massoutage

County annual report · FIPS 12065

2019 Jefferson County, FL Power Outage Report

In 2019, customers in Jefferson County, FL went without power for an average of 6.5 hours, a total of 47K customer-hours (Florida average 1.9 hours). That ranks 6th worst of 67 Florida counties and 846th of 2,945 nationally.

Summary data CSVJSON
Avg hrs / customer
6.5
7,283 customers
Customer-hours out
47K
Peak customers out
2,394
Outages ≥1,000 out
1
0 of 10,000+ · 581 total
Longest outage
9d 22h
began October 15, 2019
Rank in state
6th/67
846th of 2,945 US

Compared with FL, the US and 2018

Jefferson County, FL average hours without power per customer compared with state and national averages, 2019Jefferson County 6.5 hours, Florida average 1.9 hours, US average 4.7 hours, Jefferson County, 2018 32.7 hoursJefferson CountyJefferson County6.5hFlorida averageFlorida average1.9hUS averageUS average4.7hJefferson County, 2018Jefferson County, 20…32.7h
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Average hours without power per customer in 2019; last bar is this county in 2018.

Month by month

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Jefferson County, FL customer-hours without power by month, 2019Jan 1,475, Feb 2,183, Mar 1,840, Apr 18K, May 763, Jun 3,463, Jul 3,304, Aug 4,922, Sep 4,152, Oct 2,858, Nov 2,569, Dec 2,07105k10k15k20k1,475Jan2,183Feb1,840Mar18KApr763May3,463Jun3,304Jul4,922Aug4,152Sep2,858Oct2,569Nov2,071Dec
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Customer-hours; April was the worst month.

Jefferson County year over year

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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
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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, 2019

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 19, 2019 10:30April 20, 2019 06:3020h2,39413K
2February 5, 2019 14:15February 5, 2019 14:4530m890262
3February 5, 2019 18:45February 5, 2019 19:0015m889222
4April 23, 2019 04:15April 23, 2019 06:001h 45m7071,237
5September 18, 2019 07:30September 18, 2019 10:303h7011,083
6August 27, 2019 12:30August 27, 2019 21:158h 45m686987
7January 18, 2019 08:00January 18, 2019 08:1515m661165
8August 27, 2019 02:00August 27, 2019 04:152h 15m6231,243
9April 26, 2019 04:00April 26, 2019 14:4510h 45m5942,318
10June 15, 2019 16:30June 15, 2019 20:003h 30m524869

Outage episodes by size in 2019: 47 reached 100+ customers, 1 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 2019, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Florida, LLC20183.8 hrs1.381.9 hrs1.20
Tri-County Electric Coop, Inc (FL)20188.0 hrs3.103.3 hrs2.41

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 2019; 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, 2019, 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/2019/florida/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON