– 0% of Grant out 0 customers out in Minnesota

Power outage history

Grant County Minnesota

5.0hours

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

23% below the national median

Worst outage on record May 12, 2022 61% of customers out · 90% back in 38 hours
Hours without power, average customer per year 5.0h / yr State average 2.9 h · national median 6.6 h
Major outages a year 21.0 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 3hours Median across major outages, from the peak
Longest single outage 38hours May 12, 2022, over 1% of customers out
Outage hours on storm days 76% Share falling on days with a NOAA storm report here
Worst year 2025 5.0 hours without power, average customer
Electricity customers 3,371 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 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

2025 was the worst well-recorded year, at 5.0 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Grant, hours without power per customer

GrantUS median countyMinnesota average
0 5 10 15 20 ’15 ’16 ’17 ’18 ’19 ’20 ’21 ’22 ’23 ’24 5.0 ’25 US 6.6 MN 2.9

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 12, 2022 Thunderstorms 2,041 61% 38 h 38 h 31k
Jun 20, 2022 Thunderstorms 1,502 45% 15 h 10 h 7.1k
Nov 25, 2025 Winter storm 3,371 100% 9.0 h 1.2 h 6.3k
May 30, 2022 Thunderstorms 1,394 41% 7.5 h 7.5 h 4.9k
Jun 2, 2025 Thunderstorms 1,185 35% 3.0 h 2.8 h 2.4k
Jul 8, 2020 Thunderstorms 975 29% 4.0 h 2.0 h 2.3k
Jan 20, 2025 Winter storm 431 13% 4.8 h 4.8 h 2.0k
Jun 19, 2025 No storm report 1,014 30% 12 h 12 min 1.9k
Aug 27, 2020 No storm report 617 18% 3.2 h 3.2 h 1.6k
Aug 27, 2020 No storm report 617 18% 1.8 h 8.5 h 1.1k
Sep 10, 2020 No storm report 617 18% 1.5 h 1.5 h 926
Apr 4, 2023 No storm report 507 15% 3.5 h 1.5 h 908

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

  • Thunderstorms 65%
  • No storm on record 24%
  • Winter storm 11%

Who keeps the lights on

Utilities serving Grant

As each utility reports to the Energy Information Administration for its whole Minnesota 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 557 136 1.74 11.3 50k
Traverse Electric Coop, Inc MN – – – 11.6 38k
Lake Region Electric Cooperative Cooperative 227 121 1.55 13.6 27k
Runestone Electric Assn Cooperative 135 116 1.57 14.8 14k
City of Elbow Lake MN – – – – 8.3k
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 Minnesota

Where it is darkest

Hours / yr64+

All Minnesota 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 3,371 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 →