County annual report · FIPS 13167
2020 Johnson County, GA Power Outage Report
In 2020, customers in Johnson County, GA went without power for an average of 6.3 hours, a total of 29K customer-hours (Georgia average 7.4 hours). That ranks 59th worst of 159 Georgia counties and 1189th of 3,019 nationally.
Compared with GA, the US and 2019
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Johnson County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 4, 2020 13:45 | June 4, 2020 16:15 | 2h 30m | 3,532 | 3,125 |
| 2 | April 13, 2020 07:15 | April 14, 2020 02:15 | 19h | 2,396 | 6,257 |
| 3 | December 17, 2020 13:00 | December 17, 2020 14:00 | 1h | 1,800 | 451 |
| 4 | August 13, 2020 20:15 | August 13, 2020 22:45 | 2h 30m | 1,590 | 2,408 |
| 5 | September 17, 2020 15:15 | September 17, 2020 17:45 | 2h 30m | 1,461 | 757 |
| 6 | July 2, 2020 23:00 | July 3, 2020 02:15 | 3h 15m | 898 | 294 |
| 7 | January 4, 2020 22:15 | January 5, 2020 07:45 | 9h 30m | 892 | 1,627 |
| 8 | July 27, 2020 23:00 | July 28, 2020 00:00 | 1h | 819 | 819 |
| 9 | November 30, 2020 09:00 | November 30, 2020 11:15 | 2h 15m | 427 | 637 |
| 10 | November 10, 2020 23:30 | November 11, 2020 01:15 | 1h 45m | 426 | 638 |
Outage episodes by size in 2020: 22 reached 100+ customers, 5 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 2020, 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 | 2020 | 8.8 hrs | 1.92 | 2.4 hrs | 1.33 |
| Jefferson Electric Member Corp | 2020 | 2.4 hrs | 1.49 | 1.7 hrs | 1.21 |
| Washington Elec Member Corp | 2020 | 5.3 hrs | - | 4.6 hrs | - |
| Altamaha Electric Member Corp | 2020 | 2.5 hrs | 1.77 | 2.5 hrs | 1.77 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 88% of Georgia's customers in 2020; 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, 2020, 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/2020/georgia/johnson-county