County annual report · FIPS 26099
2020 Macomb County, MI Power Outage Report
In 2020, customers in Macomb County, MI went without power for an average of 5.8 hours, a total of 2.4M customer-hours (Michigan average 9.8 hours). That ranks 62nd worst of 83 Michigan counties and 1264th of 3,019 nationally.
Compared with MI, the US and 2019
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Macomb County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 12, 2020 04:45 | February 13, 2020 05:30 | 1d | 38,950 | 10K |
| 2 | May 24, 2020 12:45 | June 2, 2020 17:00 | 9d 4h | 37,021 | 335K |
| 3 | June 2, 2020 17:45 | June 10, 2020 20:30 | 8d 2h | 29,407 | 75K |
| 4 | November 14, 2020 13:15 | November 17, 2020 04:45 | 2d 15h | 25,201 | 529K |
| 5 | October 12, 2020 11:00 | October 26, 2020 09:45 | 13d 22h | 16,834 | 105K |
| 6 | November 5, 2020 13:15 | November 6, 2020 05:30 | 16h 15m | 11,802 | 22K |
| 7 | July 14, 2020 12:00 | July 24, 2020 09:15 | 9d 21h | 8,797 | 194K |
| 8 | May 8, 2020 00:00 | May 8, 2020 04:45 | 4h 45m | 7,875 | 5,150 |
| 9 | March 9, 2020 13:15 | March 11, 2020 22:15 | 2d 9h | 7,616 | 15K |
| 10 | June 30, 2020 10:15 | July 14, 2020 07:15 | 13d 21h | 7,488 | 284K |
Outage episodes by size in 2020: 126 reached 100+ customers, 58 reached 1,000+ customers, 6 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 Macomb County reported on EIA Form 861 for 2020, 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 | 2020 | 5.9 hrs | 1.29 | 2.4 hrs | 1.01 |
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 2020; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 404,553 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. Macomb County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Macomb County, MI annual power outage report, 2020, 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/2020/michigan/macomb-county