County annual report · FIPS 26057
2025 Gratiot County, MI Power Outage Report
In 2025, customers in Gratiot County, MI went without power for an average of 2.4 hours, a total of 50K customer-hours (Michigan average 12.9 hours). That ranks 81st worst of 83 Michigan counties and 2277th of 3,000 nationally.
Compared with MI, the US and 2024
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Gratiot County, 2025
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 19, 2025 19:00 | August 20, 2025 01:45 | 6h 45m | 835 | 848 |
| 2 | August 13, 2025 22:15 | August 14, 2025 00:30 | 2h 15m | 832 | 1,872 |
| 3 | December 26, 2025 13:45 | December 27, 2025 18:15 | 1d 4h | 747 | 14K |
| 4 | May 1, 2025 05:30 | May 1, 2025 13:30 | 8h | 498 | 3,810 |
| 5 | December 28, 2025 16:15 | December 28, 2025 19:00 | 2h 45m | 479 | 300 |
| 6 | September 2, 2025 16:45 | September 2, 2025 17:15 | 30m | 407 | 107 |
| 7 | July 17, 2025 02:00 | July 17, 2025 09:00 | 7h | 297 | 825 |
| 8 | June 17, 2025 18:00 | June 17, 2025 21:15 | 3h 15m | 292 | 910 |
| 9 | June 21, 2025 19:45 | June 23, 2025 18:00 | 1d 22h | 289 | 1,416 |
| 10 | March 30, 2025 23:00 | April 4, 2025 09:45 | 4d 10h | 221 | 7,037 |
Outage episodes by size in 2025: 20 reached 100+ customers, 0 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 Gratiot County reported on EIA Form 861 for 2025, 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 |
| DTE Electric Company | 2024 | 8.0 hrs | 1.25 | 2.7 hrs | 0.94 |
| Tri-County Electric Coop (MI) | 2024 | 4.0 hrs | 1.00 | 1.8 hrs | 0.86 |
| City of St Louis - (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 2025; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 21,004 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. Gratiot County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Gratiot County, MI annual power outage report, 2025, 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/2025/michigan/gratiot-county