County annual report · FIPS 26119
2025 Montmorency County, MI Power Outage Report
In 2025, customers in Montmorency County, MI went without power for an average of 474.9 hours, a total of 2.9M customer-hours (Michigan average 12.9 hours). That ranks 1st worst of 83 Michigan counties and 9th 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 Montmorency 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 06:15 | April 28, 2025 21:45 | 30d 15h | 9,552 | 2.8M |
| 2 | August 10, 2025 21:45 | August 11, 2025 03:00 | 5h 15m | 2,061 | 2,605 |
| 3 | March 6, 2025 06:45 | March 6, 2025 21:00 | 14h 15m | 1,511 | 6,497 |
| 4 | April 29, 2025 14:45 | May 2, 2025 00:00 | 2d 9h | 911 | 4,945 |
| 5 | June 21, 2025 17:30 | June 22, 2025 14:00 | 20h 30m | 736 | 4,574 |
| 6 | May 20, 2025 12:00 | May 20, 2025 20:00 | 8h | 703 | 2,875 |
| 7 | May 18, 2025 15:15 | May 18, 2025 15:45 | 30m | 683 | 184 |
| 8 | March 15, 2025 14:30 | March 17, 2025 01:15 | 1d 10h | 650 | 9,513 |
| 9 | November 3, 2025 15:45 | November 4, 2025 00:45 | 9h | 603 | 1,061 |
| 10 | February 6, 2025 17:00 | February 6, 2025 17:30 | 30m | 516 | 258 |
Outage episodes by size in 2025: 37 reached 100+ customers, 3 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 Montmorency 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 |
|---|---|---|---|---|---|
| Consumers Energy Co - (MI) | 2024 | 8.4 hrs | 1.32 | 2.6 hrs | 0.88 |
| Great Lakes Energy Coop | 2024 | 8.1 hrs | 2.83 | 4.3 hrs | 2.35 |
| 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 ÷ 6,073 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. Montmorency County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montmorency 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/montmorency-county