massoutage

County annual report · FIPS 12057

2015 Hillsborough County, FL Power Outage Report

In 2015, customers in Hillsborough County, FL went without power for an average of 0.9 hours, a total of 938K customer-hours (Florida average 1.6 hours). That ranks 57th worst of 67 Florida counties and 1799th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.9
998,906 customers
Customer-hours out
938K
Peak customers out
15,634
Outages ≥1,000 out
129
2 of 10,000+ · 556 total
Longest outage
6d 17h
began May 10, 2015
Rank in state
57th/67
1799th of 2,484 US

Compared with FL, the US

Hillsborough County, FL average hours without power per customer compared with state and national averages, 2015Hillsborough County 0.9 hours, Florida average 1.6 hours, US average 2.9 hoursHillsborough CountyHillsborough County0.9hFlorida averageFlorida average1.6hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Hillsborough County, FL customer-hours without power by month, 2015Jan 51K, Feb 78K, Mar 59K, Apr 114K, May 124K, Jun 100K, Jul 130K, Aug 108K, Sep 55K, Oct 36K, Nov 44K, Dec 38K050k100k150k51KJan78KFeb59KMar114KApr124KMay100KJun130KJul108KAug55KSep36KOct44KNov38KDec
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Customer-hours; July was the worst month.

Hillsborough County year over year

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Hillsborough County, FL: average hours without power per customer by year2015: 0.9h; 2016: 1.6h; 2017: 18.7h; 2018: 1.3h, coverage 97%; 2019: 1.2h, coverage 97%; 2020: 1.2h, coverage 97%; 2021: 1.4h, coverage 98%; 2022: 9.2h, coverage 98%; 2023: 1.0h; 2024: 39.4h; 2025: 1.2h0102030400%50%100%0.9h20151.6h201618.7h20171.3h20181.2h20191.2h20201.4h20219.2h20221.0h202339.4h20241.2h2025
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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 Hillsborough County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 8, 2015 09:30May 9, 2015 08:3023h15,63418K
2April 20, 2015 10:45April 21, 2015 18:151d 7h12,87443K
3May 26, 2015 11:30May 27, 2015 22:001d 10h9,11925K
4February 11, 2015 08:45February 11, 2015 21:3012h 45m8,7306,804
5April 17, 2015 10:00April 18, 2015 02:0016h7,7197,162
6June 21, 2015 10:30June 26, 2015 05:454d 19h7,70532K
7February 5, 2015 06:00February 5, 2015 20:1514h 15m7,52912K
8July 3, 2015 10:00July 7, 2015 01:453d 15h6,41248K
9February 26, 2015 08:45February 27, 2015 05:0020h 15m6,1304,082
10December 4, 2015 13:00December 5, 2015 10:0021h6,0274,110

Outage episodes by size in 2015: 267 reached 100+ customers, 129 reached 1,000+ customers, 2 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 Hillsborough County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Florida, LLC20151.6 hrs1.211.6 hrs1.21
Peace River Electric Coop, Inc20152.6 hrs1.752.6 hrs1.75
Tampa Electric Co20151.6 hrs1.321.6 hrs1.32

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 ÷ 998,906 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. Hillsborough County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Hillsborough 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/hillsborough-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON