County annual report · FIPS 12089
2015 Nassau County, FL Power Outage Report
In 2015, customers in Nassau County, FL went without power for an average of 0.6 hours, a total of 33K customer-hours (Florida average 1.6 hours). That ranks 64th worst of 67 Florida counties and 1990th of 2,484 nationally.
Compared with FL, the US
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Nassau County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 23, 2015 21:45 | August 24, 2015 08:15 | 10h 30m | 16,192 | 10K |
| 2 | September 30, 2015 19:00 | October 1, 2015 01:00 | 6h | 1,787 | 1,629 |
| 3 | August 26, 2015 21:30 | August 27, 2015 04:00 | 6h 30m | 1,749 | 1,773 |
| 4 | February 3, 2015 15:00 | February 3, 2015 20:00 | 5h | 1,222 | 318 |
| 5 | November 22, 2015 09:45 | November 22, 2015 11:15 | 1h 30m | 1,203 | 1,209 |
| 6 | June 23, 2015 01:00 | June 23, 2015 11:45 | 10h 45m | 950 | 1,881 |
| 7 | April 19, 2015 21:15 | April 20, 2015 04:30 | 7h 15m | 569 | 862 |
| 8 | December 22, 2015 17:00 | December 22, 2015 21:15 | 4h 15m | 463 | 512 |
| 9 | February 2, 2015 15:45 | February 2, 2015 23:00 | 7h 15m | 403 | 771 |
| 10 | May 19, 2015 21:00 | May 20, 2015 06:15 | 9h 15m | 349 | 557 |
Outage episodes by size in 2015: 27 reached 100+ customers, 5 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 2015, 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 | 2015 | 65 min | 0.82 | 62 min | 0.79 |
| Okefenoke Rural El Member Corp | 2015 | 4.0 hrs | 2.91 | 3.8 hrs | 2.76 |
| 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 2015; 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, 2015, 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/2015/florida/nassau-county