Power Out Map
– 0% of Bannock out 0 customers out in Idaho

Power outage history

Bannock County Idaho

2.1hours

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

30th most of 35 in Idaho 69% below the national median

Worst outage on record Mar 2, 2024 9% of customers out · 90% back in 25 hours
Hours without power, average customer per year 2.1h / yr State average 3.7 h · national median 6.6 h
Major outages a year 0.6 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 28hours Mar 2, 2024, over 1% of customers out
Outage hours on storm days 41% Share falling on days with a NOAA storm report here
Worst year 2020 3.8 hours without power, average customer
Electricity customers 43,884 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 Bannock'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 3.8 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Bannock, hours without power per customer

BannockUS median countyIdaho average
0 2 4 6 8 ’15 1.0 ’16 1.6 ’17 1.3 ’18 1.2 ’19 3.8 ’20 1.8 ’21 1.6 ’22 1.3 ’23 3.1 ’24 2.5 ’25 US 6.6 ID 3.7

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 2, 2024 Winter storm 3,999 9% 28 h 25 h 59k
Sep 7, 2020 Windstorm 5,362 12% 22 h 20 h 47k
Jan 16, 2020 No storm report 18,317 42% 1.2 h 1.0 h 20k
Jul 11, 2017 No storm report 6,803 16% 2.2 h 2.0 h 13k
Jun 16, 2020 No storm report 3,796 9% 3.5 h 5.8 h 13k
Dec 14, 2021 Windstorm 5,053 12% 3.0 h 2.5 h 12k
Aug 29, 2025 No storm report 8,491 19% 1.5 h 30 min 11k
Oct 26, 2020 No storm report 1,500 3% 6.5 h – 9.7k
Oct 30, 2016 No storm report 3,152 7% 4.2 h 4.2 h 8.6k
Apr 15, 2017 Flooding 2,488 6% 5.2 h 5.2 h 8.2k
Dec 17, 2025 Thunderstorms 2,066 5% 7.2 h – 8.1k
May 13, 2016 No storm report 2,635 6% 3.0 h 3.0 h 7.9k

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

  • No storm on record 59%
  • Winter storm 19%
  • Windstorm 13%
  • Thunderstorms 3.9%
  • Wildfire 2.5%
  • Flooding 1.6%
  • Heat 1.5%

Who keeps the lights on

Utilities serving Bannock

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Idaho Power Co Investor Owned 171 141 1.03 11.8 540k
PacifiCorp Investor Owned 146 146 1.16 13.5 76k

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 Idaho

Where it is darkest

Hours / yr64+

All Idaho 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 43,884 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 →