County annual report · FIPS 12117
2017 Seminole County, FL Power Outage Report
In 2017, customers in Seminole County, FL went without power for an average of 78.6 hours, a total of 15.9M customer-hours (Florida average 49.3 hours). That ranks 9th worst of 67 Florida counties and 24th of 2,786 nationally.
Compared with FL, the US and 2016
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Seminole County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 10, 2017 07:15 | September 25, 2017 05:00 | 14d 21h | 198,450 | 15.6M |
| 2 | August 18, 2017 14:30 | August 19, 2017 00:00 | 9h 30m | 6,473 | 3,913 |
| 3 | September 1, 2017 03:45 | September 3, 2017 03:45 | 2d | 5,770 | 7,858 |
| 4 | June 15, 2017 10:30 | June 16, 2017 00:00 | 13h 30m | 5,548 | 3,081 |
| 5 | May 21, 2017 13:00 | May 21, 2017 20:30 | 7h 30m | 5,048 | 6,960 |
| 6 | May 13, 2017 15:45 | May 14, 2017 09:45 | 18h | 3,194 | 5,173 |
| 7 | February 24, 2017 02:30 | February 24, 2017 15:15 | 12h 45m | 3,076 | 4,760 |
| 8 | May 25, 2017 10:15 | May 26, 2017 03:30 | 17h 15m | 2,521 | 1,637 |
| 9 | December 13, 2017 04:30 | December 13, 2017 11:15 | 6h 45m | 2,497 | 2,460 |
| 10 | May 24, 2017 09:30 | May 25, 2017 06:00 | 20h 30m | 2,408 | 6,387 |
Outage episodes by size in 2017: 179 reached 100+ customers, 52 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 2017, 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 | 2017 | 66.0 hrs | 2.00 | 59 min | 0.69 |
| Duke Energy Florida, LLC | 2017 | 1.7 hrs | 1.31 | 1.6 hrs | 1.25 |
| 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 2017; 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, 2017, 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/2017/florida/seminole-county