County annual report · FIPS 26125
2021 Oakland County, MI Power Outage Report
In 2021, customers in Oakland County, MI went without power for an average of 41.0 hours, a total of 26.5M customer-hours (Michigan average 26.6 hours). That ranks 20th worst of 83 Michigan counties and 216th 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 Oakland 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 | May 16, 2021 06:45 | October 21, 2021 01:45 | 157d 19h | 159,871 | 24.8M |
| 2 | December 5, 2021 12:00 | December 27, 2021 04:30 | 21d 16h | 36,269 | 962K |
| 3 | January 1, 2021 00:00 | January 4, 2021 18:15 | 3d 18h | 9,529 | 33K |
| 4 | April 8, 2021 07:15 | April 14, 2021 09:30 | 6d 2h | 8,199 | 63K |
| 5 | October 21, 2021 05:00 | November 7, 2021 19:45 | 17d 14h | 7,590 | 116K |
| 6 | March 25, 2021 12:15 | April 5, 2021 05:15 | 10d 17h | 6,634 | 125K |
| 7 | November 8, 2021 17:00 | November 28, 2021 02:30 | 19d 9h | 6,528 | 136K |
| 8 | April 26, 2021 13:45 | May 6, 2021 10:15 | 9d 20h | 4,861 | 60K |
| 9 | March 18, 2021 10:45 | March 22, 2021 01:30 | 3d 14h | 4,426 | 33K |
| 10 | March 22, 2021 13:15 | March 25, 2021 06:30 | 2d 17h | 4,218 | 18K |
Outage episodes by size in 2021: 45 reached 100+ customers, 24 reached 1,000+ customers, 2 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 Oakland 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 |
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 ÷ 646,293 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. Oakland County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Oakland 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/oakland-county