County annual report · FIPS 26037
2021 Clinton County, MI Power Outage Report
In 2021, customers in Clinton County, MI went without power for an average of 4.8 hours, a total of 162K customer-hours (Michigan average 26.6 hours). That ranks 73rd worst of 83 Michigan counties and 1371st of 2,974 nationally.
Compared with MI, the US and 2020
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Clinton County, 2021
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | November 12, 2021 17:30 | November 13, 2021 01:00 | 7h 30m | 5,954 | 15K |
| 2 | June 11, 2021 13:15 | June 13, 2021 20:00 | 2d 6h | 2,077 | 23K |
| 3 | August 11, 2021 00:45 | August 12, 2021 00:00 | 23h 15m | 1,679 | 15K |
| 4 | September 16, 2021 15:15 | September 16, 2021 18:30 | 3h 15m | 1,394 | 2,788 |
| 5 | August 17, 2021 13:00 | August 17, 2021 18:45 | 5h 45m | 1,279 | 6,710 |
| 6 | December 19, 2021 05:15 | December 19, 2021 10:00 | 4h 45m | 1,276 | 6,061 |
| 7 | December 11, 2021 13:45 | December 14, 2021 08:15 | 2d 18h | 1,183 | 28K |
| 8 | January 3, 2021 14:00 | January 3, 2021 23:00 | 9h | 1,152 | 1,192 |
| 9 | August 1, 2021 08:45 | August 1, 2021 17:00 | 8h 15m | 1,147 | 3,427 |
| 10 | July 2, 2021 13:15 | July 3, 2021 01:45 | 12h 30m | 1,068 | 6,092 |
Outage episodes by size in 2021: 44 reached 100+ customers, 11 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 Clinton County reported on EIA Form 861 for 2021, 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) | 2021 | 15.2 hrs | 1.60 | 3.8 hrs | 1.05 |
| Tri-County Electric Coop (MI) | 2021 | 6.3 hrs | 1.63 | 2.5 hrs | 1.12 |
| 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 95% of Michigan's customers in 2021; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 34,028 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. Clinton County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Clinton County, MI annual power outage report, 2021, 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/2021/michigan/clinton-county