County annual report · FIPS 26023
2021 Branch County, MI Power Outage Report
In 2021, customers in Branch County, MI went without power for an average of 40.4 hours, a total of 1.2M customer-hours (Michigan average 26.6 hours). That ranks 21st worst of 83 Michigan counties and 218th 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 Branch 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 | August 12, 2021 15:00 | August 19, 2021 08:30 | 6d 17h | 12,027 | 903K |
| 2 | August 6, 2021 22:15 | August 9, 2021 04:15 | 2d 6h | 4,716 | 151K |
| 3 | August 11, 2021 17:45 | August 11, 2021 22:30 | 4h 45m | 3,154 | 12K |
| 4 | June 21, 2021 00:30 | June 23, 2021 02:15 | 2d 1h | 2,531 | 67K |
| 5 | December 11, 2021 01:45 | December 13, 2021 01:45 | 2d | 1,809 | 26K |
| 6 | October 8, 2021 10:30 | October 9, 2021 09:15 | 22h 45m | 1,463 | 7,896 |
| 7 | February 13, 2021 07:15 | February 13, 2021 08:00 | 45m | 1,100 | 550 |
| 8 | September 7, 2021 18:30 | September 9, 2021 20:30 | 2d 2h | 1,051 | 20K |
| 9 | August 29, 2021 22:00 | August 30, 2021 19:15 | 21h 15m | 1,021 | 6,609 |
| 10 | May 12, 2021 14:30 | May 12, 2021 17:45 | 3h 15m | 743 | 585 |
Outage episodes by size in 2021: 46 reached 100+ customers, 9 reached 1,000+ customers, 1 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 Branch 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 |
| DTE Electric Company | 2021 | 15.5 hrs | 1.58 | 2.3 hrs | 0.92 |
| Coldwater Board of Public Util | 2021 | 17 min | 0.09 | 17 min | 0.09 |
| Village of Union City - (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 ÷ 30,687 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. Branch County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Branch 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/branch-county