County annual report · FIPS 26163
2021 Wayne County, MI Power Outage Report
In 2021, customers in Wayne County, MI went without power for an average of 79.4 hours, a total of 35.1M customer-hours (Michigan average 26.6 hours). That ranks 5th worst of 83 Michigan counties and 101st 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 Wayne 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 11, 2021 22:15 | October 21, 2021 01:45 | 70d 3h | 265,444 | 24.4M |
| 2 | November 8, 2021 17:00 | December 31, 2021 00:15 | 52d 7h | 68,839 | 2.9M |
| 3 | April 5, 2021 06:00 | August 11, 2021 20:45 | 128d 14h | 50,529 | 7.1M |
| 4 | March 7, 2021 03:45 | April 5, 2021 05:15 | 29d 1h | 12,435 | 299K |
| 5 | October 21, 2021 05:00 | November 7, 2021 19:45 | 17d 14h | 10,325 | 138K |
| 6 | January 7, 2021 13:15 | January 11, 2021 02:45 | 3d 13h | 7,133 | 9,320 |
| 7 | January 19, 2021 12:30 | March 7, 2021 03:00 | 46d 14h | 5,396 | 143K |
| 8 | January 4, 2021 19:00 | January 7, 2021 10:45 | 2d 15h | 3,709 | 9,497 |
| 9 | January 1, 2021 00:00 | January 4, 2021 18:15 | 3d 18h | 2,172 | 18K |
| 10 | January 11, 2021 03:30 | January 19, 2021 11:15 | 8d 7h | 1,802 | 14K |
Outage episodes by size in 2021: 11 reached 100+ customers, 10 reached 1,000+ customers, 5 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 Wayne 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 |
| Wyandotte Municipal Serv Comm | - | - | - | - | - |
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 ÷ 441,528 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. Wayne County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Wayne 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/wayne-county