County annual report · FIPS 12089
2020 Nassau County, FL Power Outage Report
In 2020, customers in Nassau County, FL went without power for an average of 3.4 hours, a total of 178K customer-hours (Florida average 3.6 hours). That ranks 33rd worst of 67 Florida counties and 1756th of 3,019 nationally.
Compared with FL, the US and 2019
Coverage line is EAGLE-I's share of Florida customers tracked each year.
Biggest outages in Nassau County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 7, 2020 12:45 | July 7, 2020 20:30 | 7h 45m | 11,132 | 3,840 |
| 2 | February 6, 2020 13:45 | February 8, 2020 21:45 | 2d 8h | 9,065 | 28K |
| 3 | September 28, 2020 15:15 | September 28, 2020 22:45 | 7h 30m | 8,331 | 6,265 |
| 4 | August 10, 2020 00:45 | August 13, 2020 07:30 | 3d 6h | 4,626 | 14K |
| 5 | January 7, 2020 13:30 | January 8, 2020 00:30 | 11h | 3,394 | 2,614 |
| 6 | May 21, 2020 13:30 | May 21, 2020 16:45 | 3h 15m | 3,171 | 834 |
| 7 | March 31, 2020 07:15 | April 1, 2020 06:15 | 23h | 3,157 | 2,573 |
| 8 | May 13, 2020 14:45 | May 13, 2020 20:45 | 6h | 3,146 | 2,104 |
| 9 | August 4, 2020 21:30 | August 5, 2020 20:45 | 23h 15m | 2,842 | 7,756 |
| 10 | June 24, 2020 19:15 | June 25, 2020 05:30 | 10h 15m | 2,482 | 4,563 |
Outage episodes by size in 2020: 117 reached 100+ customers, 37 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 2020, 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 | 2020 | 70 min | 0.75 | 49 min | 0.59 |
| Okefenoke Rural El Member Corp | 2020 | 4.4 hrs | 2.96 | 4.4 hrs | 2.96 |
| 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 2020; 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, 2020, 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/2020/florida/nassau-county