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

Power outage history

Grant County North Dakota

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

Worst outage on record Jun 22, 2024 18% of customers out · 90% back in 30 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% 1hours Median across major outages, from the peak
Longest single outage 18hours Jun 22, 2024, over 1% of customers out
Outage hours on storm days 21% Share falling on days with a NOAA storm report here
Worst year –
Electricity customers 1,221 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 Grant'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

Grant, hours without power per customer

GrantUS median countyNorth Dakota average
0 2 4 6 8 ’19 ’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
Jun 22, 2024 No storm report 225 18% 18 h 30 h 3.1k
May 21, 2020 No storm report 441 36% 6.2 h 6.0 h 2.7k
Jun 20, 2025 Thunderstorms 831 68% 2.8 h 7.0 h 1.2k
Jun 23, 2024 No storm report 224 18% 4.5 h 1.8 h 993
May 29, 2024 No storm report 184 15% 2.2 h 2.2 h 383
Aug 4, 2022 No storm report 831 68% 30 min 30 min 355
Mar 21, 2025 No storm report 193 16% 1.2 h 1.2 h 241
Dec 11, 2025 No storm report 235 19% 1.0 h 1.0 h 235
Apr 24, 2022 Winter storm 256 21% 3.8 h 2.0 h 212
Jan 14, 2021 Windstorm 200 16% 1.0 h 1.0 h 199
Jun 27, 2019 No storm report 188 15% 3.2 h 3.5 h 194
Mar 31, 2025 No storm report 189 15% 1.0 h 1.0 h 189

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

  • No storm on record 80%
  • Thunderstorms 14%
  • Windstorm 4.1%
  • Winter storm 2.7%

Who keeps the lights on

Utilities serving Grant

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
Mor-Gran-Sou Electric Coop Inc ND – – – 13.4 92k
Montana-Dakota Utilities Co Investor Owned 95 65 0.81 11.1 80k
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

  • Stark 0.5 h
  • Grant (this county) – h

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 1,221 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 →