County annual report · FIPS 13253
2021 Seminole County, GA Power Outage Report
In 2021, customers in Seminole County, GA went without power for an average of 1.7 hours, a total of 9,126 customer-hours (Georgia average 2.4 hours). That ranks 112th worst of 159 Georgia counties and 2346th of 2,974 nationally.
Compared with GA, the US and 2020
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Seminole County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 15, 2021 21:45 | July 16, 2021 02:00 | 4h 15m | 449 | 1,019 |
| 2 | April 10, 2021 15:15 | April 10, 2021 18:45 | 3h 30m | 335 | 869 |
| 3 | February 11, 2021 18:30 | February 12, 2021 01:15 | 6h 45m | 270 | 1,756 |
| 4 | October 28, 2021 16:15 | October 28, 2021 22:00 | 5h 45m | 270 | 147 |
| 5 | January 1, 2021 15:00 | January 1, 2021 18:15 | 3h 15m | 269 | 817 |
| 6 | June 19, 2021 17:30 | June 19, 2021 21:15 | 3h 45m | 264 | 697 |
| 7 | October 17, 2021 08:15 | October 17, 2021 15:15 | 7h | 204 | 178 |
| 8 | October 26, 2021 14:15 | October 26, 2021 15:45 | 1h 30m | 187 | 281 |
| 9 | August 16, 2021 20:15 | August 17, 2021 16:30 | 20h 15m | 150 | 604 |
| 10 | June 24, 2021 21:15 | June 25, 2021 03:45 | 6h 30m | 135 | 290 |
Outage episodes by size in 2021: 10 reached 100+ customers, 0 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 Seminole County reported on EIA Form 861 for 2021, 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 | 2021 | 2.4 hrs | 1.28 | 2.4 hrs | 1.25 |
| Three Notch Elec Member Corp | - | - | - | - | - |
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 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 5,243 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. Seminole County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Seminole County, GA annual power outage report, 2021, 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/2021/georgia/seminole-county