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

Power outage history

Alcona County Michigan

72hours

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

1st most of 83 in Michigan 11× the national median

Worst outage on record Mar 29, 2025 100% of customers out · 90% back in 6.6 days
Hours without power, average customer per year 72h / yr State average 13 h · national median 6.6 h
Major outages a year 13.4 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 19.3days Mar 29, 2025, over 1% of customers out
Outage hours on storm days 45% Share falling on days with a NOAA storm report here
Worst year 2025 6.2 days without power, average customer
Electricity customers 6,050 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 Alcona'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 6.2 days for the average customer. Hatched years have a thin record and are left out of the averages.

Alcona, hours without power per customer

AlconaUS median countyMichigan average
0 50 100 150 200 98 ’15 9.5 ’16 36 ’17 19 ’18 27 ’19 75 ’20 114 ’21 90 ’22 20 ’23 81 ’24 150 ’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 6,050 100% 19.3 d 6.6 d 646k
Dec 16, 2021 Windstorm 6,050 100% 4.2 d 3.2 d 399k
Nov 5, 2022 No storm report 6,050 100% 3.9 d 20 h 346k
Dec 24, 2015 No storm report 5,149 85% 4.3 d 2.4 d 294k
Dec 12, 2020 Winter storm 6,050 100% 3.3 d 2.0 d 212k
Apr 29, 2025 No storm report 6,050 100% 33 h 30 h 148k
Jan 12, 2024 Winter storm 5,172 85% 3.1 d 27 h 143k
Aug 2, 2015 Thunderstorms 4,758 79% 2.1 d 2.1 d 139k
Jul 19, 2020 No storm report 2,920 48% 2.4 d 2.0 d 94k
Jan 9, 2024 Winter storm 4,045 67% 2.5 d 31 h 79k
Jun 16, 2022 No storm report 2,568 42% 2.0 d 40 h 68k
Apr 12, 2024 No storm report 3,066 51% 2.1 d 26 h 55k

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 +26h 90% by +48h

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

  • No storm on record 55%
  • Ice storm 19%
  • Winter storm 13%
  • Windstorm 12%
  • Thunderstorms 0.6%

Who keeps the lights on

Utilities serving Alcona

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
Presque Isle Elec & Gas Coop Cooperative 9,074 307 2.91 23.9 33k
Alpena Power Co Investor Owned 2,994 63 2.50 18.7 14k

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 6,050 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 →