County annual report · FIPS 26117
2025 Montcalm County, MI Power Outage Report
In 2025, customers in Montcalm County, MI went without power for an average of 6.7 hours, a total of 226K customer-hours (Michigan average 12.9 hours). That ranks 62nd worst of 83 Michigan counties and 1206th 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 Montcalm 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 | July 16, 2025 14:15 | July 17, 2025 15:45 | 1d 1h | 3,455 | 7,544 |
| 2 | December 13, 2025 04:15 | December 13, 2025 07:45 | 3h 30m | 2,959 | 10K |
| 3 | December 26, 2025 14:00 | January 1, 2026 00:00 | 5d 10h | 2,061 | 52K |
| 4 | June 23, 2025 16:45 | June 24, 2025 00:30 | 7h 45m | 1,951 | 4,928 |
| 5 | June 28, 2025 01:30 | June 28, 2025 07:30 | 6h | 1,736 | 5,680 |
| 6 | September 6, 2025 04:15 | September 6, 2025 09:00 | 4h 45m | 1,733 | 8,232 |
| 7 | March 30, 2025 22:15 | April 2, 2025 09:30 | 2d 11h | 1,577 | 43K |
| 8 | April 2, 2025 13:15 | April 3, 2025 10:00 | 20h 45m | 1,043 | 3,607 |
| 9 | August 19, 2025 03:45 | August 19, 2025 16:15 | 12h 30m | 952 | 3,023 |
| 10 | July 10, 2025 06:00 | July 10, 2025 16:15 | 10h 15m | 917 | 3,800 |
Outage episodes by size in 2025: 91 reached 100+ customers, 8 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 Montcalm 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 |
| DTE Electric Company | 2024 | 8.0 hrs | 1.25 | 2.7 hrs | 0.94 |
| Tri-County Electric Coop (MI) | 2024 | 4.0 hrs | 1.00 | 1.8 hrs | 0.86 |
| Wolverine Power Supply Coop | - | - | - | - | - |
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 ÷ 33,946 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. Montcalm County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montcalm 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/montcalm-county