County annual report · FIPS 13135
2015 Gwinnett County, GA Power Outage Report
In 2015, customers in Gwinnett County, GA went without power for an average of 2.7 hours, a total of 616K customer-hours (Georgia average 1.8 hours). That ranks 29th worst of 157 Georgia counties and 985th of 2,484 nationally.
Compared with GA, the US
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Gwinnett County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 16, 2015 23:45 | February 18, 2015 06:30 | 1d 6h | 33,065 | 353K |
| 2 | October 30, 2015 16:30 | October 30, 2015 22:30 | 6h | 5,395 | 1,771 |
| 3 | November 13, 2015 13:15 | November 14, 2015 18:00 | 1d 4h | 5,241 | 4,034 |
| 4 | August 12, 2015 11:30 | August 13, 2015 10:45 | 23h 15m | 5,173 | 3,299 |
| 5 | February 4, 2015 16:00 | February 4, 2015 21:30 | 5h 30m | 4,728 | 1,698 |
| 6 | December 28, 2015 15:30 | December 29, 2015 11:45 | 20h 15m | 4,080 | 1,478 |
| 7 | July 14, 2015 12:00 | July 15, 2015 08:30 | 20h 30m | 3,510 | 8,332 |
| 8 | April 2, 2015 23:30 | April 3, 2015 04:00 | 4h 30m | 3,439 | 875 |
| 9 | June 26, 2015 10:30 | June 27, 2015 08:00 | 21h 30m | 3,411 | 9,990 |
| 10 | February 27, 2015 11:30 | February 27, 2015 19:30 | 8h | 3,375 | 4,387 |
Outage episodes by size in 2015: 141 reached 100+ customers, 57 reached 1,000+ customers, 1 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 2015, 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 | 2015 | 2.9 hrs | 1.50 | 1.9 hrs | 1.30 |
| Jackson Electric Member Corp - (GA) | 2015 | 16.2 hrs | 2.36 | 67 min | 0.94 |
| Walton Electric Member Corp | 2015 | 2.6 hrs | 1.63 | 1.6 hrs | 1.31 |
| Sawnee Electric Membership Corporation | 2015 | 10.2 hrs | 1.77 | 59 min | 1.46 |
| 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 2015; 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, 2015, 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/2015/georgia/gwinnett-county