Power Out Map
– 0% of Otsego out 0 customers out in Michigan

Power outage history

Otsego County Michigan

32hours

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

9th most of 83 in Michigan 4.8× the national median

Worst outage on record Mar 30, 2025 93% of customers out · 90% back in 14.3 days
Hours without power, average customer per year 32h / yr State average 13 h · national median 6.6 h
Major outages a year 3.4 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 5hours Median across major outages, from the peak
Longest single outage 18.5days Mar 29, 2025, over 1% of customers out
Outage hours on storm days 85% Share falling on days with a NOAA storm report here
Worst year 2025 8.2 days without power, average customer
Electricity customers 19,174 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 Otsego'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 8.2 days for the average customer. Hatched years have a thin record and are left out of the averages.

Otsego, hours without power per customer

OtsegoUS median countyMichigan average
0 10 20 30 40 50 8.8 ’15 2.5 ’16 3.1 ’17 5.7 ’18 5.2 ’19 3.8 ’20 13 ’21 18 ’22 5.6 ’23 4.8 ’24 197 ’25 MI 13 US 6.6

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 29, 2025 Ice storm 17,912 93% 18.5 d 14.3 d 3.6M
May 20, 2022 Thunderstorms 6,591 34% 38 h 34 h 172k
Dec 16, 2021 No storm report 5,722 30% 2.7 d 26 h 141k
Dec 24, 2015 Windstorm 2,809 15% 2.8 d 2.1 d 71k
Nov 5, 2022 No storm report 3,574 19% 45 h 20 h 64k
Aug 2, 2015 Thunderstorms 5,112 27% 34 h 22 h 53k
Aug 28, 2018 Thunderstorms 3,024 16% 40 h 34 h 44k
Feb 24, 2019 Winter storm 1,990 10% 29 h 27 h 34k
Jun 16, 2022 No storm report 2,542 13% 29 h 19 h 32k
Feb 6, 2025 No storm report 2,909 15% 13 h 11 h 23k
Sep 21, 2018 No storm report 2,310 12% 12 h 14 h 19k
Apr 2, 2024 No storm report 1,316 7% 22 h 20 h 16k

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 +10h 90% by +22h

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

  • Ice storm 78%
  • No storm on record 16%
  • Thunderstorms 5.3%
  • Winter storm 1.5%

Who keeps the lights on

Utilities serving Otsego

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

Utility Type Outage min / yr Excl. major storms Outages / yr Residential ¢/kWh Customers
Consumers Energy Co Investor Owned 820 164 1.40 20.7 1.7M
Great Lakes Energy Coop Cooperative 4,401 315 4.09 20.3 123k
Presque Isle Elec & Gas Coop Cooperative 9,074 307 2.91 23.9 33k
Wolverine Power Supply Coop Cooperative – – – – –

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 Michigan

Where it is darkest

Hours / yr64+

All Michigan 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 19,174 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 →