County annual report · FIPS 26083
2023 Keweenaw County, MI Power Outage Report
In 2023, customers in Keweenaw County, MI went without power for an average of 19.2 hours, a total of 26K customer-hours (Michigan average 26.5 hours). That ranks 18th worst of 83 Michigan counties and 428th of 2,977 nationally.
Compared with MI, the US and 2022
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Keweenaw County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | May 1, 2023 06:15 | May 1, 2023 10:00 | 3h 45m | 1,547 | 471 |
| 2 | April 17, 2023 01:15 | April 17, 2023 10:15 | 9h | 1,542 | 4,351 |
| 3 | April 18, 2023 09:00 | April 18, 2023 12:45 | 3h 45m | 1,542 | 5,399 |
| 4 | April 16, 2023 14:15 | April 16, 2023 18:15 | 4h | 1,223 | 4,124 |
| 5 | November 13, 2023 03:00 | November 13, 2023 08:45 | 5h 45m | 572 | 1,724 |
| 6 | December 15, 2023 00:15 | December 15, 2023 08:45 | 8h 30m | 569 | 4,554 |
| 7 | August 10, 2023 13:00 | August 10, 2023 16:15 | 3h 15m | 426 | 1,382 |
| 8 | January 16, 2023 00:45 | January 16, 2023 05:30 | 4h 45m | 424 | 1,911 |
| 9 | May 2, 2023 11:45 | May 2, 2023 19:30 | 7h 45m | 314 | 437 |
| 10 | April 19, 2023 02:00 | April 19, 2023 02:45 | 45m | 293 | 220 |
Outage episodes by size in 2023: 13 reached 100+ customers, 4 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 2023, 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 | 2023 | 7.1 hrs | 1.58 | 2.3 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 2023; 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, 2023, 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/2023/michigan/keweenaw-county