County annual report · FIPS 26131
2019 Ontonagon County, MI Power Outage Report
In 2019, customers in Ontonagon County, MI went without power for an average of 4.3 hours, a total of 18K customer-hours (Michigan average 12.7 hours). That ranks 66th worst of 83 Michigan counties and 1251st of 2,945 nationally.
Compared with MI, the US and 2018
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Ontonagon County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | February 24, 2019 19:30 | February 25, 2019 02:15 | 6h 45m | 1,561 | 2,126 |
| 2 | October 8, 2019 17:00 | October 8, 2019 17:15 | 15m | 1,391 | 348 |
| 3 | October 1, 2019 18:30 | October 2, 2019 00:15 | 5h 45m | 1,015 | 5,334 |
| 4 | September 3, 2019 05:45 | September 3, 2019 09:15 | 3h 30m | 660 | 1,897 |
| 5 | December 2, 2019 04:45 | December 2, 2019 20:00 | 15h 15m | 637 | 5,468 |
| 6 | December 17, 2019 17:15 | December 17, 2019 17:30 | 15m | 517 | 129 |
| 7 | May 4, 2019 22:45 | May 5, 2019 02:15 | 3h 30m | 142 | 239 |
| 8 | November 27, 2019 11:15 | November 28, 2019 17:30 | 1d 6h | 129 | 415 |
| 9 | April 12, 2019 00:15 | April 12, 2019 08:15 | 8h | 86 | 345 |
| 10 | September 25, 2019 01:30 | September 25, 2019 06:00 | 4h 30m | 86 | 387 |
Outage episodes by size in 2019: 8 reached 100+ customers, 3 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 2019, 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 | 2018 | 2.9 hrs | 0.94 | 1.8 hrs | 0.69 |
| Upper Peninsula Power Company | 2018 | 2.3 hrs | 1.16 | 2.3 hrs | 1.16 |
| Upper Michigan Energy Resources Corp. | 2018 | 4.1 hrs | 1.16 | 2.4 hrs | 0.91 |
| 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 96% of Michigan's customers in 2019; 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, 2019, 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/2019/michigan/ontonagon-county