Power Out Map
– 0% of Big Stone out 0 customers out in Minnesota

Power outage history

Big Stone County Minnesota

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

Worst outage on record Apr 2, 2025 15% of customers out · 90% back in 13 hours
Hours without power, average customer per year –h / yr State average 2.9 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 17hours Mar 23, 2021, over 1% of customers out
Outage hours on storm days 55% Share falling on days with a NOAA storm report here
Worst year –
Electricity customers 1,766 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 Big Stone'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

Big Stone, hours without power per customer

Big StoneUS median countyMinnesota average
0 2 4 6 8 ’20 ’21 ’22 ’23 ’24 ’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
Apr 2, 2025 Winter storm 269 15% 14 h 13 h 3.6k
Feb 14, 2023 Winter storm 279 16% 13 h 12 h 3.4k
Nov 2, 2025 No storm report 386 22% 5.5 h 5.5 h 2.1k
Jan 15, 2021 Winter storm 387 22% 4.5 h 1.8 h 1.4k
Sep 22, 2022 No storm report 183 10% 6.0 h 6.0 h 1.1k
Dec 15, 2024 No storm report 385 22% 3.5 h 1.8 h 794
May 12, 2022 Thunderstorms 237 13% 6.8 h 2.2 h 703
Mar 23, 2021 No storm report 55 3% 17 h – 687
Jun 20, 2022 Thunderstorms 56 3% 11 h – 613
May 6, 2024 No storm report 174 10% 3.2 h 3.2 h 566
Sep 19, 2024 No storm report 161 9% 3.2 h 3.2 h 523
Jun 8, 2020 No storm report 336 19% 1.2 h 1.2 h 420

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

  • Winter storm 48%
  • No storm on record 45%
  • Thunderstorms 7.3%

Who keeps the lights on

Utilities serving Big Stone

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
City of Ortonville MN 15 14 0.17 – 13k
Agralite Electric Coop Cooperative 255 73 1.99 13.7 4.3k

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 1,766 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 →