Power Out Map
– 0% of Henry out 0 customers out in Kentucky

Power outage history

Henry County Kentucky

5.4hours

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

85th most of 119 in Kentucky 17% below the national median

Worst outage on record Mar 3, 2023 32% of customers out · 90% back in 47 hours
Hours without power, average customer per year 5.4h / yr State average 7.7 h · national median 6.6 h
Major outages a year 3.4 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 3hours Median across major outages, from the peak
Longest single outage 3.0days Mar 3, 2023, over 1% of customers out
Outage hours on storm days 41% Share falling on days with a NOAA storm report here
Worst year 2023 9.2 hours without power, average customer
Electricity customers 7,357 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 Henry'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

2023 was the worst well-recorded year, at 9.2 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Henry, hours without power per customer

HenryUS median countyKentucky average
0 2 4 6 8 10 12 0.8 ’15 0.9 ’16 2.7 ’17 7.2 ’18 6.0 ’19 2.6 ’20 1.9 ’21 3.6 ’22 9.2 ’23 6.5 ’24 6.7 ’25 KY 7.7 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
Mar 3, 2023 Thunderstorms 2,324 32% 3.0 d 47 h 36k
Apr 2, 2024 Tornadoes 1,606 22% 27 h 36 h 21k
Mar 1, 2017 Tornadoes 2,305 31% 14 h 9.5 h 16k
Mar 14, 2019 No storm report 1,176 16% 28 h 20 h 11k
Dec 11, 2025 Winter storm 1,353 18% 8.5 h 6.0 h 8.6k
Jun 18, 2023 No storm report 1,076 15% 6.5 h 6.0 h 6.9k
Apr 12, 2019 Thunderstorms 1,378 19% 7.8 h 7.0 h 5.6k
May 31, 2018 Tropical Storm Alberto 1,356 18% 8.5 h 6.5 h 5.5k
Sep 27, 2024 Hurricane Helene 744 10% 23 h 21 h 5.3k
Mar 20, 2018 Winter storm 445 6% 18 h 11 h 4.8k
Nov 15, 2018 Ice storm 445 6% 17 h 9.5 h 4.5k
Jul 20, 2018 No storm report 334 5% 18 h – 4.4k

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 +4h 90% by +10h

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 Henry from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • No storm on record 59%
  • Thunderstorms 18%
  • Tornadoes 8.7%
  • Winter storm 7.6%
  • Tropical storm 4.6%
  • Ice storm 1.8%

Who keeps the lights on

Utilities serving Henry

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Kentucky Utilities Co Investor Owned 197 89 1.14 11.9 454k
Louisville Gas & Electric Co Investor Owned 228 94 1.18 12.4 388k
Blue Grass Energy Coop Corp Cooperative 426 255 1.91 12.6 62k
Shelby Energy Coop, Inc Cooperative 245 198 1.86 13.9 17k

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 Kentucky

Where it is darkest

Hours / yr64+

All Kentucky 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 7,357 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 →