County annual report · FIPS 26131
2017 Ontonagon County, MI Power Outage Report
In 2017, customers in Ontonagon County, MI went without power for an average of 4.7 hours, a total of 20K customer-hours (Michigan average 6.0 hours). That ranks 43rd worst of 80 Michigan counties and 998th of 2,786 nationally.
Compared with MI, the US and 2016
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Ontonagon County, 2017
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, 2017 06:45 | August 29, 2017 09:00 | 2h 15m | 680 | 1,530 |
| 2 | September 6, 2017 17:15 | September 6, 2017 18:15 | 1h | 678 | 678 |
| 3 | August 22, 2017 18:30 | August 22, 2017 18:45 | 15m | 644 | 161 |
| 4 | October 28, 2017 14:15 | October 29, 2017 20:00 | 1d 5h | 637 | 6,625 |
| 5 | October 31, 2017 14:15 | October 31, 2017 19:45 | 5h 30m | 623 | 1,445 |
| 6 | June 7, 2017 05:30 | June 7, 2017 08:30 | 3h | 618 | 1,854 |
| 7 | March 7, 2017 10:45 | March 8, 2017 20:45 | 1d 10h | 465 | 3,331 |
| 8 | May 17, 2017 01:45 | May 17, 2017 04:00 | 2h 15m | 296 | 592 |
| 9 | June 3, 2017 23:45 | June 4, 2017 00:30 | 45m | 164 | 123 |
| 10 | July 13, 2017 00:45 | July 13, 2017 01:30 | 45m | 145 | 88 |
Outage episodes by size in 2017: 17 reached 100+ customers, 0 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 Ontonagon County reported on EIA Form 861 for 2017, 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 |
|---|---|---|---|---|---|
| Northern States Power Co | 2017 | 4.6 hrs | 1.14 | 1.9 hrs | 0.73 |
| Upper Peninsula Power Company | 2017 | 10.0 hrs | 2.20 | 2.9 hrs | 1.30 |
| Upper Michigan Energy Resources Corp. | 2017 | 9.2 hrs | 1.85 | 2.5 hrs | 0.98 |
| Ontonagon County R E A | - | - | - | - | - |
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 2017; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 4,246 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. Ontonagon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Ontonagon County, MI annual power outage report, 2017, 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/2017/michigan/ontonagon-county