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

Power outage history

Cheatham County Tennessee

7.4hours

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

19th most of 73 in Tennessee close to the national median

Worst outage on record Mar 3, 2023 47% of customers out · 90% back in 30 hours
Hours without power, average customer per year 7.4h / yr State average 5.8 h · national median 6.6 h
Major outages a year 5.5 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 3.9days Mar 3, 2023, over 1% of customers out
Outage hours on storm days 55% Share falling on days with a NOAA storm report here
Worst year 2023 18 hours without power, average customer
Electricity customers 15,430 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 Cheatham'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 18 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Cheatham, hours without power per customer

CheathamUS median countyTennessee average
0 5 10 15 20 2.3 ’15 3.5 ’16 3.3 ’17 4.1 ’18 9.1 ’19 9.2 ’20 4.6 ’21 4.9 ’22 18 ’23 3.0 ’24 6.3 ’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
Mar 3, 2023 Windstorm 7,239 47% 3.9 d 30 h 164k
Jun 21, 2019 Thunderstorms 8,287 54% 43 h 17 h 67k
Mar 3, 2020 No storm report 9,676 63% 13 h 12 min 48k
May 3, 2020 Thunderstorms 4,524 29% 18 h 1.0 h 25k
Jun 30, 2023 Heat 2,461 16% 24 h 21 h 22k
Dec 9, 2023 Tornadoes 7,053 46% 15 h 5.5 h 19k
May 16, 2025 No storm report 2,269 15% 14 h 11 h 16k
Dec 9, 2018 Winter storm 2,219 14% 17 h 11 h 15k
May 4, 2020 No storm report 760 5% 38 h – 14k
Jan 1, 2022 Thunderstorms 2,216 14% 7.2 h 5.8 h 12k
Apr 5, 2025 Thunderstorms 1,661 11% 19 h 18 h 11k
Jun 18, 2025 No storm report 2,172 14% 17 h 7.5 h 10k

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 +2h 90% by +12h

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

  • No storm on record 45%
  • Windstorm 23%
  • Thunderstorms 22%
  • Tornadoes 3.0%
  • Heat 3.0%
  • Winter storm 2.3%
  • Flooding 1.4%
  • Tropical storm 1.1%

Who keeps the lights on

Utilities serving Cheatham

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
Nashville Electric Service Municipal 0 83 0.00 14.0 425k
Cumberland Elec Member Corp Cooperative 221 171 2.67 13.8 102k
City of Dickson Municipal 391 202 2.46 13.0 31k

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 15,430 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 →