County annual report · FIPS 26161
2016 Washtenaw County, MI Power Outage Report
In 2016, customers in Washtenaw County, MI went without power for an average of 1.0 hours, a total of 200K customer-hours (Michigan average 2.0 hours). That ranks 65th worst of 80 Michigan counties and 1766th of 2,391 nationally.
Compared with MI, the US and 2015
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Washtenaw County, 2016
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 19, 2016 06:15 | February 24, 2016 05:15 | 4d 23h | 5,519 | 102K |
| 2 | January 9, 2016 19:15 | January 12, 2016 11:30 | 2d 16h | 4,806 | 49K |
| 3 | January 19, 2016 08:30 | January 20, 2016 04:15 | 19h 45m | 4,429 | 14K |
| 4 | January 31, 2016 14:15 | February 1, 2016 10:45 | 20h 30m | 1,885 | 7,014 |
| 5 | February 2, 2016 14:00 | February 4, 2016 09:00 | 1d 19h | 1,166 | 2,908 |
| 6 | January 14, 2016 16:15 | January 15, 2016 10:45 | 18h 30m | 924 | 1,648 |
| 7 | January 5, 2016 15:00 | January 6, 2016 03:15 | 12h 15m | 782 | 1,397 |
| 8 | July 14, 2016 11:45 | July 14, 2016 18:30 | 6h 45m | 765 | 2,547 |
| 9 | February 24, 2016 15:15 | February 25, 2016 03:45 | 12h 30m | 695 | 5,929 |
| 10 | June 18, 2016 02:45 | June 18, 2016 09:45 | 7h | 430 | 2,179 |
Outage episodes by size in 2016: 22 reached 100+ customers, 5 reached 1,000+ customers, 0 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 Washtenaw County reported on EIA Form 861 for 2016, 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) | 2016 | 4.7 hrs | 1.15 | 3.5 hrs | 1.01 |
| DTE Electric Company | 2016 | 4.0 hrs | 0.99 | 3.0 hrs | 0.91 |
| Village of Clinton - (MI) | - | - | - | - | - |
| Village of Chelsea - (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 n/a of Michigan's customers in 2016; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 195,553 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. Washtenaw County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washtenaw County, MI annual power outage report, 2016, 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/2016/michigan/washtenaw-county