County annual report · FIPS 26129
2021 Ogemaw County, MI Power Outage Report
In 2021, customers in Ogemaw County, MI went without power for an average of 77.1 hours, a total of 901K customer-hours (Michigan average 26.6 hours). That ranks 6th worst of 83 Michigan counties and 106th 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 Ogemaw 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 17:30 | December 20, 2021 12:45 | 3d 19h | 9,602 | 304K |
| 2 | December 16, 2021 02:30 | December 16, 2021 16:30 | 14h | 7,847 | 23K |
| 3 | August 28, 2021 18:00 | August 31, 2021 02:15 | 2d 8h | 7,347 | 218K |
| 4 | August 8, 2021 04:30 | August 8, 2021 17:00 | 12h 30m | 5,677 | 15K |
| 5 | August 11, 2021 04:15 | August 11, 2021 22:30 | 18h 15m | 4,379 | 76K |
| 6 | August 12, 2021 15:00 | August 17, 2021 12:30 | 4d 21h | 4,101 | 70K |
| 7 | December 11, 2021 15:00 | December 14, 2021 08:15 | 2d 17h | 3,477 | 77K |
| 8 | November 20, 2021 15:45 | November 20, 2021 21:00 | 5h 15m | 2,160 | 11K |
| 9 | August 10, 2021 11:00 | August 10, 2021 22:15 | 11h 15m | 1,979 | 2,003 |
| 10 | November 21, 2021 23:45 | November 23, 2021 05:45 | 1d 6h | 1,751 | 6,521 |
Outage episodes by size in 2021: 65 reached 100+ customers, 16 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 Ogemaw 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 |
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 ÷ 11,681 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. Ogemaw County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ogemaw 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/ogemaw-county