County annual report · FIPS 55077
2018 Marquette County, WI Power Outage Report
In 2018, customers in Marquette County, WI went without power for an average of 18.1 hours, a total of 160K customer-hours (Wisconsin average 1.7 hours). That ranks 1st worst of 71 Wisconsin counties and 316th of 2,798 nationally.
Compared with WI, the US and 2017
Coverage line is EAGLE-I's share of Wisconsin 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 | August 28, 2018 20:15 | August 31, 2018 17:45 | 2d 21h | 5,520 | 117K |
| 2 | April 14, 2018 12:30 | April 16, 2018 13:15 | 2d | 2,503 | 6,380 |
| 3 | April 6, 2018 02:00 | April 6, 2018 03:15 | 1h 15m | 974 | 1,218 |
| 4 | October 28, 2018 11:00 | October 28, 2018 14:30 | 3h 30m | 950 | 2,611 |
| 5 | October 4, 2018 05:30 | October 4, 2018 11:00 | 5h 30m | 924 | 4,180 |
| 6 | October 5, 2018 12:00 | October 5, 2018 14:30 | 2h 30m | 924 | 1,157 |
| 7 | July 11, 2018 13:15 | July 12, 2018 13:00 | 23h 45m | 639 | 11K |
| 8 | September 2, 2018 07:30 | September 4, 2018 14:15 | 2d 6h | 297 | 2,618 |
| 9 | March 6, 2018 03:15 | March 6, 2018 04:30 | 1h 15m | 271 | 136 |
| 10 | June 30, 2018 21:15 | July 1, 2018 17:15 | 20h | 268 | 898 |
Outage episodes by size in 2018: 20 reached 100+ customers, 2 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 |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2018 | 2.0 hrs | 0.73 | 70 min | 0.59 |
| Adams-Columbia Electric Coop | 2018 | 6.5 hrs | 0.91 | 50 min | 0.46 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Pioneer Power and Light Co | - | - | - | - | - |
| Westfield Electric Company | - | - | - | - | - |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 83% of Wisconsin's customers in 2018; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 8,847 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, WI 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/wisconsin/marquette-county