massoutage

County annual report · FIPS 12065

2017 Jefferson County, FL Power Outage Report

In 2017, customers in Jefferson County, FL went without power for an average of 107.9 hours, a total of 786K customer-hours (Florida average 49.3 hours). That ranks 3rd worst of 67 Florida counties and 12th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
107.9
7,283 customers
Customer-hours out
786K
Peak customers out
7,799
Outages ≥1,000 out
8
0 of 10,000+ · 553 total
Longest outage
7d 10h
began September 10, 2017
Rank in state
3rd/67
12th of 2,786 US

Compared with FL, the US and 2016

Jefferson County, FL average hours without power per customer compared with state and national averages, 2017Jefferson County 107.9 hours, Florida average 49.3 hours, US average 7.4 hours, Jefferson County, 2016 43.0 hoursJefferson CountyJefferson County107.9hFlorida averageFlorida average49.3hUS averageUS average7.4hJefferson County, 2016Jefferson County, 20…43.0h
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Average hours without power per customer in 2017; last bar is this county in 2016.

Month by month

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Jefferson County, FL customer-hours without power by month, 2017Jan 31K, Feb 639, Mar 799, Apr 5,411, May 7,080, Jun 5,448, Jul 8,539, Aug 10K, Sep 712K, Oct 2,915, Nov 229, Dec 7280200k400k600k800k31KJan639Feb799Mar5,411Apr7,080May5,448Jun8,539Jul10KAug712KSep2,915Oct229Nov728Dec
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Customer-hours; September 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, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 10, 2017 13:45September 17, 2017 23:457d 10h7,799711K
2August 31, 2017 18:00September 1, 2017 02:158h 15m3,9981,877
3January 22, 2017 06:45January 24, 2017 06:151d 23h3,46831K
4July 12, 2017 17:15July 12, 2017 18:301h 15m1,8112,264
5June 7, 2017 05:45June 7, 2017 10:154h 30m1,8021,809
6August 26, 2017 03:15August 26, 2017 16:1513h1,2164,443
7May 8, 2017 13:00May 8, 2017 16:303h 30m1,1861,791
8April 26, 2017 18:45April 26, 2017 19:0015m1,032258
9June 15, 2017 12:15June 15, 2017 21:309h 15m734640
10April 3, 2017 20:30April 4, 2017 17:0020h 30m7322,813

Outage episodes by size in 2017: 61 reached 100+ customers, 8 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 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Florida, LLC20171.7 hrs1.311.6 hrs1.25
Tri-County Electric Coop, Inc (FL)201745.3 hrs4.222.6 hrs1.96

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 2017; 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, 2017, 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/2017/florida/jefferson-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON