County annual report · FIPS 26065
2015 Ingham County, MI Power Outage Report
In 2015, customers in Ingham County, MI went without power for an average of 0.8 hours, a total of 153K customer-hours (Michigan average 6.8 hours). That ranks 79th worst of 80 Michigan counties and 1863rd of 2,484 nationally.
Compared with MI, the US
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Ingham County, 2015
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, 2015 08:00 | August 11, 2015 14:45 | 6h 45m | 9,220 | 25K |
| 2 | September 7, 2015 12:45 | September 8, 2015 21:00 | 1d 8h | 2,860 | 12K |
| 3 | March 26, 2015 20:45 | March 26, 2015 23:30 | 2h 45m | 2,848 | 7,832 |
| 4 | July 7, 2015 08:45 | July 8, 2015 09:00 | 1d | 2,728 | 4,816 |
| 5 | June 27, 2015 15:00 | June 28, 2015 21:45 | 1d 6h | 1,974 | 3,273 |
| 6 | November 18, 2015 15:45 | November 20, 2015 01:30 | 1d 9h | 1,813 | 9,785 |
| 7 | October 21, 2015 22:30 | October 22, 2015 06:00 | 7h 30m | 1,726 | 3,251 |
| 8 | October 22, 2015 13:00 | October 22, 2015 15:15 | 2h 15m | 1,681 | 422 |
| 9 | July 18, 2015 13:30 | July 19, 2015 01:45 | 12h 15m | 1,461 | 3,560 |
| 10 | September 19, 2015 02:45 | September 20, 2015 03:00 | 1d | 1,460 | 2,047 |
Outage episodes by size in 2015: 74 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 Ingham County reported on EIA Form 861 for 2015, 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) | 2015 | 7.3 hrs | 1.18 | 3.0 hrs | 0.98 |
| DTE Electric Company | 2015 | 4.6 hrs | 1.00 | 3.1 hrs | 0.91 |
| Tri-County Electric Coop (MI) | 2015 | 4.7 hrs | 1.68 | 3.0 hrs | 1.49 |
| 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 2015; 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, 2015, 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/2015/michigan/ingham-county