County annual report · FIPS 26027
2016 Cass County, MI Power Outage Report
In 2016, customers in Cass County, MI went without power for an average of 36.4 hours, a total of 125K customer-hours (Michigan average 2.0 hours). That ranks 2nd worst of 80 Michigan counties and 75th of 2,391 nationally.
Compared with MI, the US and 2015
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Cass County, 2016
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 4, 2016 23:30 | December 5, 2016 19:00 | 19h 30m | 2,056 | 9,132 |
| 2 | April 29, 2016 21:15 | April 29, 2016 23:00 | 1h 45m | 1,948 | 3,407 |
| 3 | July 24, 2016 07:30 | July 24, 2016 15:45 | 8h 15m | 1,768 | 7,121 |
| 4 | April 30, 2016 12:30 | May 1, 2016 00:45 | 12h 15m | 1,699 | 8,054 |
| 5 | July 18, 2016 06:45 | July 19, 2016 04:15 | 21h 30m | 1,364 | 17K |
| 6 | February 3, 2016 04:00 | February 3, 2016 08:45 | 4h 45m | 1,239 | 2,002 |
| 7 | February 3, 2016 10:30 | February 3, 2016 18:00 | 7h 30m | 1,239 | 1,181 |
| 8 | October 22, 2016 07:30 | October 22, 2016 12:00 | 4h 30m | 1,114 | 4,889 |
| 9 | October 23, 2016 07:30 | October 23, 2016 10:15 | 2h 45m | 1,114 | 2,785 |
| 10 | March 16, 2016 15:15 | March 17, 2016 21:00 | 1d 5h | 797 | 2,476 |
Outage episodes by size in 2016: 64 reached 100+ customers, 9 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 Cass County reported on EIA Form 861 for 2016, 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 |
|---|---|---|---|---|---|
| Indiana Michigan Power Co | 2016 | 6.8 hrs | 1.48 | 4.4 hrs | 1.33 |
| Midwest Energy Cooperative - (MI) | 2014 | 9.8 hrs | 2.23 | 4.9 hrs | 1.87 |
| Wolverine Power Supply Coop | - | - | - | - | - |
| City of Dowagiac | - | - | - | - | - |
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 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 3,423 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. Cass County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cass County, MI annual power outage report, 2016, 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/2016/michigan/cass-county