Alger County Power Outage History
2014–2025 · Michigan
Average — typical outage frequency and duration nationally. How grades are calculated
Outages by year
Outages by month (seasonality)
Worst outage events on record
| Date | Duration | Customers affected | Cause |
|---|---|---|---|
| Aug 25, 2020 | 0 hrs | 5,000 (65%) | Unnamed event |
| May 31, 2020 | 2 hrs | 3,430 (44%) | Unnamed event |
| Oct 18, 2022 | 18 hrs | 3,268 (42%) | High Wind |
| Jun 10, 2020 | 9 hrs | 3,181 (41%) | Tropical Storm Cristobal |
| May 1, 2023 | 3 hrs | 2,746 (35%) | Winter Storm |
Over the 12 years from 2014 to 2025, Alger County recorded 389 distinct power outage events, averaging 2.7 hours per event.
The single worst outage on record in Alger County started August 25, 2020, lasting 0 hours and leaving up to 5,000 customers without power (65% of the county) at its peak.
November has historically been the worst month for outages in Alger County, with 58 events recorded during that month across the dataset.
Based on this history, Alger County earns a Reliability Grade of C, placing it in the 50th percentile nationally for grid reliability (higher percentile = more reliable).
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Similar counties in Michigan
Counties with the closest reliability grade and national percentile to Alger County.
| County | Grade | National percentile |
|---|---|---|
| Marquette County | C | 49th |
| Isabella County | C | 49th |
| Ingham County | C | 49th |
| Saginaw County | C | 52nd |
| Chippewa County | C | 48th |
FAQ
How often does power go out in Alger County?
Between 2014 and 2025, Alger County recorded 389 outage events, averaging 2.7 hours each.
What is Alger County's reliability grade?
Alger County has a Reliability Grade of C, in the 50th national percentile.
What was the worst power outage in Alger County?
The worst outage on record started August 25, 2020, lasting 0 hours and affecting up to 5,000 customers.