County annual report · FIPS 13261
2025 Sumter County, GA Power Outage Report
In 2025, customers in Sumter County, GA went without power for an average of 4.1 hours, a total of 58K customer-hours (Georgia average 4.6 hours). That ranks 87th worst of 159 Georgia counties and 1727th of 3,000 nationally.
Compared with GA, the US and 2024
Coverage line is EAGLE-I's share of Georgia customers tracked each year.
Biggest outages in Sumter County, 2025
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 3, 2025 15:30 | June 3, 2025 23:00 | 7h 30m | 1,641 | 1,597 |
| 2 | May 6, 2025 16:15 | May 6, 2025 20:15 | 4h | 1,207 | 339 |
| 3 | December 22, 2025 09:15 | December 22, 2025 23:15 | 14h | 1,186 | 2,097 |
| 4 | February 19, 2025 14:45 | February 19, 2025 15:30 | 45m | 1,102 | 827 |
| 5 | February 16, 2025 09:45 | February 17, 2025 05:00 | 19h 15m | 965 | 3,116 |
| 6 | July 26, 2025 12:00 | July 28, 2025 14:45 | 2d 2h | 836 | 1,766 |
| 7 | May 27, 2025 14:00 | May 28, 2025 07:45 | 17h 45m | 710 | 2,913 |
| 8 | August 19, 2025 08:15 | August 19, 2025 18:00 | 9h 45m | 687 | 385 |
| 9 | April 9, 2025 18:45 | April 9, 2025 21:00 | 2h 15m | 684 | 179 |
| 10 | May 10, 2025 20:00 | May 11, 2025 13:45 | 17h 45m | 671 | 6,165 |
Outage episodes by size in 2025: 57 reached 100+ customers, 4 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 Sumter County reported on EIA Form 861 for 2025, 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 | 2024 | 25.3 hrs | 2.07 | 2.1 hrs | 1.02 |
| Flint Electric Membership Corp | 2024 | 2.6 hrs | 1.40 | 1.7 hrs | 1.07 |
| Sumter Electric Member Corp | 2024 | 3.6 hrs | - | 2.6 hrs | - |
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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 13,979 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. Sumter County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sumter County, GA annual power outage report, 2025, 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/2025/georgia/sumter-county