County annual report · FIPS 26155
2024 Shiawassee County, MI Power Outage Report
In 2024, customers in Shiawassee County, MI went without power for an average of 7.6 hours, a total of 316K customer-hours (Michigan average 8.5 hours). That ranks 37th worst of 83 Michigan counties and 1170th of 2,990 nationally.
Compared with MI, the US and 2023
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Shiawassee County, 2024
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 27, 2024 11:15 | August 31, 2024 01:45 | 3d 14h | 4,894 | 156K |
| 2 | December 22, 2024 10:45 | December 22, 2024 12:45 | 2h | 4,711 | 7,026 |
| 3 | December 10, 2024 14:00 | December 10, 2024 19:00 | 5h | 4,215 | 6,654 |
| 4 | July 15, 2024 07:45 | July 16, 2024 00:00 | 16h 15m | 3,974 | 15K |
| 5 | June 11, 2024 23:30 | June 12, 2024 02:45 | 3h 15m | 2,512 | 6,278 |
| 6 | January 12, 2024 21:45 | January 15, 2024 20:30 | 2d 22h | 1,746 | 40K |
| 7 | February 28, 2024 05:15 | February 28, 2024 15:30 | 10h 15m | 1,428 | 5,068 |
| 8 | May 24, 2024 13:30 | May 24, 2024 18:00 | 4h 30m | 1,132 | 2,112 |
| 9 | March 6, 2024 00:30 | March 6, 2024 14:15 | 13h 45m | 968 | 4,826 |
| 10 | June 5, 2024 16:00 | June 6, 2024 08:00 | 16h | 963 | 2,712 |
Outage episodes by size in 2024: 43 reached 100+ customers, 8 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 Shiawassee County reported on EIA Form 861 for 2024, 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 |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 41,361 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. Shiawassee County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Shiawassee County, MI annual power outage report, 2024, 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/2024/michigan/shiawassee-county