County annual report · FIPS 26115
2021 Monroe County, MI Power Outage Report
In 2021, customers in Monroe County, MI went without power for an average of 65.1 hours, a total of 3.1M customer-hours (Michigan average 26.6 hours). That ranks 8th worst of 83 Michigan counties and 125th 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 Monroe 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 8, 2021 20:00 | August 19, 2021 11:30 | 10d 15h | 29,923 | 2.1M |
| 2 | October 13, 2021 16:45 | October 21, 2021 01:45 | 7d 9h | 15,676 | 57K |
| 3 | December 11, 2021 07:45 | December 21, 2021 14:00 | 10d 6h | 14,239 | 466K |
| 4 | June 20, 2021 11:15 | June 24, 2021 18:15 | 4d 7h | 4,983 | 103K |
| 5 | March 30, 2021 16:15 | March 31, 2021 02:00 | 9h 45m | 4,350 | 26K |
| 6 | March 12, 2021 14:30 | March 13, 2021 18:30 | 1d 4h | 3,885 | 14K |
| 7 | September 14, 2021 08:30 | September 16, 2021 01:30 | 1d 17h | 3,387 | 36K |
| 8 | August 19, 2021 12:30 | September 2, 2021 13:30 | 14d 1h | 3,379 | 41K |
| 9 | November 3, 2021 22:45 | November 5, 2021 10:15 | 1d 11h | 3,039 | 11K |
| 10 | February 2, 2021 05:15 | February 2, 2021 15:30 | 10h 15m | 2,653 | 18K |
Outage episodes by size in 2021: 80 reached 100+ customers, 21 reached 1,000+ customers, 3 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 Monroe 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 |
| Midwest Energy Cooperative - (MI) | 2014 | 9.8 hrs | 2.23 | 4.9 hrs | 1.87 |
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 ÷ 47,260 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. Monroe County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Monroe 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/monroe-county