County annual report · FIPS 26069
2015 Iosco County, MI Power Outage Report
In 2015, customers in Iosco County, MI went without power for an average of 39.3 hours, a total of 563K customer-hours (Michigan average 6.8 hours). That ranks 12th worst of 80 Michigan counties and 61st of 2,484 nationally.
Compared with MI, the US
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Iosco County, 2015
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 2, 2015 18:00 | August 4, 2015 17:45 | 1d 23h | 5,051 | 190K |
| 2 | August 4, 2015 18:30 | August 5, 2015 03:15 | 8h 45m | 4,600 | 29K |
| 3 | December 24, 2015 08:30 | December 28, 2015 18:15 | 4d 9h | 3,967 | 207K |
| 4 | August 20, 2015 18:30 | August 21, 2015 01:15 | 6h 45m | 3,756 | 11K |
| 5 | August 10, 2015 15:30 | August 10, 2015 16:15 | 45m | 2,343 | 1,757 |
| 6 | May 8, 2015 20:15 | May 9, 2015 00:15 | 4h | 1,810 | 5,754 |
| 7 | August 5, 2015 04:30 | August 6, 2015 07:00 | 1d 2h | 1,749 | 23K |
| 8 | October 28, 2015 09:45 | October 28, 2015 22:00 | 12h 15m | 1,680 | 8,279 |
| 9 | November 18, 2015 20:45 | November 20, 2015 03:00 | 1d 6h | 1,441 | 9,780 |
| 10 | June 8, 2015 21:30 | June 9, 2015 08:15 | 10h 45m | 1,411 | 8,698 |
Outage episodes by size in 2015: 51 reached 100+ customers, 12 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 2015, 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) | 2015 | 7.3 hrs | 1.18 | 3.0 hrs | 0.98 |
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 2015; 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, 2015, 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/2015/michigan/iosco-county