County annual report · FIPS 26103
2018 Marquette County, MI Power Outage Report
In 2018, customers in Marquette County, MI went without power for an average of 0.8 hours, a total of 38K customer-hours (Michigan average 10.0 hours). That ranks 77th worst of 80 Michigan counties and 2369th 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 Marquette 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 | September 21, 2018 13:00 | September 21, 2018 18:00 | 5h | 1,806 | 1,995 |
| 2 | May 9, 2018 23:30 | May 10, 2018 08:00 | 8h 30m | 1,422 | 2,501 |
| 3 | October 13, 2018 11:15 | October 13, 2018 14:00 | 2h 45m | 1,422 | 1,485 |
| 4 | September 21, 2018 04:00 | September 21, 2018 08:00 | 4h | 1,418 | 2,515 |
| 5 | August 14, 2018 22:00 | August 14, 2018 23:45 | 1h 45m | 1,116 | 1,405 |
| 6 | March 15, 2018 17:30 | March 15, 2018 18:30 | 1h | 1,000 | 309 |
| 7 | August 28, 2018 04:45 | August 28, 2018 22:30 | 17h 45m | 997 | 1,501 |
| 8 | November 30, 2018 07:00 | November 30, 2018 15:15 | 8h 15m | 642 | 1,163 |
| 9 | September 21, 2018 21:30 | September 22, 2018 19:00 | 21h 30m | 628 | 1,922 |
| 10 | August 23, 2018 17:45 | August 23, 2018 23:30 | 5h 45m | 623 | 2,422 |
Outage episodes by size in 2018: 34 reached 100+ customers, 6 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 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 |
| Upper Michigan Energy Resources Corp. | 2018 | 4.1 hrs | 1.16 | 2.4 hrs | 0.91 |
| Alger-Delta Coop Electric Assn | 2018 | 74 min | 0.33 | 74 min | 0.33 |
| City of Marquette - (MI) | 2018 | 39 min | 0.40 | 17 min | 0.21 |
| 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 91% of Michigan's customers in 2018; 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, 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/marquette-county