County annual report · FIPS 26025
2024 Calhoun County, MI Power Outage Report
In 2024, customers in Calhoun County, MI went without power for an average of 6.0 hours, a total of 561K customer-hours (Michigan average 8.5 hours). That ranks 51st worst of 83 Michigan counties and 1411th of 2,990 nationally.
Compared with MI, the US and 2023
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Calhoun County, 2024
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 12, 2024 18:00 | April 14, 2024 03:45 | 1d 9h | 10,575 | 149K |
| 2 | June 25, 2024 11:30 | June 27, 2024 21:00 | 2d 9h | 4,562 | 62K |
| 3 | July 9, 2024 22:30 | July 12, 2024 16:30 | 2d 18h | 3,290 | 46K |
| 4 | June 17, 2024 00:30 | June 19, 2024 05:15 | 2d 4h | 3,264 | 38K |
| 5 | January 12, 2024 22:45 | January 15, 2024 08:30 | 2d 9h | 3,260 | 68K |
| 6 | October 6, 2024 15:15 | October 7, 2024 03:30 | 12h 15m | 2,582 | 5,461 |
| 7 | June 20, 2024 14:30 | June 21, 2024 07:45 | 17h 15m | 2,357 | 8,440 |
| 8 | February 28, 2024 05:45 | February 29, 2024 10:00 | 1d 4h | 2,140 | 35K |
| 9 | May 1, 2024 20:15 | May 1, 2024 23:30 | 3h 15m | 1,862 | 3,873 |
| 10 | July 15, 2024 14:30 | July 16, 2024 03:00 | 12h 30m | 1,660 | 7,242 |
Outage episodes by size in 2024: 101 reached 100+ customers, 15 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 Calhoun County reported on EIA Form 861 for 2024, 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) | 2024 | 8.4 hrs | 1.32 | 2.6 hrs | 0.88 |
| City of Marshall - (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 n/a of Michigan's customers in 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 92,794 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. Calhoun County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Calhoun County, MI annual power outage report, 2024, 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/2024/michigan/calhoun-county