Power Out Map
– 0% of Carroll out 0 customers out in Ohio

Power outage history

Carroll County Ohio

8.6hours

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

15th most of 88 in Ohio 1.3× the national median

Worst outage on record Mar 26, 2023 29% of customers out · 90% back in 36 hours
Hours without power, average customer per year 8.6h / yr State average 5.5 h · national median 6.6 h
Major outages a year 2.0 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 13hours Median across major outages, from the peak
Longest single outage 3.0days Mar 25, 2023, over 1% of customers out
Outage hours on storm days 66% Share falling on days with a NOAA storm report here
Worst year 2023 14 hours without power, average customer
Electricity customers 19,182 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 Carroll'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 14 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Carroll, hours without power per customer

CarrollUS median countyOhio average
0 5 10 15 20 3.1 ’15 2.7 ’16 4.6 ’17 5.2 ’18 12 ’19 13 ’20 4.0 ’21 3.6 ’22 14 ’23 4.8 ’24 12 ’25 US 6.6 OH 5.5

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 25, 2023 Windstorm 5,504 29% 3.0 d 36 h 169k
Apr 29, 2025 Thunderstorms 6,805 35% 2.9 d 47 h 162k
Jun 10, 2020 Thunderstorms 3,156 16% 42 h 30 h 61k
Jun 29, 2019 Thunderstorms 1,906 10% 38 h 32 h 56k
Nov 15, 2020 Thunderstorms 5,265 27% 31 h 25 h 51k
Apr 1, 2023 No storm report 2,106 11% 2.1 d 46 h 30k
Apr 8, 2020 Thunderstorms 3,415 18% 16 h 13 h 27k
May 1, 2017 Thunderstorms 1,921 10% 22 h 18 h 25k
May 25, 2019 Tornadoes 3,372 18% 13 h 13 h 22k
Apr 14, 2019 No storm report 3,284 17% 18 h 9.2 h 22k
Aug 27, 2020 Thunderstorms 2,014 11% 24 h 22 h 21k
Nov 15, 2018 Winter storm 841 4% 46 h – 18k

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 +6h 90% by +26h

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

  • Thunderstorms 41%
  • No storm on record 34%
  • Windstorm 19%
  • Winter storm 2.8%
  • Tornadoes 2.2%
  • Flooding 0.9%

Who keeps the lights on

Utilities serving Carroll

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Ohio Power Co Investor Owned 221 145 1.22 19.0 1.3M
Ohio Edison Co Investor Owned 244 131 1.51 16.0 961k
Carroll Electric Coop, Inc OH 1,033 561 – 13.9 126k
South Central Power Company Cooperative 298 198 2.83 15.4 118k

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 Ohio

Where it is darkest

Hours / yr64+

All Ohio 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 19,182 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 →