Power Out Map
– 0% of Foster out 0 customers out in North Dakota

Power outage history

Foster County North Dakota

The outage record here is too thin for a reliable yearly average. Raw events are listed below.

Worst outage on record Dec 28, 2023 83% of customers out · 90% back in 3.0 hours
Hours without power, average customer per year –h / yr State average 2.1 h · national median 6.6 h
Major outages a year – 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 34hours Jun 21, 2025, over 1% of customers out
Outage hours on storm days 84% Share falling on days with a NOAA storm report here
Worst year –
Electricity customers 1,325 ORNL customer model · 0 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 Foster'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

Foster, hours without power per customer

FosterUS median countyNorth Dakota average
0 5 10 15 20 ’20 ’21 ’22 ’23 ’24 ’25 US 6.6 ND 2.1

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
Dec 27, 2023 Ice storm 1,098 83% 31 h 3.0 h 32k
Jun 7, 2023 No storm report 1,146 86% 1.8 h 48 min 1.9k
Jun 20, 2025 Thunderstorms 659 50% 3.0 h 2.0 h 1.8k
Jun 21, 2025 Thunderstorms 61 5% 34 h – 1.7k
Aug 8, 2025 Thunderstorms 492 37% 6.2 h 2.5 h 1.4k
Jan 4, 2023 No storm report 1,148 87% 1.2 h 7.0 h 1.3k
Sep 21, 2025 No storm report 350 26% 3.0 h 3.0 h 875
Jul 9, 2025 No storm report 491 37% 1.8 h 1.8 h 859
Jan 4, 2023 No storm report 645 49% 1.2 h 1.0 h 654
May 31, 2023 No storm report 49 4% 6.2 h – 306
Sep 23, 2023 No storm report 166 13% 5.0 h 5.0 h 163
Jul 16, 2025 No storm report 192 14% 48 min 48 min 144

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 +2h

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

  • Ice storm 73%
  • No storm on record 16%
  • Thunderstorms 11%

Who keeps the lights on

Utilities serving Foster

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Otter Tail Power Co Investor Owned 575 132 2.03 11.1 45k
Northern Plains Electric Coop Cooperative 371 188 1.43 10.9 10k
WAPA-- Western Area Power Administration Federal – – – – –

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 North Dakota

Where it is darkest

Hours / yr64+

All North Dakota 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 1,325 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 →