County annual report · FIPS 26143
2018 Roscommon County, MI Power Outage Report
In 2018, customers in Roscommon County, MI went without power for an average of 42.9 hours, a total of 591K customer-hours (Michigan average 10.0 hours). That ranks 6th worst of 80 Michigan counties and 136th 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 Roscommon 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 | August 29, 2018 00:30 | September 2, 2018 07:15 | 4d 6h | 12,056 | 433K |
| 2 | February 17, 2018 04:15 | February 17, 2018 10:15 | 6h | 6,397 | 3,212 |
| 3 | July 13, 2018 19:00 | July 15, 2018 20:30 | 2d 1h | 4,174 | 70K |
| 4 | August 10, 2018 01:00 | August 10, 2018 01:45 | 45m | 2,913 | 1,447 |
| 5 | June 17, 2018 07:45 | June 17, 2018 10:15 | 2h 30m | 1,410 | 2,555 |
| 6 | October 12, 2018 03:45 | October 12, 2018 06:30 | 2h 45m | 1,392 | 3,828 |
| 7 | June 11, 2018 10:30 | June 11, 2018 12:45 | 2h 15m | 1,285 | 2,891 |
| 8 | September 5, 2018 16:30 | September 7, 2018 00:30 | 1d 8h | 1,184 | 9,967 |
| 9 | July 1, 2018 21:30 | July 2, 2018 16:00 | 18h 30m | 1,066 | 3,972 |
| 10 | November 25, 2018 00:45 | November 25, 2018 03:15 | 2h 30m | 1,026 | 2,565 |
Outage episodes by size in 2018: 60 reached 100+ customers, 10 reached 1,000+ customers, 1 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 Roscommon 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 ÷ 13,780 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. Roscommon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Roscommon 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/roscommon-county