County annual report · FIPS 26007
2025 Alpena County, MI Power Outage Report
In 2025, customers in Alpena County, MI went without power for an average of 51.7 hours, a total of 942K customer-hours (Michigan average 12.9 hours). That ranks 15th worst of 83 Michigan counties and 77th of 3,000 nationally.
Compared with MI, the US and 2024
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Alpena County, 2025
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | March 29, 2025 07:30 | April 22, 2025 00:45 | 23d 17h | 3,528 | 926K |
| 2 | April 29, 2025 13:30 | April 30, 2025 20:15 | 1d 6h | 564 | 2,829 |
| 3 | January 29, 2025 23:30 | January 30, 2025 00:15 | 45m | 539 | 404 |
| 4 | July 24, 2025 17:30 | July 24, 2025 20:30 | 3h | 526 | 691 |
| 5 | December 28, 2025 06:15 | December 28, 2025 09:15 | 3h | 465 | 1,312 |
| 6 | November 5, 2025 21:00 | November 5, 2025 23:30 | 2h 30m | 389 | 628 |
| 7 | March 29, 2025 03:45 | March 29, 2025 06:30 | 2h 45m | 334 | 857 |
| 8 | January 30, 2025 17:00 | January 30, 2025 17:15 | 15m | 202 | 51 |
| 9 | November 30, 2025 11:30 | December 1, 2025 00:45 | 13h 15m | 191 | 744 |
| 10 | March 15, 2025 18:45 | March 16, 2025 21:30 | 1d 2h | 144 | 2,630 |
Outage episodes by size in 2025: 15 reached 100+ customers, 1 reached 1,000+ customers, 0 reached 10,000+ customers.
Utility reliability filed with the EIA
SAIDI (average outage time per customer) and SAIFI (average interruptions per customer) that utilities serving Alpena County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.
| Utility | EIA year | SAIDI | SAIFI | SAIDI excl. major events | SAIFI excl. major events |
|---|---|---|---|---|---|
| Presque Isle Elec & Gas Coop | 2015 | 22.8 hrs | 2.30 | 3.8 hrs | 1.32 |
| Wolverine Power Supply Coop | - | - | - | - | - |
| Alpena Power Co | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Michigan's customers in 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 18,236 customers (ORNL modeled county customer count), including major storm days. It is comparable across counties but is not the SAIDI a utility files.
- An outage event is a continuous stretch with customers out; counts at 100, 1,000 and 10,000+ use its peak.
- Years loaded: 2015–2025. Alpena County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Alpena County, MI annual power outage report, 2025, data as of Oct 3, 2026 02:41 UTC, sources: DOE EAGLE-I (https://eagle-i.doe.gov/); EAGLE-I modeled customer counts (MCC) (https://figshare.com/); EIA Form 861 (utility reliability) (https://www.eia.gov/electricity/data/eia861/). https://massoutage.com/reports/2025/michigan/alpena-county