County annual report · FIPS 26157
2025 Tuscola County, MI Power Outage Report
In 2025, customers in Tuscola County, MI went without power for an average of 8.3 hours, a total of 139K customer-hours (Michigan average 12.9 hours). That ranks 56th worst of 83 Michigan counties and 972nd 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 Tuscola 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 | April 11, 2025 06:30 | April 12, 2025 00:30 | 18h | 1,827 | 11K |
| 2 | March 30, 2025 23:45 | April 4, 2025 07:30 | 4d 7h | 1,757 | 35K |
| 3 | July 24, 2025 18:15 | July 26, 2025 08:15 | 1d 14h | 1,599 | 8,643 |
| 4 | April 29, 2025 10:15 | May 2, 2025 21:45 | 3d 11h | 1,311 | 9,272 |
| 5 | May 5, 2025 12:30 | May 28, 2025 18:00 | 23d 5h | 1,187 | 18K |
| 6 | June 19, 2025 03:00 | June 20, 2025 02:45 | 23h 45m | 1,062 | 6,814 |
| 7 | March 4, 2025 12:45 | March 5, 2025 05:45 | 17h | 825 | 3,328 |
| 8 | March 15, 2025 18:00 | March 17, 2025 20:15 | 2d 2h | 471 | 5,463 |
| 9 | August 12, 2025 15:45 | August 14, 2025 19:15 | 2d 3h | 396 | 6,691 |
| 10 | March 27, 2025 09:45 | March 28, 2025 18:00 | 1d 8h | 333 | 4,144 |
Outage episodes by size in 2025: 23 reached 100+ customers, 6 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 Tuscola 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 |
| DTE Electric Company | 2024 | 8.0 hrs | 1.25 | 2.7 hrs | 0.94 |
| Thumb Electric Coop of Mich | - | - | - | - | - |
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 ÷ 16,639 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. Tuscola County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Tuscola 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/tuscola-county