County annual report · FIPS 26005
2025 Allegan County, MI Power Outage Report
In 2025, customers in Allegan County, MI went without power for an average of 14.4 hours, a total of 1.2M customer-hours (Michigan average 12.9 hours). That ranks 42nd worst of 83 Michigan counties and 535th 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 Allegan 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 | May 15, 2025 16:15 | May 21, 2025 06:30 | 5d 14h | 14,042 | 657K |
| 2 | March 30, 2025 21:15 | April 4, 2025 04:00 | 4d 6h | 9,480 | 235K |
| 3 | June 21, 2025 13:00 | June 24, 2025 17:00 | 3d 4h | 7,005 | 38K |
| 4 | March 28, 2025 14:15 | March 28, 2025 20:00 | 5h 45m | 6,959 | 24K |
| 5 | September 20, 2025 23:45 | September 22, 2025 11:15 | 1d 11h | 2,607 | 21K |
| 6 | November 26, 2025 08:45 | November 28, 2025 03:30 | 1d 18h | 2,537 | 36K |
| 7 | May 14, 2025 05:30 | May 14, 2025 08:15 | 2h 45m | 2,071 | 5,178 |
| 8 | June 13, 2025 14:45 | June 14, 2025 02:45 | 12h | 1,981 | 13K |
| 9 | October 12, 2025 02:15 | October 12, 2025 09:30 | 7h 15m | 1,833 | 13K |
| 10 | August 3, 2025 01:30 | August 3, 2025 07:45 | 6h 15m | 1,827 | 10K |
Outage episodes by size in 2025: 124 reached 100+ customers, 22 reached 1,000+ customers, 1 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 Allegan 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 |
| Indiana Michigan Power Co | 2024 | 4.3 hrs | 1.25 | 2.5 hrs | 1.08 |
| Great Lakes Energy Coop | 2024 | 8.1 hrs | 2.83 | 4.3 hrs | 2.35 |
| City of Holland | 2024 | 5.7 hrs | 0.62 | 40 min | 0.43 |
| Wolverine Power Supply Coop | - | - | - | - | - |
| City of South Haven - (MI) | - | - | - | - | - |
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 ÷ 86,725 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. Allegan County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Allegan 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/allegan-county