County annual report · FIPS 26117
2015 Montcalm County, MI Power Outage Report
In 2015, customers in Montcalm County, MI went without power for an average of 9.2 hours, a total of 312K customer-hours (Michigan average 6.8 hours). That ranks 31st worst of 80 Michigan counties and 288th 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 Montcalm 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 | February 10, 2015 00:30 | February 10, 2015 03:00 | 2h 30m | 4,885 | 7,532 |
| 2 | December 24, 2015 05:45 | December 27, 2015 22:30 | 3d 16h | 4,767 | 173K |
| 3 | October 19, 2015 16:30 | October 19, 2015 20:45 | 4h 15m | 3,460 | 6,051 |
| 4 | May 27, 2015 19:30 | May 28, 2015 05:00 | 9h 30m | 2,786 | 10K |
| 5 | December 12, 2015 12:00 | December 12, 2015 16:15 | 4h 15m | 2,631 | 7,153 |
| 6 | July 14, 2015 04:15 | July 15, 2015 00:00 | 19h 45m | 2,169 | 6,172 |
| 7 | August 2, 2015 18:00 | August 4, 2015 17:45 | 1d 23h | 2,073 | 40K |
| 8 | November 2, 2015 20:00 | November 3, 2015 01:00 | 5h | 2,010 | 7,031 |
| 9 | July 18, 2015 13:30 | July 19, 2015 01:45 | 12h 15m | 1,536 | 3,616 |
| 10 | December 28, 2015 16:30 | December 29, 2015 23:30 | 1d 7h | 1,043 | 11K |
Outage episodes by size in 2015: 67 reached 100+ customers, 10 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 Montcalm 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 |
|---|---|---|---|---|---|
| Consumers Energy Co - (MI) | 2015 | 7.3 hrs | 1.18 | 3.0 hrs | 0.98 |
| Great Lakes Energy Coop | 2015 | 15.2 hrs | 2.27 | 2.9 hrs | 1.35 |
| DTE Electric Company | 2015 | 4.6 hrs | 1.00 | 3.1 hrs | 0.91 |
| Tri-County Electric Coop (MI) | 2015 | 4.7 hrs | 1.68 | 3.0 hrs | 1.49 |
| 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 n/a of Michigan's customers in 2015; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 33,946 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. Montcalm County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Montcalm 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/montcalm-county