County annual report · FIPS 26133
2025 Osceola County, MI Power Outage Report
In 2025, customers in Osceola County, MI went without power for an average of 17.0 hours, a total of 310K customer-hours (Michigan average 12.9 hours). That ranks 37th worst of 83 Michigan counties and 433rd 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 Osceola 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 | December 26, 2025 12:30 | January 1, 2026 00:00 | 5d 11h | 4,899 | 219K |
| 2 | November 27, 2025 00:00 | November 27, 2025 23:00 | 23h | 1,395 | 9,171 |
| 3 | October 13, 2025 13:45 | October 13, 2025 18:30 | 4h 45m | 1,199 | 1,532 |
| 4 | March 15, 2025 07:45 | March 17, 2025 02:30 | 1d 18h | 1,150 | 16K |
| 5 | October 20, 2025 04:15 | October 20, 2025 07:00 | 2h 45m | 1,061 | 475 |
| 6 | August 7, 2025 21:15 | August 8, 2025 01:00 | 3h 45m | 1,035 | 2,589 |
| 7 | September 4, 2025 15:15 | September 4, 2025 20:45 | 5h 30m | 1,035 | 1,826 |
| 8 | August 14, 2025 15:30 | August 14, 2025 20:00 | 4h 30m | 1,034 | 2,147 |
| 9 | June 30, 2025 14:30 | June 30, 2025 16:30 | 2h | 1,032 | 1,922 |
| 10 | March 5, 2025 12:00 | March 5, 2025 17:00 | 5h | 902 | 4,260 |
Outage episodes by size in 2025: 44 reached 100+ customers, 9 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 Osceola 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 |
| 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 ÷ 18,272 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. Osceola County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Osceola 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/osceola-county