County annual report · FIPS 55073
2015 Marathon County, WI Power Outage Report
In 2015, customers in Marathon County, WI went without power for an average of 1.0 hours, a total of 82K customer-hours (Wisconsin average 1.5 hours). That ranks 45th worst of 71 Wisconsin counties and 1754th of 2,484 nationally.
Compared with WI, the US
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Marathon County, 2015
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | January 18, 2015 00:45 | January 18, 2015 04:00 | 3h 15m | 4,951 | 8,666 |
| 2 | March 10, 2015 21:30 | March 18, 2015 18:00 | 7d 20h | 4,471 | 9,222 |
| 3 | June 22, 2015 15:15 | June 23, 2015 11:15 | 20h | 4,132 | 8,281 |
| 4 | March 30, 2015 16:45 | March 30, 2015 18:30 | 1h 45m | 4,050 | 2,026 |
| 5 | May 19, 2015 20:45 | May 20, 2015 01:00 | 4h 15m | 2,914 | 5,361 |
| 6 | May 26, 2015 18:00 | May 26, 2015 23:00 | 5h | 2,608 | 1,004 |
| 7 | November 11, 2015 23:45 | November 12, 2015 08:00 | 8h 15m | 1,988 | 1,057 |
| 8 | December 24, 2015 06:00 | December 24, 2015 16:15 | 10h 15m | 1,829 | 5,839 |
| 9 | May 7, 2015 15:45 | May 7, 2015 22:30 | 6h 45m | 1,743 | 1,497 |
| 10 | May 18, 2015 00:30 | May 18, 2015 03:30 | 3h | 1,246 | 1,343 |
Outage episodes by size in 2015: 55 reached 100+ customers, 12 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 2015, 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 | 2015 | 2.4 hrs | 0.90 | 2.0 hrs | 0.82 |
| Wisconsin Public Service Corp | 2015 | 2.7 hrs | 1.09 | 2.0 hrs | 0.91 |
| Taylor Electric Coop - (WI) | 2015 | 1.9 hrs | - | 81 min | - |
| City of Marshfield - (WI) | 2015 | 15 min | 0.22 | 5 min | 0.16 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Clark Electric Coop - (WI) | - | - | - | - | - |
| Central Wisconsin Elec Coop | - | - | - | - | - |
| 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 n/a of Wisconsin's customers in 2015; 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, 2015, 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/2015/wisconsin/marathon-county