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

Power outage history

Macon County Tennessee

6.6hours

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

24th most of 73 in Tennessee close to the national median

Worst outage on record Jan 1, 2022 54% of customers out · 90% back in 4.2 hours
Hours without power, average customer per year 6.6h / yr State average 5.8 h · national median 6.6 h
Major outages a year 6.8 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 1hours Median across major outages, from the peak
Longest single outage 2.3days Apr 1, 2018, over 1% of customers out
Outage hours on storm days 22% Share falling on days with a NOAA storm report here
Worst year 2022 10.0 hours without power, average customer
Electricity customers 13,771 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 Macon'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

2022 was the worst well-recorded year, at 10.0 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Macon, hours without power per customer

MaconUS median countyTennessee average
0 2 4 6 8 10 12 2.8 ’15 7.3 ’16 5.8 ’17 7.5 ’18 7.7 ’19 2.4 ’20 5.2 ’21 10.0 ’22 7.2 ’23 5.6 ’24 7.0 ’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
Jan 1, 2022 No storm report 7,381 54% 8.2 h 4.2 h 40k
Jun 21, 2019 Tornadoes 3,073 22% 36 h 25 h 40k
Apr 1, 2018 No storm report 610 4% 2.3 d – 33k
Mar 3, 2023 Windstorm 4,785 35% 30 h 20 h 33k
Jul 8, 2016 Thunderstorms 3,500 25% 16 h 4.2 h 21k
Oct 31, 2021 No storm report 9,816 71% 2.0 h 2.0 h 20k
Mar 23, 2019 No storm report 7,146 52% 2.5 h 7.2 h 18k
Mar 4, 2022 No storm report 4,189 30% 4.5 h 4.0 h 17k
Jun 23, 2025 No storm report 7,401 54% 4.8 h 8.8 h 16k
Sep 29, 2018 No storm report 7,022 51% 2.2 h 2.2 h 16k
Sep 10, 2016 No storm report 443 3% 39 h – 15k
May 27, 2017 No storm report 2,470 18% 15 h 9.8 h 15k

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 +6h

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

  • No storm on record 78%
  • Tornadoes 6.7%
  • Thunderstorms 5.7%
  • Windstorm 5.0%
  • Winter storm 1.7%
  • Heat 1.3%
  • Flooding 1.1%
  • Tropical storm 0.6%

Who keeps the lights on

Utilities serving Macon

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
Upper Cumberland E M C Cooperative 344 255 – 13.7 46k
Tri-County Elec Member Corp (TN) Cooperative 528 239 3.91 12.9 25k

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 13,771 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 →