County annual report · FIPS 26147
2015 St. Clair County, MI Power Outage Report
In 2015, customers in St. Clair County, MI went without power for an average of 9.5 hours, a total of 676K customer-hours (Michigan average 6.8 hours). That ranks 29th worst of 80 Michigan counties and 278th of 2,484 nationally.
Compared with MI, the US
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in St. Clair County, 2015
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 29, 2015 15:00 | March 31, 2015 04:15 | 1d 13h | 7,710 | 13K |
| 2 | August 14, 2015 15:30 | August 17, 2015 02:30 | 2d 11h | 6,525 | 57K |
| 3 | October 15, 2015 18:00 | October 17, 2015 03:45 | 1d 9h | 6,519 | 23K |
| 4 | July 25, 2015 11:30 | July 28, 2015 10:30 | 2d 23h | 6,425 | 29K |
| 5 | July 19, 2015 03:00 | July 23, 2015 01:15 | 3d 22h | 6,404 | 42K |
| 6 | November 4, 2015 13:30 | November 7, 2015 20:00 | 3d 6h | 4,208 | 16K |
| 7 | November 21, 2015 15:15 | November 24, 2015 01:45 | 2d 10h | 3,942 | 63K |
| 8 | August 2, 2015 19:30 | August 4, 2015 17:30 | 1d 22h | 3,707 | 87K |
| 9 | May 18, 2015 15:30 | May 19, 2015 03:00 | 11h 30m | 3,152 | 8,663 |
| 10 | December 21, 2015 22:45 | December 25, 2015 19:15 | 3d 20h | 3,139 | 32K |
Outage episodes by size in 2015: 75 reached 100+ customers, 31 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 St. Clair County reported on EIA Form 861 for 2015, 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 | 2015 | 4.6 hrs | 1.00 | 3.1 hrs | 0.91 |
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 2015; 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, 2015, 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/2015/michigan/st-clair-county