County annual report · FIPS 13261
2021 Sumter County, GA Power Outage Report
In 2021, customers in Sumter County, GA went without power for an average of 4.3 hours, a total of 60K customer-hours (Georgia average 2.4 hours). That ranks 43rd worst of 159 Georgia counties and 1484th 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 Sumter 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 | August 12, 2021 00:45 | August 12, 2021 23:45 | 23h | 2,771 | 8,339 |
| 2 | June 8, 2021 22:00 | June 9, 2021 19:15 | 21h 15m | 1,778 | 7,726 |
| 3 | May 4, 2021 22:30 | May 6, 2021 01:45 | 1d 3h | 1,273 | 7,683 |
| 4 | August 27, 2021 10:45 | August 27, 2021 21:15 | 10h 30m | 1,086 | 990 |
| 5 | August 17, 2021 02:15 | August 18, 2021 22:45 | 1d 20h | 907 | 6,315 |
| 6 | June 20, 2021 01:30 | June 20, 2021 17:30 | 16h | 681 | 1,429 |
| 7 | August 14, 2021 20:00 | August 15, 2021 03:30 | 7h 30m | 657 | 507 |
| 8 | March 31, 2021 02:15 | March 31, 2021 03:15 | 1h | 644 | 484 |
| 9 | September 14, 2021 12:45 | September 14, 2021 16:45 | 4h | 621 | 632 |
| 10 | November 2, 2021 20:15 | November 3, 2021 02:15 | 6h | 423 | 1,572 |
Outage episodes by size in 2021: 41 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 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 |
| Flint Electric Membership Corp | 2021 | 6.8 hrs | 0.96 | 62 min | 0.83 |
| Sumter Electric Member Corp | 2021 | 3.0 hrs | - | 3.0 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 90% of Georgia's customers in 2021; 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, 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/sumter-county