County annual report · FIPS 26151
2023 Sanilac County, MI Power Outage Report
In 2023, customers in Sanilac County, MI went without power for an average of 16.7 hours, a total of 215K customer-hours (Michigan average 26.5 hours). That ranks 25th worst of 83 Michigan counties and 519th of 2,977 nationally.
Compared with MI, the US and 2022
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Sanilac County, 2023
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 4, 2023 03:15 | March 8, 2023 11:00 | 4d 7h | 2,197 | 29K |
| 2 | March 17, 2023 05:30 | March 18, 2023 21:45 | 1d 16h | 2,025 | 12K |
| 3 | February 23, 2023 23:00 | March 2, 2023 07:45 | 6d 8h | 1,631 | 44K |
| 4 | June 24, 2023 00:00 | June 25, 2023 10:00 | 1d 10h | 1,288 | 21K |
| 5 | December 18, 2023 14:30 | December 19, 2023 04:45 | 14h 15m | 1,150 | 3,583 |
| 6 | August 18, 2023 15:15 | August 21, 2023 15:00 | 2d 23h | 773 | 5,092 |
| 7 | July 5, 2023 12:30 | July 10, 2023 00:30 | 4d 12h | 761 | 8,507 |
| 8 | July 11, 2023 12:30 | July 18, 2023 22:30 | 7d 10h | 748 | 16K |
| 9 | August 7, 2023 18:45 | August 10, 2023 01:15 | 2d 6h | 673 | 9,744 |
| 10 | January 1, 2023 00:15 | January 3, 2023 09:45 | 2d 9h | 643 | 16K |
Outage episodes by size in 2023: 26 reached 100+ customers, 5 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 2023, 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 | 2023 | 25.7 hrs | 1.72 | 2.6 hrs | 0.85 |
| 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 2023; 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, 2023, 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/2023/michigan/sanilac-county