County annual report · FIPS 13167
2018 Johnson County, GA Power Outage Report
In 2018, customers in Johnson County, GA went without power for an average of 41.4 hours, a total of 188K customer-hours (Georgia average 4.7 hours). That ranks 13th worst of 157 Georgia counties and 139th of 2,798 nationally.
Compared with GA, the US and 2017
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Johnson County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 11, 2018 00:00 | October 14, 2018 01:15 | 3d 1h | 4,835 | 168K |
| 2 | July 15, 2018 14:45 | July 15, 2018 19:15 | 4h 30m | 1,561 | 1,655 |
| 3 | August 21, 2018 13:45 | August 21, 2018 15:15 | 1h 30m | 427 | 641 |
| 4 | September 1, 2018 19:15 | September 2, 2018 01:15 | 6h | 426 | 1,652 |
| 5 | November 15, 2018 06:30 | November 15, 2018 10:00 | 3h 30m | 274 | 482 |
| 6 | August 2, 2018 18:45 | August 2, 2018 23:30 | 4h 45m | 268 | 672 |
| 7 | June 25, 2018 23:30 | June 26, 2018 05:00 | 5h 30m | 254 | 543 |
| 8 | August 9, 2018 00:45 | August 9, 2018 03:30 | 2h 45m | 246 | 677 |
| 9 | July 31, 2018 13:15 | July 31, 2018 16:15 | 3h | 239 | 221 |
| 10 | June 28, 2018 01:30 | June 28, 2018 05:00 | 3h 30m | 235 | 507 |
Outage episodes by size in 2018: 24 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 2018, 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 |
| Jefferson Electric Member Corp | 2018 | 4.7 hrs | 1.82 | 2.0 hrs | 1.48 |
| Washington Elec Member Corp | 2018 | 23.8 hrs | - | 7.5 hrs | - |
| Altamaha Electric Member Corp | 2018 | 16.5 hrs | 2.42 | 43 min | 0.71 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Georgia's customers in 2018; 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, 2018, 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/2018/georgia/johnson-county