County annual report · FIPS 26065
2025 Ingham County, MI Power Outage Report
In 2025, customers in Ingham County, MI went without power for an average of 9.6 hours, a total of 1.8M customer-hours (Michigan average 12.9 hours). That ranks 52nd worst of 83 Michigan counties and 827th 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 Ingham 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 16, 2025 03:15 | May 22, 2025 21:00 | 6d 17h | 35,847 | 964K |
| 2 | March 30, 2025 21:30 | April 5, 2025 21:15 | 5d 23h | 15,881 | 451K |
| 3 | July 7, 2025 21:30 | July 8, 2025 03:30 | 6h | 5,321 | 11K |
| 4 | February 6, 2025 19:45 | February 7, 2025 01:00 | 5h 15m | 4,690 | 8,510 |
| 5 | October 13, 2025 12:15 | October 13, 2025 19:00 | 6h 45m | 4,663 | 1,193 |
| 6 | June 18, 2025 12:15 | June 20, 2025 09:45 | 1d 21h | 4,220 | 33K |
| 7 | August 16, 2025 11:00 | August 16, 2025 20:30 | 9h 30m | 3,933 | 20K |
| 8 | January 31, 2025 08:45 | February 1, 2025 07:45 | 23h | 3,412 | 2,303 |
| 9 | June 24, 2025 07:15 | June 26, 2025 08:00 | 2d | 2,924 | 14K |
| 10 | July 3, 2025 19:30 | July 4, 2025 18:00 | 22h 30m | 2,758 | 5,919 |
Outage episodes by size in 2025: 136 reached 100+ customers, 44 reached 1,000+ customers, 2 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 Ingham 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 |
| Wolverine Power Supply Coop | - | - | - | - | - |
| City of Lansing - (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 ÷ 187,698 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. Ingham County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ingham 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/ingham-county