County annual report · FIPS 26103
2020 Marquette County, MI Power Outage Report
In 2020, customers in Marquette County, MI went without power for an average of 1.3 hours, a total of 59K customer-hours (Michigan average 9.8 hours). That ranks 83rd worst of 83 Michigan counties and 2539th of 3,019 nationally.
Compared with MI, the US and 2019
Coverage line is EAGLE-I's share of Michigan customers tracked each year.
Biggest outages in Marquette County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 7, 2020 00:00 | October 7, 2020 03:45 | 3h 45m | 2,535 | 2,939 |
| 2 | September 3, 2020 16:45 | September 4, 2020 09:15 | 16h 30m | 1,726 | 4,242 |
| 3 | August 28, 2020 14:00 | August 28, 2020 14:15 | 15m | 1,500 | 375 |
| 4 | August 27, 2020 17:15 | August 27, 2020 19:15 | 2h | 1,499 | 376 |
| 5 | August 10, 2020 03:15 | August 11, 2020 02:30 | 23h 15m | 1,371 | 9,262 |
| 6 | July 9, 2020 03:00 | July 9, 2020 07:15 | 4h 15m | 1,364 | 4,944 |
| 7 | March 12, 2020 17:45 | March 12, 2020 21:00 | 3h 15m | 1,238 | 1,400 |
| 8 | November 19, 2020 13:00 | November 19, 2020 22:30 | 9h 30m | 1,224 | 6,797 |
| 9 | August 25, 2020 13:30 | August 25, 2020 17:45 | 4h 15m | 1,129 | 286 |
| 10 | July 19, 2020 00:30 | July 20, 2020 00:15 | 23h 45m | 996 | 4,151 |
Outage episodes by size in 2020: 42 reached 100+ customers, 9 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 2020, 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 | 2020 | 4.9 hrs | 2.30 | 3.4 hrs | 1.77 |
| Upper Michigan Energy Resources Corp. | 2020 | 4.2 hrs | 2.71 | 3.7 hrs | 2.56 |
| Alger-Delta Coop Electric Assn | 2020 | 2.8 hrs | 0.93 | 2.8 hrs | 0.93 |
| City of Marquette - (MI) | 2020 | 80 min | 0.83 | 17 min | 0.22 |
| 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 95% of Michigan's customers in 2020; 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, 2020, 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/2020/michigan/marquette-county