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

Power outage history

Carroll County Indiana

2.8hours

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

61st most of 90 in Indiana 58% below the national median

Worst outage on record Aug 11, 2020 28% of customers out · 90% back in 18 hours
Hours without power, average customer per year 2.8h / yr State average 4.6 h · national median 6.6 h
Major outages a year 0.9 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 7hours Median across major outages, from the peak
Longest single outage 28hours Aug 10, 2020, over 1% of customers out
Outage hours on storm days 39% Share falling on days with a NOAA storm report here
Worst year 2020 6.9 hours without power, average customer
Electricity customers 9,746 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

2020 was the worst well-recorded year, at 6.9 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 countyIndiana average
0 2 4 6 8 2.7 ’15 3.3 ’16 2.6 ’17 2.6 ’18 2.1 ’19 6.9 ’20 2.8 ’21 2.2 ’22 1.6 ’23 1.2 ’24 2.8 ’25 US 6.6 IN 4.6

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
Aug 10, 2020 Thunderstorms 2,767 28% 28 h 18 h 32k
Jun 23, 2016 Thunderstorms 1,913 20% 24 h 17 h 14k
Dec 28, 2015 No storm report 1,000 10% 16 h 6.5 h 10k
Nov 15, 2020 No storm report 1,948 20% 7.8 h 7.0 h 10.0k
Mar 19, 2025 Thunderstorms 1,324 14% 18 h 16 h 9.7k
Dec 11, 2021 Thunderstorms 776 8% 17 h 4.5 h 8.6k
Mar 15, 2021 No storm report 1,189 12% 17 h 13 h 7.4k
Aug 24, 2016 Tornadoes 219 2% 28 h – 5.9k
Nov 27, 2019 Windstorm 917 9% 10 h 7.5 h 5.2k
Jul 29, 2023 No storm report 643 7% 9.0 h 3.2 h 4.7k
May 15, 2023 No storm report 809 8% 5.5 h 13 h 4.3k
Oct 4, 2017 No storm report 468 5% 12 h – 4.1k

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 +8h

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.

  • No storm on record 61%
  • Thunderstorms 36%
  • Windstorm 2.9%

Who keeps the lights on

Utilities serving Carroll

As each utility reports to the Energy Information Administration for its whole Indiana 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 Indiana, LLC Investor Owned 267 108 1.26 15.0 809k
Northern Indiana Pub Serv Co Investor Owned 532 178 1.32 22.1 434k
Tipmont Rural Elec Member Corp Cooperative 216 75 1.80 16.4 30k
Carroll-White REMC Cooperative 839 553 – 15.4 15k

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 Indiana

Where it is darkest

Hours / yr64+

All Indiana 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 9,746 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 →