County annual report · FIPS 55073
2023 Marathon County, WI Power Outage Report
In 2023, customers in Marathon County, WI went without power for an average of 1.2 hours, a total of 95K customer-hours (Wisconsin average 3.4 hours). That ranks 51st worst of 72 Wisconsin counties and 2605th of 2,977 nationally.
Compared with WI, the US and 2022
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Marathon County, 2023
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | July 28, 2023 00:30 | July 29, 2023 15:00 | 1d 14h | 8,448 | 19K |
| 2 | February 6, 2023 12:00 | February 6, 2023 14:30 | 2h 30m | 6,045 | 8,180 |
| 3 | August 12, 2023 00:15 | August 12, 2023 10:30 | 10h 15m | 4,980 | 8,851 |
| 4 | September 24, 2023 20:00 | September 25, 2023 07:00 | 11h | 4,851 | 4,604 |
| 5 | January 7, 2023 20:00 | January 8, 2023 00:00 | 4h | 2,206 | 594 |
| 6 | December 14, 2023 19:30 | December 15, 2023 00:00 | 4h 30m | 2,020 | 4,537 |
| 7 | May 10, 2023 18:45 | May 10, 2023 21:30 | 2h 45m | 1,605 | 890 |
| 8 | March 22, 2023 14:15 | March 22, 2023 21:00 | 6h 45m | 1,505 | 1,514 |
| 9 | February 15, 2023 07:45 | February 15, 2023 11:15 | 3h 30m | 1,503 | 4,886 |
| 10 | March 31, 2023 14:45 | March 31, 2023 19:15 | 4h 30m | 1,472 | 3,102 |
Outage episodes by size in 2023: 54 reached 100+ customers, 13 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 2023, 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 | 2023 | 3.5 hrs | 1.26 | 2.1 hrs | 1.09 |
| Wisconsin Public Service Corp | 2023 | 2.5 hrs | 0.85 | 74 min | 0.67 |
| Central Wisconsin Elec Coop | 2018 | 2.5 hrs | 1.27 | - | - |
| Taylor Electric Coop - (WI) | 2018 | 80 min | - | 46 min | - |
| City of Marshfield - (WI) | 2023 | 47 min | 0.22 | 13 min | 0.15 |
| 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 n/a of Wisconsin's customers in 2023; 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, 2023, 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/2023/wisconsin/marathon-county