County annual report · FIPS 26073
2016 Isabella County, MI Power Outage Report
In 2016, customers in Isabella County, MI went without power for an average of 1.0 hours, a total of 37K customer-hours (Michigan average 2.0 hours). That ranks 67th worst of 80 Michigan counties and 1778th 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 Isabella 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 | March 24, 2016 11:15 | March 26, 2016 06:00 | 1d 18h | 1,428 | 12K |
| 2 | July 8, 2016 00:30 | July 8, 2016 23:15 | 22h 45m | 859 | 4,999 |
| 3 | February 24, 2016 20:15 | February 26, 2016 01:30 | 1d 5h | 856 | 9,667 |
| 4 | March 16, 2016 06:15 | March 16, 2016 17:15 | 11h | 373 | 776 |
| 5 | April 2, 2016 21:30 | April 2, 2016 23:45 | 2h 15m | 372 | 651 |
| 6 | July 24, 2016 12:15 | July 24, 2016 14:45 | 2h 30m | 340 | 357 |
| 7 | May 21, 2016 17:00 | May 21, 2016 20:00 | 3h | 276 | 568 |
| 8 | July 5, 2016 12:45 | July 5, 2016 15:15 | 2h 30m | 189 | 451 |
| 9 | March 28, 2016 14:45 | March 28, 2016 18:00 | 3h 15m | 175 | 329 |
| 10 | February 4, 2016 15:45 | February 4, 2016 18:45 | 3h | 166 | 458 |
Outage episodes by size in 2016: 18 reached 100+ customers, 1 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 Isabella 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 |
| Tri-County Electric Coop (MI) | 2016 | 8.7 hrs | 1.79 | 3.0 hrs | 1.46 |
| Wolverine Power Supply Coop | - | - | - | - | - |
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 ÷ 36,507 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. Isabella County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Isabella 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/isabella-county