County annual report · FIPS 26149
2021 St. Joseph County, MI Power Outage Report
In 2021, customers in St. Joseph County, MI went without power for an average of 67.2 hours, a total of 1.3M customer-hours (Michigan average 26.6 hours). That ranks 7th worst of 83 Michigan counties and 120th of 2,974 nationally.
Compared with MI, the US and 2020
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in St. Joseph County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | August 9, 2021 22:45 | August 19, 2021 08:30 | 9d 9h | 13,700 | 1.0M |
| 2 | September 7, 2021 14:15 | September 13, 2021 13:00 | 5d 22h | 3,504 | 33K |
| 3 | May 27, 2021 09:15 | May 27, 2021 17:15 | 8h | 2,684 | 15K |
| 4 | August 6, 2021 19:45 | August 8, 2021 00:15 | 1d 4h | 2,414 | 7,154 |
| 5 | December 16, 2021 02:45 | December 17, 2021 06:30 | 1d 3h | 2,274 | 6,126 |
| 6 | September 22, 2021 21:45 | September 23, 2021 05:00 | 7h 15m | 2,245 | 15K |
| 7 | January 1, 2021 21:30 | January 4, 2021 19:45 | 2d 22h | 1,835 | 31K |
| 8 | June 20, 2021 23:30 | June 23, 2021 10:30 | 2d 11h | 1,790 | 32K |
| 9 | August 29, 2021 14:30 | August 31, 2021 01:00 | 1d 10h | 1,703 | 18K |
| 10 | April 8, 2021 22:00 | April 9, 2021 07:15 | 9h 15m | 1,471 | 8,084 |
Outage episodes by size in 2021: 78 reached 100+ customers, 18 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 St. Joseph County reported on EIA Form 861 for 2021, 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 |
|---|---|---|---|---|---|
| Consumers Energy Co - (MI) | 2021 | 15.2 hrs | 1.60 | 3.8 hrs | 1.05 |
| Indiana Michigan Power Co | 2021 | 11.2 hrs | 1.57 | 3.8 hrs | 1.09 |
| Midwest Energy Cooperative - (MI) | 2014 | 9.8 hrs | 2.23 | 4.9 hrs | 1.87 |
| City of Sturgis - (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 95% of Michigan's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 19,440 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. Joseph County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), St. Joseph County, MI annual power outage report, 2021, 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/2021/michigan/st-joseph-county