County annual report · FIPS 13135
2017 Gwinnett County, GA Power Outage Report
In 2017, customers in Gwinnett County, GA went without power for an average of 13.8 hours, a total of 3.1M customer-hours (Georgia average 14.2 hours). That ranks 79th worst of 158 Georgia counties and 401st of 2,786 nationally.
Compared with GA, the US and 2016
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Gwinnett County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 11, 2017 08:30 | September 17, 2017 16:30 | 6d 8h | 101,504 | 2.5M |
| 2 | March 22, 2017 00:45 | March 24, 2017 01:30 | 2d | 27,200 | 175K |
| 3 | March 31, 2017 00:45 | April 1, 2017 04:30 | 1d 3h | 7,814 | 19K |
| 4 | March 1, 2017 11:45 | March 2, 2017 07:30 | 19h 45m | 6,252 | 12K |
| 5 | March 10, 2017 09:15 | March 10, 2017 21:15 | 12h | 5,223 | 1,821 |
| 6 | May 29, 2017 18:15 | June 1, 2017 02:30 | 2d 8h | 4,714 | 5,329 |
| 7 | August 29, 2017 10:30 | August 30, 2017 05:15 | 18h 45m | 4,627 | 4,782 |
| 8 | October 8, 2017 05:00 | October 9, 2017 09:00 | 1d 4h | 4,627 | 11K |
| 9 | May 4, 2017 21:30 | May 5, 2017 20:30 | 23h | 4,437 | 8,462 |
| 10 | May 20, 2017 20:15 | May 22, 2017 03:30 | 1d 7h | 3,960 | 13K |
Outage episodes by size in 2017: 176 reached 100+ customers, 61 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 2017, 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 | 2017 | 18.4 hrs | 2.19 | 1.9 hrs | 1.16 |
| Jackson Electric Member Corp - (GA) | 2017 | 15.4 hrs | 2.10 | 75 min | 1.00 |
| Walton Electric Member Corp | 2017 | 16.8 hrs | 1.54 | 1.8 hrs | 0.72 |
| Sawnee Electric Membership Corporation | 2017 | 4.8 hrs | 1.88 | 78 min | 1.28 |
| 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 2017; 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, 2017, 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/2017/georgia/gwinnett-county