massoutage

County annual report · FIPS 12065

2023 Jefferson County, FL Power Outage Report

In 2023, customers in Jefferson County, FL went without power for an average of 85.1 hours, a total of 620K customer-hours (Florida average 3.4 hours). That ranks 6th worst of 67 Florida counties and 37th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
85.1
7,283 customers
Customer-hours out
620K
Peak customers out
9,572
Outages ≥1,000 out
6
0 of 10,000+ · 520 total
Longest outage
8d 18h
began August 30, 2023
Rank in state
6th/67
37th of 2,977 US

Compared with FL, the US and 2022

Jefferson County, FL average hours without power per customer compared with state and national averages, 2023Jefferson County 85.1 hours, Florida average 3.4 hours, US average 7.1 hours, Jefferson County, 2022 9.1 hoursJefferson CountyJefferson County85.1hFlorida averageFlorida average3.4hUS averageUS average7.1hJefferson County, 2022Jefferson County, 20…9.1h
Use the arrow keys to read values.
Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Jefferson County, FL customer-hours without power by month, 2023Jan 7,572, Feb 1,436, Mar 7,875, Apr 9,804, May 6,703, Jun 29K, Jul 6,802, Aug 291K, Sep 251K, Oct 1,576, Nov 844, Dec 6,5910100k200k300k7,572Jan1,436Feb7,875Mar9,804Apr6,703May29KJun6,802Jul291KAug251KSep1,576Oct844Nov6,591Dec
Use the arrow keys to read values.
Customer-hours; August was the worst month.

Jefferson County year over year

CSVJSON
Jefferson County, FL: average hours without power per customer by year2015: 11.3h; 2016: 43.0h; 2017: 107.9h; 2018: 32.7h, coverage 97%; 2019: 6.5h, coverage 97%; 2020: 8.1h, coverage 97%; 2021: 9.7h, coverage 98%; 2022: 9.1h, coverage 98%; 2023: 85.1h; 2024: 188.1h; 2025: 6.7h0501001502000%50%100%11.3h201543.0h2016107.9h201732.7h20186.5h20198.1h20209.7h20219.1h202285.1h2023188.1h20246.7h2025
Use the arrow keys to read values.
Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Florida customers tracked each year.

Biggest outages in Jefferson County, 2023

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1August 30, 2023 08:30September 8, 2023 03:008d 18h9,572534K
2June 17, 2023 03:00June 19, 2023 04:152d 1h1,96712K
3March 22, 2023 15:30March 22, 2023 19:153h 45m1,5641,179
4May 1, 2023 19:30May 2, 2023 01:306h1,2914,817
5December 20, 2023 11:00December 20, 2023 13:002h1,1561,881
6September 10, 2023 19:45September 10, 2023 20:451h1,1451,145
7June 14, 2023 17:15June 17, 2023 02:002d 8h96213K
8March 6, 2023 04:00March 6, 2023 08:154h 15m8493,602
9October 23, 2023 17:00October 23, 2023 18:451h 45m818247
10January 17, 2023 00:00January 17, 2023 06:006h7613,852

Outage episodes by size in 2023: 64 reached 100+ customers, 6 reached 1,000+ customers, 0 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 Jefferson County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Florida, LLC20233.0 hrs1.0884 min0.96
Tri-County Electric Coop, Inc (FL)2023180.3 hrs6.005.8 hrs3.29

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 7,283 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. Jefferson County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Jefferson County, FL annual power outage report, 2023, 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/2023/florida/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON