unit operates as a rate-regulated utility or a competitive merchant generator. Hover any value for the full name.
NERC Region:
SERC
— SERC Reliability Corporation
Census Region:
SAT
— South Atlantic
Balancing Authority:
SOCO
— Southern Company
Market Structure:
Regulated
— Rate-regulated utility (cost-of-service pricing)