County annual report · FIPS 55121
2024 Trempealeau County, WI Power Outage Report
In 2024, customers in Trempealeau County, WI went without power for an average of 3.0 hours, a total of 45K customer-hours (Wisconsin average 4.6 hours). That ranks 37th worst of 72 Wisconsin counties and 2099th of 2,990 nationally.
Compared with WI, the US and 2023
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Trempealeau County, 2024
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 13, 2024 21:00 | July 15, 2024 22:45 | 2d 1h | 1,725 | 17K |
| 2 | January 26, 2024 00:00 | January 26, 2024 01:30 | 1h 30m | 1,350 | 1,688 |
| 3 | May 21, 2024 23:15 | May 22, 2024 23:45 | 1d | 631 | 8,693 |
| 4 | June 5, 2024 20:15 | June 5, 2024 22:30 | 2h 15m | 524 | 405 |
| 5 | April 3, 2024 11:15 | April 3, 2024 19:45 | 8h 30m | 516 | 817 |
| 6 | October 15, 2024 12:00 | October 15, 2024 13:15 | 1h 15m | 513 | 641 |
| 7 | February 9, 2024 04:15 | February 9, 2024 08:45 | 4h 30m | 412 | 813 |
| 8 | June 21, 2024 11:30 | June 21, 2024 14:45 | 3h 15m | 405 | 508 |
| 9 | August 27, 2024 03:00 | August 27, 2024 06:15 | 3h 15m | 398 | 767 |
| 10 | June 17, 2024 12:45 | June 17, 2024 20:00 | 7h 15m | 395 | 1,234 |
Outage episodes by size in 2024: 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 Trempealeau County reported on EIA Form 861 for 2024, 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 | 2024 | 3.1 hrs | 1.06 | 2.0 hrs | 0.81 |
| Riverland Energy Cooperative | 2024 | 4.4 hrs | 1.76 | 2.4 hrs | 1.38 |
| Eau Claire Electric Coop | - | - | - | - | - |
| Jackson Electric Coop, Inc - (WI) | - | - | - | - | - |
| City of Arcadia - (WI) | - | - | - | - | - |
| Village of Trempealeau - (WI) | - | - | - | - | - |
| Whitehall Electric Utility | - | - | - | - | - |
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 2024; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 14,810 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. Trempealeau County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Trempealeau County, WI annual power outage report, 2024, 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/2024/wisconsin/trempealeau-county