County annual report · FIPS 13135
2019 Gwinnett County, GA Power Outage Report
In 2019, customers in Gwinnett County, GA went without power for an average of 3.1 hours, a total of 696K customer-hours (Georgia average 2.5 hours). That ranks 66th worst of 159 Georgia counties and 1603rd of 2,945 nationally.
Compared with GA, the US and 2018
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Gwinnett County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 19, 2019 06:45 | April 21, 2019 01:45 | 1d 19h | 11,514 | 68K |
| 2 | June 22, 2019 05:45 | June 24, 2019 06:15 | 2d | 10,793 | 46K |
| 3 | January 20, 2019 10:15 | January 21, 2019 03:30 | 17h 15m | 9,323 | 24K |
| 4 | April 14, 2019 12:30 | April 16, 2019 02:45 | 1d 14h | 9,006 | 26K |
| 5 | June 24, 2019 11:30 | June 26, 2019 02:00 | 1d 14h | 8,906 | 19K |
| 6 | February 24, 2019 13:15 | February 25, 2019 13:15 | 1d | 7,718 | 12K |
| 7 | January 23, 2019 12:45 | January 24, 2019 01:45 | 13h | 5,808 | 4,924 |
| 8 | August 23, 2019 13:00 | August 24, 2019 10:45 | 21h 45m | 5,735 | 3,027 |
| 9 | December 1, 2019 18:30 | December 2, 2019 01:45 | 7h 15m | 5,636 | 4,368 |
| 10 | December 4, 2019 04:45 | December 4, 2019 23:15 | 18h 30m | 5,423 | 6,324 |
Outage episodes by size in 2019: 211 reached 100+ customers, 76 reached 1,000+ customers, 2 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 2019, 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 | 2018 | 3.8 hrs | 1.48 | 2.1 hrs | 1.21 |
| Jackson Electric Member Corp - (GA) | 2018 | 82 min | 1.15 | 75 min | 1.05 |
| Walton Electric Member Corp | 2018 | 3.0 hrs | 1.92 | 1.8 hrs | 1.50 |
| Sawnee Electric Membership Corporation | 2018 | 72 min | 1.05 | 48 min | 0.88 |
| 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 86% of Georgia's customers in 2019; 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, 2019, 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/2019/georgia/gwinnett-county