County annual report · FIPS 12089
2024 Nassau County, FL Power Outage Report
In 2024, customers in Nassau County, FL went without power for an average of 11.8 hours, a total of 618K customer-hours (Florida average 24.6 hours). That ranks 45th worst of 67 Florida counties and 800th of 2,990 nationally.
Compared with FL, the US and 2023
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Nassau County, 2024
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 26, 2024 17:00 | October 1, 2024 03:30 | 4d 10h | 31,083 | 469K |
| 2 | June 28, 2024 13:00 | June 29, 2024 03:00 | 14h | 4,264 | 1,744 |
| 3 | August 5, 2024 09:30 | August 8, 2024 03:30 | 2d 18h | 3,283 | 31K |
| 4 | May 10, 2024 13:15 | May 12, 2024 08:15 | 1d 19h | 2,938 | 24K |
| 5 | December 6, 2024 15:00 | December 6, 2024 16:45 | 1h 45m | 2,533 | 639 |
| 6 | September 17, 2024 12:15 | September 18, 2024 02:45 | 14h 30m | 2,495 | 1,632 |
| 7 | August 2, 2024 17:15 | August 3, 2024 01:15 | 8h | 2,462 | 2,863 |
| 8 | June 22, 2024 21:15 | June 23, 2024 21:45 | 1d | 2,410 | 2,128 |
| 9 | June 29, 2024 06:00 | June 30, 2024 17:15 | 1d 11h | 1,960 | 1,689 |
| 10 | July 18, 2024 18:30 | July 20, 2024 04:00 | 1d 9h | 1,758 | 3,126 |
Outage episodes by size in 2024: 97 reached 100+ customers, 24 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 2024, 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 | 2024 | 11.7 hrs | 1.04 | 46 min | 0.44 |
| Okefenoke Rural El Member Corp | 2024 | 29.0 hrs | 4.60 | 3.5 hrs | 2.85 |
| 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 n/a of Florida's customers in 2024; 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, 2024, 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/2024/florida/nassau-county