County annual report · FIPS 13167
2017 Johnson County, GA Power Outage Report
In 2017, customers in Johnson County, GA went without power for an average of 8.6 hours, a total of 39K customer-hours (Georgia average 14.2 hours). That ranks 99th worst of 158 Georgia counties and 624th 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 Johnson 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 11:45 | September 16, 2017 21:30 | 5d 9h | 1,575 | 35K |
| 2 | December 13, 2017 21:00 | December 13, 2017 22:30 | 1h 30m | 1,231 | 1,171 |
| 3 | January 21, 2017 19:15 | January 21, 2017 21:15 | 2h | 292 | 511 |
| 4 | March 22, 2017 03:00 | March 22, 2017 11:00 | 8h | 273 | 729 |
| 5 | December 1, 2017 00:30 | December 1, 2017 02:45 | 2h 15m | 156 | 351 |
| 6 | August 27, 2017 21:30 | August 28, 2017 02:00 | 4h 30m | 138 | 621 |
| 7 | November 27, 2017 16:30 | November 27, 2017 20:00 | 3h 30m | 47 | 55 |
| 8 | December 13, 2017 12:30 | December 13, 2017 14:30 | 2h | 42 | 84 |
| 9 | November 21, 2017 21:15 | November 21, 2017 21:30 | 15m | 40 | 10 |
| 10 | December 4, 2017 00:30 | December 4, 2017 02:15 | 1h 45m | 38 | 67 |
Outage episodes by size in 2017: 6 reached 100+ customers, 2 reached 1,000+ customers, 0 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 Johnson 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 |
| Jefferson Electric Member Corp | 2017 | 8.0 hrs | 1.69 | 86 min | 0.99 |
| Washington Elec Member Corp | 2017 | 37.0 hrs | - | 3.7 hrs | - |
| Altamaha Electric Member Corp | 2017 | 1.7 hrs | 1.98 | 32 min | 0.64 |
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 ÷ 4,550 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. Johnson County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Johnson 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/johnson-county