County annual report · FIPS 26083
2018 Keweenaw County, MI Power Outage Report
In 2018, customers in Keweenaw County, MI went without power for an average of 4.4 hours, a total of 5,930 customer-hours (Michigan average 10.0 hours). That ranks 48th worst of 80 Michigan counties and 1159th 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 Keweenaw 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 31, 2018 16:45 | August 31, 2018 18:00 | 1h 15m | 974 | 756 |
| 2 | October 4, 2018 05:15 | October 4, 2018 07:15 | 2h | 865 | 1,526 |
| 3 | November 9, 2018 23:00 | November 10, 2018 08:15 | 9h 15m | 421 | 1,514 |
| 4 | September 21, 2018 13:15 | September 21, 2018 18:00 | 4h 45m | 407 | 408 |
| 5 | March 16, 2018 15:30 | March 16, 2018 16:30 | 1h | 304 | 304 |
| 6 | August 28, 2018 01:30 | August 28, 2018 03:15 | 1h 45m | 304 | 441 |
| 7 | August 28, 2018 04:45 | August 28, 2018 05:00 | 15m | 304 | 76 |
| 8 | October 7, 2018 05:00 | October 7, 2018 09:30 | 4h 30m | 86 | 366 |
| 9 | July 12, 2018 11:15 | July 12, 2018 13:00 | 1h 45m | 85 | 87 |
| 10 | November 8, 2018 15:45 | November 8, 2018 16:15 | 30m | 85 | 43 |
Outage episodes by size in 2018: 7 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 Keweenaw 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 |
|---|---|---|---|---|---|
| Upper Peninsula Power Company | 2018 | 2.3 hrs | 1.16 | 2.3 hrs | 1.16 |
| 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 91% of Michigan's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 1,356 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. Keweenaw County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Keweenaw 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/keweenaw-county