County annual report · FIPS 26045
2025 Eaton County, MI Power Outage Report
In 2025, customers in Eaton County, MI went without power for an average of 15.8 hours, a total of 796K customer-hours (Michigan average 12.9 hours). That ranks 40th worst of 83 Michigan counties and 471st 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 Eaton 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 | May 15, 2025 19:15 | May 22, 2025 00:00 | 6d 4h | 9,066 | 475K |
| 2 | March 30, 2025 22:15 | April 5, 2025 07:30 | 5d 9h | 4,282 | 205K |
| 3 | May 27, 2025 18:15 | May 28, 2025 02:00 | 7h 45m | 1,773 | 3,110 |
| 4 | March 15, 2025 09:00 | March 17, 2025 11:30 | 2d 2h | 1,554 | 17K |
| 5 | June 4, 2025 13:15 | June 4, 2025 17:00 | 3h 45m | 1,265 | 4,099 |
| 6 | August 13, 2025 22:00 | August 14, 2025 00:15 | 2h 15m | 1,251 | 1,617 |
| 7 | July 9, 2025 09:30 | July 10, 2025 16:45 | 1d 7h | 1,155 | 6,214 |
| 8 | March 24, 2025 00:30 | March 24, 2025 06:45 | 6h 15m | 998 | 2,291 |
| 9 | July 27, 2025 23:15 | July 29, 2025 12:45 | 1d 13h | 716 | 4,739 |
| 10 | March 6, 2025 20:00 | March 6, 2025 20:45 | 45m | 681 | 171 |
Outage episodes by size in 2025: 58 reached 100+ customers, 7 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 Eaton 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 |
| Tri-County Electric Coop (MI) | 2024 | 4.0 hrs | 1.00 | 1.8 hrs | 0.86 |
| Wolverine Power Supply Coop | - | - | - | - | - |
| City of Lansing - (MI) | - | - | - | - | - |
| City of Eaton Rapids - (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 ÷ 50,376 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. Eaton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Eaton 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/eaton-county