County annual report · FIPS 26121
2025 Muskegon County, MI Power Outage Report
In 2025, customers in Muskegon County, MI went without power for an average of 11.9 hours, a total of 1.2M customer-hours (Michigan average 12.9 hours). That ranks 48th worst of 83 Michigan counties and 661st 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 Muskegon 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 16, 2025 01:00 | May 23, 2025 05:15 | 7d 4h | 22,639 | 813K |
| 2 | June 21, 2025 07:30 | June 24, 2025 01:45 | 2d 18h | 7,053 | 22K |
| 3 | November 26, 2025 10:15 | November 28, 2025 09:45 | 1d 23h | 5,430 | 86K |
| 4 | November 14, 2025 01:15 | November 14, 2025 06:30 | 5h 15m | 4,080 | 16K |
| 5 | February 26, 2025 17:30 | February 26, 2025 19:15 | 1h 45m | 3,438 | 5,111 |
| 6 | February 21, 2025 02:45 | February 21, 2025 08:45 | 6h | 3,238 | 8,147 |
| 7 | July 4, 2025 07:45 | July 4, 2025 19:15 | 11h 30m | 3,096 | 17K |
| 8 | July 5, 2025 19:15 | July 7, 2025 03:00 | 1d 7h | 3,083 | 33K |
| 9 | July 3, 2025 00:15 | July 3, 2025 09:30 | 9h 15m | 2,117 | 14K |
| 10 | June 28, 2025 22:00 | June 29, 2025 16:30 | 18h 30m | 2,116 | 16K |
Outage episodes by size in 2025: 121 reached 100+ customers, 19 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 Muskegon 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 |
| 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 ÷ 103,718 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. Muskegon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Muskegon 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/muskegon-county