County annual report · FIPS 55073
2018 Marathon County, WI Power Outage Report
In 2018, customers in Marathon County, WI went without power for an average of 0.8 hours, a total of 64K customer-hours (Wisconsin average 1.7 hours). That ranks 57th worst of 71 Wisconsin counties and 2388th 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 Marathon 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 | October 11, 2018 14:30 | October 11, 2018 22:15 | 7h 45m | 1,665 | 3,829 |
| 2 | June 17, 2018 18:00 | June 19, 2018 03:15 | 1d 9h | 1,396 | 7,858 |
| 3 | March 29, 2018 21:45 | March 30, 2018 02:00 | 4h 15m | 1,322 | 993 |
| 4 | July 13, 2018 02:30 | July 13, 2018 16:45 | 14h 15m | 1,296 | 3,412 |
| 5 | December 18, 2018 19:30 | December 18, 2018 22:00 | 2h 30m | 1,102 | 1,930 |
| 6 | September 17, 2018 23:45 | September 18, 2018 01:00 | 1h 15m | 1,101 | 1,376 |
| 7 | July 20, 2018 06:30 | July 20, 2018 06:45 | 15m | 1,097 | 274 |
| 8 | September 21, 2018 02:45 | September 22, 2018 07:15 | 1d 4h | 1,023 | 9,084 |
| 9 | October 3, 2018 09:00 | October 3, 2018 18:45 | 9h 45m | 1,008 | 2,313 |
| 10 | October 15, 2018 14:15 | October 15, 2018 23:15 | 9h | 865 | 464 |
Outage episodes by size in 2018: 43 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 Marathon 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 |
|---|---|---|---|---|---|
| Northern States Power Co | 2018 | 2.9 hrs | 0.94 | 1.8 hrs | 0.69 |
| Wisconsin Public Service Corp | 2018 | 2.0 hrs | 0.97 | 1.8 hrs | 0.94 |
| Central Wisconsin Elec Coop | 2018 | 2.5 hrs | 1.27 | - | - |
| Taylor Electric Coop - (WI) | 2018 | 80 min | - | 46 min | - |
| City of Marshfield - (WI) | 2018 | 11 min | 0.28 | 8 min | 0.24 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Clark Electric Coop - (WI) | - | - | - | - | - |
| Village of Stratford - (WI) | - | - | - | - | - |
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 ÷ 80,598 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. Marathon County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Marathon 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/marathon-county