massoutage

County annual report · FIPS 12057

2018 Hillsborough County, FL Power Outage Report

In 2018, customers in Hillsborough County, FL went without power for an average of 1.3 hours, a total of 1.3M customer-hours (Florida average 5.5 hours). That ranks 61st worst of 67 Florida counties and 2181st of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
1.3
998,906 customers
Customer-hours out
1.3M
Peak customers out
23,752
Outages ≥1,000 out
116
6 of 10,000+ · 491 total
Longest outage
14d 6h
began May 31, 2018
Rank in state
61st/67
2181st of 2,798 US

Compared with FL, the US and 2017

Hillsborough County, FL average hours without power per customer compared with state and national averages, 2018Hillsborough County 1.3 hours, Florida average 5.5 hours, US average 5.6 hours, Hillsborough County, 2017 18.7 hoursHillsborough CountyHillsborough County1.3hFlorida averageFlorida average5.5hUS averageUS average5.6hHillsborough County, 2017Hillsborough County,…18.7h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Hillsborough County, FL customer-hours without power by month, 2018Jan 55K, Feb 30K, Mar 60K, Apr 105K, May 128K, Jun 123K, Jul 193K, Aug 195K, Sep 106K, Oct 67K, Nov 90K, Dec 161K050k100k150k200k55KJan30KFeb60KMar105KApr128KMay123KJun193KJul195KAug106KSep67KOct90KNov161KDec
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Customer-hours; August 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, 2018

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1October 9, 2018 07:00October 12, 2018 07:453d23,75229K
2November 2, 2018 18:30November 2, 2018 20:001h 30m20,4285,456
3August 2, 2018 11:00August 15, 2018 07:1512d 20h13,96772K
4December 20, 2018 09:30December 23, 2018 04:152d 18h11,86284K
5April 10, 2018 11:45April 13, 2018 10:152d 22h11,01730K
6July 1, 2018 10:30July 9, 2018 09:157d 22h10,73986K
7June 23, 2018 20:15June 29, 2018 07:305d 11h9,25147K
8March 20, 2018 10:30March 21, 2018 08:3022h9,21413K
9November 3, 2018 04:00November 5, 2018 05:152d 1h8,72934K
10September 8, 2018 03:00September 14, 2018 21:456d 18h8,19938K

Outage episodes by size in 2018: 239 reached 100+ customers, 116 reached 1,000+ customers, 6 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 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Duke Energy Florida, LLC20183.8 hrs1.381.9 hrs1.20
Peace River Electric Coop, Inc20184.0 hrs2.643.3 hrs2.41
Tampa Electric Co20181.6 hrs1.1982 min1.15

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 2018; 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, 2018, 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/2018/florida/hillsborough-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON