County annual report · FIPS 26151
2025 Sanilac County, MI Power Outage Report
In 2025, customers in Sanilac County, MI went without power for an average of 4.8 hours, a total of 62K customer-hours (Michigan average 12.9 hours). That ranks 71st worst of 83 Michigan counties and 1546th 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 Sanilac 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 | June 21, 2025 02:15 | June 25, 2025 00:30 | 3d 22h | 912 | 6,000 |
| 2 | February 27, 2025 09:45 | February 28, 2025 05:30 | 19h 45m | 895 | 765 |
| 3 | November 28, 2025 00:45 | November 28, 2025 21:15 | 20h 30m | 793 | 1,936 |
| 4 | November 3, 2025 17:15 | November 4, 2025 05:15 | 12h | 714 | 2,851 |
| 5 | March 31, 2025 00:15 | April 2, 2025 04:30 | 2d 4h | 638 | 12K |
| 6 | March 15, 2025 17:15 | March 18, 2025 05:15 | 2d 12h | 624 | 6,383 |
| 7 | April 29, 2025 17:45 | May 2, 2025 00:15 | 2d 6h | 602 | 5,265 |
| 8 | July 16, 2025 10:15 | July 17, 2025 08:45 | 22h 30m | 350 | 918 |
| 9 | December 29, 2025 06:15 | December 30, 2025 23:30 | 1d 17h | 291 | 1,666 |
| 10 | April 2, 2025 16:45 | April 4, 2025 21:15 | 2d 4h | 232 | 3,151 |
Outage episodes by size in 2025: 17 reached 100+ customers, 0 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 Sanilac 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 |
|---|---|---|---|---|---|
| DTE Electric Company | 2024 | 8.0 hrs | 1.25 | 2.7 hrs | 0.94 |
| Thumb Electric Coop of Mich | - | - | - | - | - |
| City of Croswell - (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 ÷ 12,899 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. Sanilac County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Sanilac 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/sanilac-county