Power Out Map
– 0% of Hillsborough out 0 customers out in Florida

Power outage history

Hillsborough County Florida

6.6hours

without power for the average customer in a typical year, 2018–2025

42nd most of 67 in Florida close to the national median

Worst outage on record Hurricane Milton · Oct 10, 2024 52% of customers out · 90% back in 5.2 hours
Hours without power, average customer per year 6.6h / yr State average 7.8 h · national median 6.6 h
Major outages a year 1.4 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 2hours Median across major outages, from the peak
Longest single outage 5.9days Hurricane Irma, over 1% of customers out
Outage hours on storm days 69% Share falling on days with a NOAA storm report here
Worst year 2024 37 hours without power, average customer
Electricity customers 998,906 ORNL customer model · 8 well-covered years

Every day since 2015

Eleven years, one night at a time

Each cell is a day. The brighter it is, the larger the share of Hillsborough's customers who were without power at that day's worst moment.

20152016201720182019202020212022202320242025
0%100% of customers out

Year by year

Hours in the dark, per customer

2024 was the worst well-recorded year, at 37 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Hillsborough, hours without power per customer

HillsboroughUS median countyFlorida average
0 10 20 30 40 50 0.9 ’15 1.5 ’16 19 ’17 1.3 ’18 1.2 ’19 1.1 ’20 1.4 ’21 8.7 ’22 1.0 ’23 37 ’24 1.1 ’25 FL 7.8 US 6.6

The record

The biggest outages since 2015

Ranked by customer-hours lost: customers out multiplied by how long they stayed out. Times are local.

Began Storm Peak out Share Lasted 90% restored Customer-hours
Oct 10, 2024 Hurricane Milton 520,308 52% 42 h 5.2 h 20M
Sep 10, 2017 Hurricane Irma 257,105 26% 5.9 d 3.7 d 18M
Oct 12, 2024 No storm report 345,794 35% 17 h 4.2 h 4.6M
Sep 29, 2022 Hurricane Ian 157,513 16% 3.0 d 8.5 h 4.3M
Oct 12, 2024 No storm report 420,870 42% 10 h 10 h 4.1M
Sep 28, 2022 Hurricane Ian 217,144 22% 15 h 30 min 2.9M
Oct 13, 2024 No storm report 216,096 22% 20 h 1.2 h 2.6M
Oct 15, 2024 No storm report 92,478 9% 43 h 12 min 1.8M
Oct 9, 2024 Hurricane Milton 416,117 42% 8.8 h 12 min 939k
Sep 27, 2024 Hurricane Helene 93,657 9% 7.2 h 2.5 h 438k
Sep 26, 2024 Hurricane Helene 92,108 9% 8.5 h 12 min 434k
Sep 27, 2024 Hurricane Helene 33,617 3% 22 h 30 min 385k

After the peak

How fast the lights come back

Each line is one major outage, from its peak. The amber line is the typical path.

0% 25% 50% 75% 100% peak+24h+48h+72h+96h half back by +22h 90% by +48h

When it happens

The outage clock

Customer-hours out by month (rings, January innermost) and local hour, 2018–2025.

00061218 Jan inside

What was happening

Weather behind the outages

Each outage is matched to NOAA storm reports for Hillsborough from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Tropical storm 69%
  • No storm on record 31%

Who keeps the lights on

Utilities serving Hillsborough

As each utility reports to the Energy Information Administration for its whole Florida territory, not this county alone. Outage minutes include major storm days.

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Duke Energy Florida, LLC Investor Owned 87 82 0.97 18.4 1.8M
Tampa Electric Co Investor Owned 112 79 1.85 17.3 769k
Peace River Electric Coop, Inc Cooperative 155 155 1.62 12.8 62k

EIA Form 861, latest year each utility reported. Outage minutes are SAIDI, the yearly minutes the average customer goes without power; outages a year are SAIFI.

Next door

Neighbouring counties

Across Florida

Where it is darkest

Hours / yr64+

All Florida counties →

About these numbers

Notes

Outages come from the EAGLE-I record of utility outage maps collected every 15 minutes by Oak Ridge National Laboratory. Hours without power are customer-hours divided by the county's 998,906 electricity customers. Averages use well-covered years from 2018. Outages shorter than 15 minutes, and utilities that publish no outage map, are not in the record, so these figures understate the total. How every number is made →