County annual report · FIPS 26137
2025 Otsego County, MI Power Outage Report
In 2025, customers in Otsego County, MI went without power for an average of 196.7 hours, a total of 3.8M customer-hours (Michigan average 12.9 hours). That ranks 6th worst of 83 Michigan counties and 16th 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 Otsego 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 05:45 | April 19, 2025 16:45 | 21d 11h | 17,912 | 3.6M |
| 2 | August 7, 2025 01:45 | August 7, 2025 04:45 | 3h | 3,737 | 10K |
| 3 | August 8, 2025 01:30 | August 8, 2025 03:30 | 2h | 3,735 | 7,088 |
| 4 | February 6, 2025 21:15 | February 7, 2025 23:00 | 1d 1h | 2,909 | 23K |
| 5 | November 27, 2025 03:00 | November 29, 2025 03:00 | 2d | 2,606 | 19K |
| 6 | May 13, 2025 12:45 | May 14, 2025 04:00 | 15h 15m | 2,082 | 3,464 |
| 7 | June 30, 2025 10:30 | June 30, 2025 18:15 | 7h 45m | 2,078 | 6,717 |
| 8 | May 15, 2025 11:45 | May 16, 2025 01:30 | 13h 45m | 2,040 | 3,493 |
| 9 | May 17, 2025 04:15 | May 17, 2025 16:45 | 12h 30m | 2,021 | 4,708 |
| 10 | August 8, 2025 19:15 | August 8, 2025 23:00 | 3h 45m | 1,866 | 4,124 |
Outage episodes by size in 2025: 61 reached 100+ customers, 17 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 Otsego 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 | - | - | - | - | - |
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 ÷ 19,174 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. Otsego County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Otsego 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/otsego-county