County annual report · FIPS 26051
2021 Gladwin County, MI Power Outage Report
In 2021, customers in Gladwin County, MI went without power for an average of 43.5 hours, a total of 662K customer-hours (Michigan average 26.6 hours). That ranks 19th worst of 83 Michigan counties and 207th 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 Gladwin 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 | August 11, 2021 04:15 | August 11, 2021 22:30 | 18h 15m | 7,099 | 115K |
| 2 | August 12, 2021 15:00 | August 16, 2021 02:45 | 3d 11h | 5,701 | 139K |
| 3 | February 17, 2021 12:00 | February 17, 2021 19:45 | 7h 45m | 4,550 | 21K |
| 4 | December 11, 2021 14:45 | December 14, 2021 19:15 | 3d 4h | 4,164 | 80K |
| 5 | December 16, 2021 17:30 | December 19, 2021 17:15 | 2d 23h | 3,318 | 112K |
| 6 | August 24, 2021 22:30 | August 27, 2021 03:30 | 2d 5h | 2,925 | 46K |
| 7 | May 5, 2021 17:15 | May 5, 2021 18:45 | 1h 30m | 2,871 | 1,450 |
| 8 | December 16, 2021 12:00 | December 16, 2021 16:30 | 4h 30m | 2,726 | 8,384 |
| 9 | June 11, 2021 19:15 | June 13, 2021 15:45 | 1d 20h | 2,549 | 23K |
| 10 | April 26, 2021 00:00 | April 26, 2021 04:15 | 4h 15m | 2,142 | 8,052 |
Outage episodes by size in 2021: 64 reached 100+ customers, 15 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 Gladwin 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 ÷ 15,201 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. Gladwin County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Gladwin 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/gladwin-county