County annual report · FIPS 26069
2018 Iosco County, MI Power Outage Report
In 2018, customers in Iosco County, MI went without power for an average of 12.0 hours, a total of 172K customer-hours (Michigan average 10.0 hours). That ranks 21st worst of 80 Michigan counties and 464th of 2,798 nationally.
Compared with MI, the US and 2017
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Iosco County, 2018
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 27, 2018 19:15 | May 29, 2018 05:45 | 1d 10h | 3,123 | 29K |
| 2 | August 21, 2018 15:15 | August 21, 2018 16:15 | 1h | 1,786 | 1,786 |
| 3 | August 29, 2018 02:00 | September 2, 2018 00:30 | 3d 22h | 1,543 | 65K |
| 4 | October 11, 2018 10:00 | October 11, 2018 14:15 | 4h 15m | 1,425 | 5,384 |
| 5 | May 19, 2018 13:45 | May 19, 2018 17:30 | 3h 45m | 1,062 | 3,052 |
| 6 | October 15, 2018 19:00 | October 15, 2018 22:15 | 3h 15m | 867 | 2,474 |
| 7 | April 14, 2018 08:30 | April 16, 2018 11:30 | 2d 3h | 845 | 14K |
| 8 | July 16, 2018 18:00 | July 17, 2018 03:15 | 9h 15m | 831 | 1,698 |
| 9 | March 29, 2018 15:45 | March 30, 2018 03:45 | 12h | 795 | 5,869 |
| 10 | October 20, 2018 22:15 | October 21, 2018 09:15 | 11h | 788 | 2,268 |
Outage episodes by size in 2018: 37 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 Iosco County reported on EIA Form 861 for 2018, 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) | 2018 | 6.8 hrs | 1.29 | 3.3 hrs | 1.02 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 91% of Michigan's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 14,310 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. Iosco County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Iosco County, MI annual power outage report, 2018, 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/2018/michigan/iosco-county