County annual report · FIPS 12119
2021 Sumter County, FL Power Outage Report
In 2021, customers in Sumter County, FL went without power for an average of 1.0 hours, a total of 99K customer-hours (Florida average 1.9 hours). That ranks 66th worst of 67 Florida counties and 2677th of 2,974 nationally.
Compared with FL, the US and 2020
Coverage line is EAGLE-I's share of Florida 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 28, 2021 17:30 | October 29, 2021 03:45 | 10h 15m | 2,731 | 6,511 |
| 2 | November 18, 2021 18:45 | November 19, 2021 01:00 | 6h 15m | 1,928 | 999 |
| 3 | August 28, 2021 07:45 | August 28, 2021 09:45 | 2h | 1,923 | 2,409 |
| 4 | November 29, 2021 08:00 | November 29, 2021 18:00 | 10h | 1,922 | 1,601 |
| 5 | April 10, 2021 19:30 | April 11, 2021 02:45 | 7h 15m | 1,917 | 1,826 |
| 6 | July 5, 2021 01:30 | July 5, 2021 06:15 | 4h 45m | 1,887 | 1,459 |
| 7 | June 24, 2021 18:15 | June 24, 2021 20:30 | 2h 15m | 1,822 | 967 |
| 8 | September 23, 2021 08:30 | September 23, 2021 18:45 | 10h 15m | 1,679 | 488 |
| 9 | May 6, 2021 17:00 | May 7, 2021 01:45 | 8h 45m | 1,630 | 3,375 |
| 10 | March 8, 2021 13:15 | March 8, 2021 23:30 | 10h 15m | 1,600 | 1,709 |
Outage episodes by size in 2021: 98 reached 100+ customers, 25 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 |
|---|---|---|---|---|---|
| Duke Energy Florida, LLC | 2021 | 1.6 hrs | 1.04 | 90 min | 1.00 |
| Withlacoochee River Elec Coop | 2021 | 1.8 hrs | 1.49 | 1.8 hrs | 1.49 |
| Duke Energy | - | - | - | - | - |
| Sumter Electric Coop, Inc | - | - | - | - | - |
| City of Leesburg - (FL) | - | - | - | - | - |
| City of Bushnell - (FL) | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 98% of Florida's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 102,391 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, FL 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/florida/sumter-county