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

Power outage history

Wilson County Tennessee

2.6hours

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

57th most of 73 in Tennessee 60% below the national median

Worst outage on record Mar 3, 2020 53% of customers out · 90% back in 38 hours
Hours without power, average customer per year 2.6h / yr State average 5.8 h · national median 6.6 h
Major outages a year 0.8 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 4hours Median across major outages, from the peak
Longest single outage 3.6days Mar 3, 2020, over 1% of customers out
Outage hours on storm days 75% Share falling on days with a NOAA storm report here
Worst year 2020 11 hours without power, average customer
Electricity customers 67,214 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 Wilson'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 11 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Wilson, hours without power per customer

WilsonUS median countyTennessee average
0 5 10 15 0.5 ’15 1.4 ’16 0.6 ’17 1.0 ’18 1.1 ’19 11 ’20 1.3 ’21 1.5 ’22 2.3 ’23 1.3 ’24 1.3 ’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, 2020 Tornadoes 35,831 53% 3.6 d 38 h 467k
May 3, 2020 Thunderstorms 23,545 35% 36 h 12 min 165k
Dec 11, 2021 Tornadoes 7,628 11% 9.8 h 7.0 h 37k
Jul 11, 2020 No storm report 3,303 5% 21 h – 36k
Jun 30, 2023 Thunderstorms 8,240 12% 10 h 7.5 h 25k
Mar 3, 2023 Windstorm 5,289 8% 8.8 h 7.8 h 22k
Apr 13, 2022 Thunderstorms 6,256 9% 4.8 h 4.0 h 19k
May 8, 2024 Thunderstorms 3,969 6% 8.0 h 8.2 h 17k
Apr 5, 2025 Thunderstorms 4,316 6% 5.8 h 7.5 h 12k
Mar 1, 2017 Tornadoes 3,957 6% 4.2 h 4.5 h 10k
May 11, 2016 Thunderstorms 2,628 4% 5.2 h – 10k
Dec 9, 2023 No storm report 6,995 10% 3.0 h 1.5 h 9.4k

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 +2h 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 Wilson from twelve hours before it began to its peak. Matching shows coincidence, not proof of cause.

  • Tornadoes 46%
  • Thunderstorms 26%
  • No storm on record 25%
  • Windstorm 2.2%

Who keeps the lights on

Utilities serving Wilson

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
Middle Tennessee E M C Cooperative 50 48 0.93 12.5 312k

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 67,214 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 →