– 0% of Mecosta out 0 customers out in Michigan

Power outage history

Mecosta County Michigan

17hours

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

29th most of 83 in Michigan 2.6× the national median

Worst outage on record Dec 29, 2025 44% of customers out · 90% back in 41 hours
Hours without power, average customer per year 17h / yr State average 13 h · national median 6.6 h
Major outages a year 2.8 Peaks over 10% of customers or 50,000 customers
Typical time to restore 90% 11hours Median across major outages, from the peak
Longest single outage 5.5days Dec 26, 2025, over 1% of customers out
Outage hours on storm days 16% Share falling on days with a NOAA storm report here
Worst year 2021 37 hours without power, average customer
Electricity customers 20,608 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 Mecosta'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

2021 was the worst well-recorded year, at 37 hours for the average customer. Hatched years have a thin record and are left out of the averages.

Mecosta, hours without power per customer

MecostaUS median countyMichigan average
0 10 20 30 40 50 10 ’15 5.5 ’16 4.4 ’17 12 ’18 23 ’19 9.2 ’20 37 ’21 8.5 ’22 8.1 ’23 14 ’24 27 ’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
Dec 26, 2025 No storm report 9,156 44% 5.5 d 41 h 470k
Aug 10, 2021 No storm report 8,976 44% 4.8 d 12 h 328k
Dec 1, 2019 No storm report 6,264 30% 2.5 d 2.0 d 187k
Jul 20, 2019 No storm report 5,600 27% 2.9 d 2.6 d 182k
Dec 24, 2015 No storm report 3,123 15% 3.5 d 3.1 d 141k
Dec 16, 2021 No storm report 5,743 28% 2.5 d 47 h 126k
Aug 28, 2018 Thunderstorms 4,551 22% 2.4 d 33 h 101k
Aug 24, 2021 Thunderstorms 5,333 26% 2.0 d 35 h 94k
Aug 27, 2024 Thunderstorms 4,210 20% 42 h 29 h 74k
Mar 24, 2016 Winter storm 3,190 15% 31 h 16 h 58k
Mar 25, 2023 No storm report 6,175 30% 28 h 17 h 58k
Dec 11, 2021 No storm report 2,786 14% 36 h 30 h 58k

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 +18h 90% by +40h

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

  • No storm on record 84%
  • Thunderstorms 14%
  • Winter storm 1.5%
  • Ice storm 0.5%

Who keeps the lights on

Utilities serving Mecosta

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
Tri-County Electric Coop (MI) Cooperative 1,153 119 1.82 18.3 23k
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 20,608 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 →