Power Out Map
– 0% of Moore out 0 customers out in Tennessee

Power outage history

Moore County Tennessee

7.1hours

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

20th most of 73 in Tennessee close to the national median

Worst outage on record Feb 15, 2021 59% of customers out · 90% back in 42 hours
Hours without power, average customer per year 7.1h / yr State average 5.8 h · national median 6.6 h
Major outages a year 6.6 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 4.1days Feb 15, 2021, over 1% of customers out
Outage hours on storm days 57% Share falling on days with a NOAA storm report here
Worst year 2021 20 hours without power, average customer
Electricity customers 3,269 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 Moore'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

2021 was the worst well-recorded year, at 20 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Moore, hours without power per customer

MooreUS median countyTennessee average
0 5 10 15 20 25 ’15 ’17 3.0 ’18 3.5 ’19 6.7 ’20 20 ’21 6.9 ’22 8.3 ’23 2.1 ’24 6.7 ’25 US 6.6 TN 5.8

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
Feb 15, 2021 Ice storm 1,941 59% 4.1 d 42 h 49k
Feb 16, 2015 Ice storm 1,063 33% 2.0 d 21 h 20k
Jul 1, 2023 Thunderstorms 2,383 73% 13 h 10 h 8.7k
Jan 2, 2022 Winter storm 940 29% 19 h 13 h 8.2k
Mar 3, 2023 No storm report 816 25% 32 h 11 h 8.0k
May 3, 2020 Thunderstorms 1,497 46% 22 h 15 h 6.3k
Jul 22, 2021 No storm report 3,194 98% 1.8 h 3.5 h 5.6k
May 6, 2021 No storm report 517 16% 10 h 9.5 h 4.5k
May 6, 2022 No storm report 524 16% 8.2 h 7.5 h 3.3k
Jun 30, 2023 Heat 515 16% 11 h 7.0 h 2.9k
May 26, 2025 Thunderstorms 882 27% 8.8 h 30 min 2.9k
Dec 22, 2022 Winter storm 829 25% 12 h 2.2 h 2.7k

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

  • No storm on record 43%
  • Ice storm 29%
  • Thunderstorms 19%
  • Winter storm 6.5%
  • Heat 1.8%
  • Flooding 1.1%

Who keeps the lights on

Utilities serving Moore

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Duck River Elec Member Corp Cooperative 190 134 2.14 13.6 72k
Tullahoma Board-Public Utils Municipal 74 55 3.04 11.7 9.3k

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 Tennessee

Where it is darkest

Hours / yr64+

All Tennessee 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 3,269 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 →