County annual report · FIPS 26069
2020 Iosco County, MI Power Outage Report
In 2020, customers in Iosco County, MI went without power for an average of 39.4 hours, a total of 564K customer-hours (Michigan average 9.8 hours). That ranks 5th worst of 83 Michigan counties and 205th of 3,019 nationally.
Compared with MI, the US and 2019
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Iosco County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 19, 2020 11:45 | July 22, 2020 01:30 | 2d 13h | 9,443 | 298K |
| 2 | November 15, 2020 10:15 | November 18, 2020 00:00 | 2d 13h | 4,310 | 56K |
| 3 | December 8, 2020 15:00 | December 8, 2020 21:15 | 6h 15m | 4,223 | 20K |
| 4 | September 24, 2020 14:00 | September 25, 2020 09:00 | 19h | 3,746 | 30K |
| 5 | October 17, 2020 15:00 | October 17, 2020 22:45 | 7h 45m | 2,928 | 5,247 |
| 6 | May 29, 2020 00:30 | May 29, 2020 02:15 | 1h 45m | 2,894 | 4,339 |
| 7 | December 12, 2020 05:15 | December 15, 2020 03:45 | 2d 22h | 1,996 | 49K |
| 8 | November 1, 2020 13:45 | November 3, 2020 19:30 | 2d 5h | 1,502 | 17K |
| 9 | January 11, 2020 10:45 | January 11, 2020 23:30 | 12h 45m | 1,424 | 7,108 |
| 10 | June 10, 2020 04:30 | June 15, 2020 04:45 | 5d | 1,424 | 17K |
Outage episodes by size in 2020: 58 reached 100+ customers, 10 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 2020, 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) | 2020 | 8.5 hrs | 1.35 | 3.2 hrs | 1.03 |
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 2020; 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, 2020, 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/2020/michigan/iosco-county