County annual report · FIPS 12089
2018 Nassau County, FL Power Outage Report
In 2018, customers in Nassau County, FL went without power for an average of 4.3 hours, a total of 223K customer-hours (Florida average 5.5 hours). That ranks 23rd worst of 67 Florida counties and 1194th 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 Nassau 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 | March 21, 2018 12:45 | March 22, 2018 02:45 | 14h | 16,334 | 8,763 |
| 2 | January 3, 2018 12:00 | January 5, 2018 21:30 | 2d 9h | 8,112 | 93K |
| 3 | January 8, 2018 13:30 | January 8, 2018 19:00 | 5h 30m | 5,848 | 2,921 |
| 4 | April 15, 2018 19:00 | April 16, 2018 09:45 | 14h 45m | 4,088 | 2,705 |
| 5 | March 16, 2018 18:00 | March 16, 2018 18:15 | 15m | 3,035 | 759 |
| 6 | February 21, 2018 13:00 | February 21, 2018 20:15 | 7h 15m | 2,859 | 808 |
| 7 | November 30, 2018 12:30 | December 1, 2018 00:00 | 11h 30m | 2,817 | 1,075 |
| 8 | December 15, 2018 01:15 | December 15, 2018 14:30 | 13h 15m | 2,733 | 4,266 |
| 9 | October 10, 2018 20:30 | October 11, 2018 03:30 | 7h | 2,703 | 1,764 |
| 10 | December 22, 2018 16:30 | December 23, 2018 07:45 | 15h 15m | 2,656 | 2,917 |
Outage episodes by size in 2018: 118 reached 100+ customers, 43 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 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 |
| 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 2018; 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, 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/nassau-county