County annual report · FIPS 12117
2025 Seminole County, FL Power Outage Report
In 2025, customers in Seminole County, FL went without power for an average of 1.7 hours, a total of 336K customer-hours (Florida average 2.1 hours). That ranks 43rd worst of 67 Florida counties and 2547th of 3,000 nationally.
Compared with FL, the US and 2024
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Seminole 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 6, 2025 10:15 | June 7, 2025 03:45 | 17h 30m | 3,267 | 5,608 |
| 2 | March 10, 2025 10:45 | March 12, 2025 22:45 | 2d 12h | 3,039 | 11K |
| 3 | July 9, 2025 10:15 | July 12, 2025 18:30 | 3d 8h | 3,014 | 13K |
| 4 | May 20, 2025 11:15 | May 24, 2025 02:15 | 3d 15h | 2,872 | 7,132 |
| 5 | July 27, 2025 18:45 | July 28, 2025 11:30 | 16h 45m | 2,763 | 4,046 |
| 6 | July 28, 2025 12:15 | July 31, 2025 23:30 | 3d 11h | 2,757 | 7,979 |
| 7 | April 23, 2025 01:30 | April 23, 2025 22:15 | 20h 45m | 2,664 | 2,494 |
| 8 | June 12, 2025 11:45 | June 13, 2025 08:30 | 20h 45m | 2,646 | 5,584 |
| 9 | August 4, 2025 09:45 | August 8, 2025 06:45 | 3d 21h | 2,601 | 15K |
| 10 | June 23, 2025 07:00 | June 24, 2025 03:45 | 20h 45m | 2,544 | 2,251 |
Outage episodes by size in 2025: 189 reached 100+ customers, 46 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 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 |
|---|---|---|---|---|---|
| Florida Power & Light Co | 2024 | 11.7 hrs | 1.04 | 46 min | 0.44 |
| Duke Energy Florida, LLC | 2024 | 41.7 hrs | 2.21 | 84 min | 0.95 |
| Duke Energy | - | - | - | - | - |
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 Florida's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 201,776 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, FL 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/florida/seminole-county