Power Out Map
– 0% of Sheridan out 0 customers out in Nebraska

Power outage history

Sheridan County Nebraska

1.3hours

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

80% below the national median

Worst outage on record May 19, 2017 85% of customers out · 90% back in 6.2 hours
Hours without power, average customer per year 1.3h / yr State average 4.8 h · national median 6.6 h
Major outages a year 12.0 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 12hours Nov 7, 2022, over 1% of customers out
Outage hours on storm days 33% Share falling on days with a NOAA storm report here
Worst year 2018 1.3 hours without power, average customer
Electricity customers 3,062 ORNL customer model · 1 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 Sheridan'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

2018 was the worst well-recorded year, at 1.3 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Sheridan, hours without power per customer

SheridanUS median countyNebraska average
0 2 4 6 8 10 1.4 ’15 2.1 ’16 7.9 ’17 1.3 ’18 ’19 ’20 ’21 ’22 ’23 ’24 ’25 US 6.6 NE 4.8

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
May 19, 2017 No storm report 2,590 85% 7.2 h 6.2 h 7.3k
Aug 27, 2017 No storm report 1,119 37% 11 h 3.8 h 4.1k
May 28, 2017 No storm report 856 28% 4.2 h 13 h 3.5k
Dec 6, 2017 No storm report 397 13% 7.5 h 2.2 h 2.4k
May 3, 2021 No storm report 540 18% 4.2 h 1.8 h 1.9k
Apr 14, 2018 Winter storm 144 5% 12 h – 1.7k
Jun 28, 2017 No storm report 398 13% 3.8 h 8.8 h 1.5k
Dec 1, 2016 No storm report 703 23% 2.0 h 2.0 h 1.4k
Nov 7, 2022 Windstorm 196 6% 12 h 7.2 h 1.3k
Dec 25, 2016 No storm report 852 28% 1.5 h 1.8 h 1.3k
Nov 26, 2015 No storm report 263 9% 4.8 h 2.5 h 1.2k
Jan 31, 2017 No storm report 643 21% 2.2 h 3.5 h 1.2k

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 +4h

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

  • No storm on record 67%
  • Winter storm 17%
  • Windstorm 8.9%
  • Thunderstorms 6.6%

Who keeps the lights on

Utilities serving Sheridan

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Nebraska Public Power District Political Subdivision 195 77 0.90 10.9 74k
Panhandle Rural El Member Assn NE – – – 14.0 31k
Northwest Rural Pub Pwr Dist NE 419 280 2.42 14.2 26k

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 Nebraska

Where it is darkest

Hours / yr64+

All Nebraska 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 3,062 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 →