County annual report · FIPS 26151
2018 Sanilac County, MI Power Outage Report
In 2018, customers in Sanilac County, MI went without power for an average of 56.5 hours, a total of 729K customer-hours (Michigan average 10.0 hours). That ranks 4th worst of 80 Michigan counties and 110th of 2,798 nationally.
Compared with MI, the US and 2017
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Sanilac County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 4, 2018 13:45 | May 11, 2018 05:45 | 6d 16h | 13,303 | 563K |
| 2 | April 15, 2018 18:00 | April 19, 2018 10:30 | 3d 16h | 1,953 | 29K |
| 3 | December 28, 2018 12:30 | December 29, 2018 18:15 | 1d 5h | 1,848 | 3,898 |
| 4 | December 20, 2018 06:00 | December 20, 2018 10:45 | 4h 45m | 1,847 | 8,344 |
| 5 | February 23, 2018 13:00 | February 24, 2018 01:00 | 12h | 1,629 | 4,226 |
| 6 | August 2, 2018 15:45 | August 4, 2018 03:15 | 1d 11h | 1,629 | 6,021 |
| 7 | November 26, 2018 11:45 | November 28, 2018 21:00 | 2d 9h | 1,405 | 9,513 |
| 8 | April 13, 2018 19:45 | April 15, 2018 13:30 | 1d 17h | 1,262 | 27K |
| 9 | September 1, 2018 17:00 | September 4, 2018 10:00 | 2d 17h | 1,236 | 9,760 |
| 10 | August 29, 2018 02:45 | August 29, 2018 23:00 | 20h 15m | 1,151 | 4,669 |
Outage episodes by size in 2018: 48 reached 100+ customers, 12 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 Sanilac County reported on EIA Form 861 for 2018, 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 | 2018 | 8.1 hrs | 1.36 | 3.0 hrs | 1.04 |
| 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 91% of Michigan's customers in 2018; 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, 2018, 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/2018/michigan/sanilac-county