County annual report · FIPS 26103
2023 Marquette County, MI Power Outage Report
In 2023, customers in Marquette County, MI went without power for an average of 5.7 hours, a total of 256K customer-hours (Michigan average 26.5 hours). That ranks 53rd worst of 83 Michigan counties and 1350th 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 Marquette 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 05:30 | May 4, 2023 23:00 | 3d 17h | 7,903 | 207K |
| 2 | October 8, 2023 21:15 | October 9, 2023 02:00 | 4h 45m | 3,270 | 5,938 |
| 3 | July 4, 2023 20:00 | July 5, 2023 04:30 | 8h 30m | 2,520 | 7,454 |
| 4 | July 20, 2023 22:00 | July 21, 2023 03:15 | 5h 15m | 1,717 | 4,587 |
| 5 | June 2, 2023 13:45 | June 2, 2023 15:00 | 1h 15m | 1,373 | 1,716 |
| 6 | December 18, 2023 09:45 | December 18, 2023 13:15 | 3h 30m | 1,211 | 4,164 |
| 7 | April 16, 2023 14:15 | April 16, 2023 19:15 | 5h | 1,136 | 3,795 |
| 8 | July 28, 2023 00:30 | July 29, 2023 07:45 | 1d 7h | 852 | 5,488 |
| 9 | April 1, 2023 08:15 | April 2, 2023 00:00 | 15h 45m | 445 | 3,788 |
| 10 | April 1, 2023 03:30 | April 1, 2023 05:45 | 2h 15m | 444 | 956 |
Outage episodes by size in 2023: 22 reached 100+ customers, 7 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 Marquette 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 |
| Upper Michigan Energy Resources Corp. | 2023 | 6.1 hrs | 1.32 | 3.1 hrs | 1.01 |
| Alger-Delta Coop Electric Assn | 2023 | 3.2 hrs | 1.04 | 1.8 hrs | 0.80 |
| City of Marquette - (MI) | 2023 | 2.6 hrs | 1.40 | 49 min | 0.82 |
| City of Negaunee | - | - | - | - | - |
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 ÷ 45,262 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. Marquette County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marquette 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/marquette-county