County annual report · FIPS 13135
2023 Gwinnett County, GA Power Outage Report
In 2023, customers in Gwinnett County, GA went without power for an average of 4.8 hours, a total of 1.1M customer-hours (Georgia average 6.6 hours). That ranks 103rd worst of 159 Georgia counties and 1508th of 2,977 nationally.
Compared with GA, the US and 2022
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Gwinnett County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 20, 2023 04:30 | July 23, 2023 08:00 | 3d 3h | 44,637 | 307K |
| 2 | June 25, 2023 18:45 | June 27, 2023 09:15 | 1d 14h | 13,196 | 77K |
| 3 | February 10, 2023 14:45 | February 13, 2023 03:00 | 2d 12h | 10,160 | 37K |
| 4 | June 27, 2023 10:30 | June 29, 2023 03:15 | 1d 16h | 8,348 | 8,365 |
| 5 | August 6, 2023 11:15 | August 9, 2023 07:00 | 2d 19h | 7,547 | 29K |
| 6 | January 3, 2023 09:30 | January 5, 2023 04:45 | 1d 19h | 6,732 | 13K |
| 7 | August 12, 2023 08:15 | August 14, 2023 07:30 | 1d 23h | 6,078 | 27K |
| 8 | August 27, 2023 07:45 | September 2, 2023 01:00 | 5d 17h | 5,926 | 56K |
| 9 | May 13, 2023 13:45 | May 15, 2023 05:30 | 1d 15h | 5,770 | 69K |
| 10 | January 23, 2023 06:00 | January 25, 2023 00:45 | 1d 18h | 5,568 | 16K |
Outage episodes by size in 2023: 187 reached 100+ customers, 75 reached 1,000+ customers, 3 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Gwinnett County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Georgia Power Co | 2023 | 6.1 hrs | 1.75 | 2.3 hrs | 1.24 |
| Jackson Electric Member Corp - (GA) | 2023 | 3.5 hrs | 1.58 | 69 min | 0.98 |
| Walton Electric Member Corp | 2023 | 3.9 hrs | 2.17 | 2.1 hrs | 1.41 |
| Sawnee Electric Membership Corporation | 2023 | 3.0 hrs | 0.97 | 25 min | 0.44 |
| City of Norcross- (GA) | - | - | - | - | - |
| City of Buford | - | - | - | - | - |
| City of Lawrenceville - (GA) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Georgia's customers in 2023; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 224,403 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Gwinnett County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Gwinnett County, GA annual power outage report, 2023, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2023/georgia/gwinnett-county