County annual report · FIPS 12089
2019 Nassau County, FL Power Outage Report
In 2019, customers in Nassau County, FL went without power for an average of 2.6 hours, a total of 138K customer-hours (Florida average 1.9 hours). That ranks 28th worst of 67 Florida counties and 1790th of 2,945 nationally.
Compared with FL, the US and 2018
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Nassau County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 19, 2019 14:15 | April 21, 2019 05:00 | 1d 14h | 13,152 | 36K |
| 2 | August 2, 2019 10:30 | August 2, 2019 19:00 | 8h 30m | 3,724 | 1,783 |
| 3 | July 19, 2019 16:00 | July 20, 2019 01:30 | 9h 30m | 3,372 | 2,005 |
| 4 | June 12, 2019 13:15 | June 13, 2019 07:30 | 18h 15m | 2,919 | 3,601 |
| 5 | August 22, 2019 12:00 | August 22, 2019 22:15 | 10h 15m | 2,886 | 884 |
| 6 | December 9, 2019 19:15 | December 10, 2019 02:45 | 7h 30m | 2,880 | 1,252 |
| 7 | April 11, 2019 19:30 | April 11, 2019 20:00 | 30m | 2,724 | 682 |
| 8 | October 7, 2019 17:15 | October 7, 2019 19:15 | 2h | 2,456 | 766 |
| 9 | July 31, 2019 03:15 | July 31, 2019 04:30 | 1h 15m | 2,428 | 1,840 |
| 10 | July 11, 2019 22:30 | July 12, 2019 09:30 | 11h | 2,395 | 2,843 |
Outage episodes by size in 2019: 114 reached 100+ customers, 34 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 Nassau County reported on EIA Form 861 for 2019, 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 |
| Okefenoke Rural El Member Corp | 2018 | 8.5 hrs | 3.34 | 3.3 hrs | 2.55 |
| Florida Public Utilities Co | - | - | - | - | - |
| JEA | - | - | - | - | - |
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 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 52,493 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. Nassau County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Nassau County, FL annual power outage report, 2019, 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/2019/florida/nassau-county