County annual report · FIPS 01119
2021 Sumter County, AL Power Outage Report
In 2021, customers in Sumter County, AL went without power for an average of 12.3 hours, a total of 84K customer-hours (Alabama average 4.6 hours). That ranks 11th worst of 65 Alabama counties and 671st of 2,974 nationally.
Compared with AL, the US and 2020
Coverage line is EAGLE-I's share of Alabama 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 | October 19, 2021 00:00 | October 19, 2021 00:30 | 30m | 3,412 | 1,175 |
| 2 | May 4, 2021 17:45 | May 6, 2021 21:00 | 2d 3h | 2,482 | 48K |
| 3 | October 23, 2021 15:45 | October 23, 2021 16:00 | 15m | 2,066 | 517 |
| 4 | September 1, 2021 16:15 | September 3, 2021 01:45 | 1d 9h | 1,508 | 7,287 |
| 5 | March 15, 2021 14:45 | March 15, 2021 18:00 | 3h 15m | 1,168 | 452 |
| 6 | April 14, 2021 19:45 | April 14, 2021 22:00 | 2h 15m | 1,092 | 551 |
| 7 | March 17, 2021 03:30 | March 17, 2021 05:15 | 1h 45m | 629 | 944 |
| 8 | March 31, 2021 00:15 | March 31, 2021 02:15 | 2h | 628 | 943 |
| 9 | April 24, 2021 04:30 | April 24, 2021 11:30 | 7h | 504 | 901 |
| 10 | December 18, 2021 13:00 | December 18, 2021 19:45 | 6h 45m | 501 | 184 |
Outage episodes by size in 2021: 37 reached 100+ customers, 6 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 |
|---|---|---|---|---|---|
| Alabama Power Co | - | - | - | - | - |
| Black Warrior 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 81% of Alabama's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 6,825 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 2017–2025.
Cite this report
MassOutage (massoutage.com), Sumter County, AL 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/). https://massoutage.com/reports/2021/alabama/sumter-county