County annual report · FIPS 12117
2023 Seminole County, FL Power Outage Report
In 2023, customers in Seminole County, FL went without power for an average of 2.0 hours, a total of 410K customer-hours (Florida average 3.4 hours). That ranks 50th worst of 67 Florida counties and 2280th of 2,977 nationally.
Compared with FL, the US and 2022
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Seminole County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 4, 2023 18:15 | July 6, 2023 20:30 | 2d 2h | 10,639 | 19K |
| 2 | May 13, 2023 05:00 | May 13, 2023 19:45 | 14h 45m | 5,767 | 6,762 |
| 3 | August 7, 2023 06:15 | August 8, 2023 20:30 | 1d 14h | 4,786 | 6,769 |
| 4 | April 20, 2023 11:45 | May 1, 2023 06:45 | 10d 19h | 4,701 | 53K |
| 5 | March 13, 2023 09:45 | March 14, 2023 00:00 | 14h 15m | 4,054 | 8,240 |
| 6 | February 15, 2023 11:30 | February 16, 2023 08:30 | 21h | 3,891 | 5,251 |
| 7 | July 19, 2023 13:45 | July 22, 2023 03:15 | 2d 13h | 3,694 | 14K |
| 8 | April 9, 2023 20:30 | April 10, 2023 18:15 | 21h 45m | 3,693 | 8,646 |
| 9 | June 22, 2023 19:30 | June 25, 2023 08:45 | 2d 13h | 3,692 | 21K |
| 10 | May 19, 2023 12:30 | May 20, 2023 08:15 | 19h 45m | 3,326 | 2,553 |
Outage episodes by size in 2023: 161 reached 100+ customers, 53 reached 1,000+ customers, 1 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 2023, 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 | 2023 | 78 min | 0.64 | 50 min | 0.51 |
| Duke Energy Florida, LLC | 2023 | 3.0 hrs | 1.08 | 84 min | 0.96 |
| 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 2023; 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, 2023, 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/2023/florida/seminole-county