County annual report · FIPS 26031
2021 Cheboygan County, MI Power Outage Report
In 2021, customers in Cheboygan County, MI went without power for an average of 27.3 hours, a total of 439K customer-hours (Michigan average 26.6 hours). That ranks 34th worst of 83 Michigan counties and 325th 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 Cheboygan 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 | December 16, 2021 08:45 | December 21, 2021 05:30 | 4d 20h | 10,633 | 339K |
| 2 | March 11, 2021 12:00 | March 12, 2021 23:30 | 1d 11h | 5,741 | 14K |
| 3 | July 21, 2021 19:15 | July 21, 2021 21:45 | 2h 30m | 3,008 | 2,617 |
| 4 | September 20, 2021 20:15 | September 21, 2021 01:45 | 5h 30m | 2,113 | 4,793 |
| 5 | July 24, 2021 08:15 | July 25, 2021 01:45 | 17h 30m | 1,972 | 4,487 |
| 6 | April 27, 2021 14:30 | April 27, 2021 18:45 | 4h 15m | 1,963 | 3,575 |
| 7 | May 14, 2021 04:15 | May 14, 2021 07:00 | 2h 45m | 1,945 | 4,456 |
| 8 | November 21, 2021 23:00 | November 22, 2021 23:15 | 1d | 1,802 | 8,939 |
| 9 | August 9, 2021 20:15 | August 10, 2021 09:30 | 13h 15m | 1,216 | 2,112 |
| 10 | May 26, 2021 03:30 | May 27, 2021 03:30 | 1d | 1,205 | 4,306 |
Outage episodes by size in 2021: 45 reached 100+ customers, 11 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 Cheboygan 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 |
| Great Lakes Energy Coop | 2021 | 20.4 hrs | 3.25 | 3.4 hrs | 1.71 |
| Presque Isle Elec & Gas Coop | 2015 | 22.8 hrs | 2.30 | 3.8 hrs | 1.32 |
| 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 ÷ 16,118 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. Cheboygan County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Cheboygan 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/cheboygan-county