County annual report · FIPS 26077
2021 Kalamazoo County, MI Power Outage Report
In 2021, customers in Kalamazoo County, MI went without power for an average of 12.4 hours, a total of 1.2M customer-hours (Michigan average 26.6 hours). That ranks 54th worst of 83 Michigan counties and 661st 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 Kalamazoo 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 | September 7, 2021 18:00 | September 10, 2021 00:30 | 2d 6h | 16,738 | 290K |
| 2 | August 11, 2021 02:45 | August 16, 2021 06:00 | 5d 3h | 8,887 | 250K |
| 3 | December 11, 2021 12:30 | December 14, 2021 03:30 | 2d 15h | 6,950 | 54K |
| 4 | August 3, 2021 00:15 | August 4, 2021 02:45 | 1d 2h | 6,829 | 58K |
| 5 | November 13, 2021 05:45 | November 14, 2021 18:30 | 1d 12h | 6,577 | 72K |
| 6 | May 28, 2021 10:45 | May 29, 2021 04:30 | 17h 45m | 5,962 | 20K |
| 7 | July 13, 2021 12:30 | July 14, 2021 02:15 | 13h 45m | 4,690 | 7,409 |
| 8 | September 14, 2021 17:30 | September 16, 2021 09:15 | 1d 15h | 4,572 | 22K |
| 9 | November 22, 2021 00:15 | November 22, 2021 23:00 | 22h 45m | 3,559 | 32K |
| 10 | October 25, 2021 00:00 | October 25, 2021 22:45 | 22h 45m | 3,389 | 17K |
Outage episodes by size in 2021: 154 reached 100+ customers, 36 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 Kalamazoo 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 |
| Wolverine Power Supply Coop | - | - | - | - | - |
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 ÷ 96,417 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. Kalamazoo County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Kalamazoo 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/kalamazoo-county