County annual report · FIPS 26147
2022 St. Clair County, MI Power Outage Report
In 2022, customers in St. Clair County, MI went without power for an average of 6.2 hours, a total of 441K customer-hours (Michigan average 10.5 hours). That ranks 60th worst of 83 Michigan counties and 1172nd of 2,976 nationally.
Compared with MI, the US and 2021
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in St. Clair County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 1, 2022 07:15 | February 3, 2022 01:00 | 1d 17h | 15,385 | 63K |
| 2 | May 19, 2022 12:45 | May 22, 2022 19:00 | 3d 6h | 10,163 | 28K |
| 3 | August 30, 2022 17:15 | August 30, 2022 21:45 | 4h 30m | 7,406 | 30K |
| 4 | November 4, 2022 20:15 | November 8, 2022 15:45 | 3d 19h | 4,399 | 29K |
| 5 | May 26, 2022 14:15 | May 28, 2022 22:15 | 2d 8h | 3,974 | 8,409 |
| 6 | October 7, 2022 01:00 | October 7, 2022 09:30 | 8h 30m | 3,851 | 2,597 |
| 7 | October 31, 2022 20:00 | November 2, 2022 10:00 | 1d 14h | 3,608 | 9,179 |
| 8 | August 31, 2022 15:30 | September 4, 2022 22:45 | 4d 7h | 3,480 | 28K |
| 9 | June 26, 2022 18:45 | June 28, 2022 05:15 | 1d 10h | 3,439 | 4,606 |
| 10 | December 22, 2022 18:15 | December 26, 2022 01:00 | 3d 6h | 3,131 | 28K |
Outage episodes by size in 2022: 94 reached 100+ customers, 26 reached 1,000+ customers, 2 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 St. Clair County reported on EIA Form 861 for 2022, 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 | 2022 | 9.7 hrs | 1.25 | 2.4 hrs | 0.98 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 96% of Michigan's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 71,469 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. St. Clair County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Clair County, MI annual power outage report, 2022, 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/2022/michigan/st-clair-county