County annual report · FIPS 12117
2018 Seminole County, FL Power Outage Report
In 2018, customers in Seminole County, FL went without power for an average of 2.1 hours, a total of 414K customer-hours (Florida average 5.5 hours). That ranks 42nd worst of 67 Florida counties and 1847th of 2,798 nationally.
Compared with FL, the US and 2017
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Seminole County, 2018
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 14, 2018 18:15 | June 15, 2018 08:45 | 14h 30m | 12,603 | 17K |
| 2 | September 18, 2018 14:00 | September 21, 2018 01:45 | 2d 11h | 8,352 | 13K |
| 3 | January 21, 2018 11:30 | January 21, 2018 12:00 | 30m | 6,060 | 1,515 |
| 4 | March 19, 2018 20:30 | March 20, 2018 10:15 | 13h 45m | 5,244 | 28K |
| 5 | April 15, 2018 11:45 | April 16, 2018 08:15 | 20h 30m | 4,775 | 15K |
| 6 | March 17, 2018 18:00 | March 17, 2018 21:15 | 3h 15m | 4,377 | 1,968 |
| 7 | November 14, 2018 06:15 | November 15, 2018 10:00 | 1d 3h | 4,086 | 1,751 |
| 8 | January 29, 2018 03:00 | January 29, 2018 21:30 | 18h 30m | 3,653 | 2,682 |
| 9 | January 3, 2018 12:15 | January 5, 2018 07:30 | 1d 19h | 3,650 | 10K |
| 10 | September 27, 2018 15:00 | September 28, 2018 00:30 | 9h 30m | 3,236 | 2,144 |
Outage episodes by size in 2018: 191 reached 100+ customers, 71 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 2018, 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 | 2018 | 60 min | 0.71 | 55 min | 0.65 |
| Duke Energy Florida, LLC | 2018 | 3.8 hrs | 1.38 | 1.9 hrs | 1.20 |
| 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 97% of Florida's customers in 2018; 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, 2018, 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/2018/florida/seminole-county