County annual report · FIPS 26063
2021 Huron County, MI Power Outage Report
In 2021, customers in Huron County, MI went without power for an average of 112.6 hours, a total of 1.2M customer-hours (Michigan average 26.6 hours). That ranks 3rd worst of 83 Michigan counties and 64th 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 Huron 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 | September 22, 2021 02:00 | October 21, 2021 01:45 | 28d 23h | 12,463 | 662K |
| 2 | December 11, 2021 12:30 | December 16, 2021 10:30 | 4d 22h | 5,964 | 181K |
| 3 | June 26, 2021 22:15 | June 30, 2021 16:30 | 3d 18h | 3,686 | 96K |
| 4 | November 22, 2021 01:15 | November 23, 2021 02:45 | 1d 1h | 3,469 | 10K |
| 5 | August 27, 2021 13:00 | August 31, 2021 17:30 | 4d 4h | 3,379 | 91K |
| 6 | September 7, 2021 19:45 | September 10, 2021 01:00 | 2d 5h | 3,159 | 81K |
| 7 | May 20, 2021 04:45 | May 20, 2021 06:45 | 2h | 2,138 | 2,554 |
| 8 | April 12, 2021 20:00 | April 13, 2021 03:00 | 7h | 1,611 | 4,944 |
| 9 | August 11, 2021 05:30 | August 11, 2021 20:45 | 15h 15m | 1,137 | 12K |
| 10 | July 18, 2021 13:15 | July 18, 2021 16:15 | 3h | 1,023 | 2,056 |
Outage episodes by size in 2021: 38 reached 100+ customers, 10 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 Huron 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 |
|---|---|---|---|---|---|
| DTE Electric Company | 2021 | 15.5 hrs | 1.58 | 2.3 hrs | 0.92 |
| Thumb Electric Coop of Mich | - | - | - | - | - |
| Village of Sebewaing - (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 ÷ 10,545 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. Huron County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Huron 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/huron-county