County annual report · FIPS 55121
2022 Trempealeau County, WI Power Outage Report
In 2022, customers in Trempealeau County, WI went without power for an average of 1.9 hours, a total of 27K customer-hours (Wisconsin average 4.6 hours). That ranks 53rd worst of 72 Wisconsin counties and 2349th of 2,976 nationally.
Compared with WI, the US and 2021
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Trempealeau County, 2022
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | December 22, 2022 02:15 | December 22, 2022 09:00 | 6h 45m | 771 | 3,534 |
| 2 | December 3, 2022 04:30 | December 3, 2022 08:15 | 3h 45m | 713 | 1,708 |
| 3 | December 15, 2022 07:45 | December 17, 2022 04:45 | 1d 21h | 630 | 7,408 |
| 4 | May 11, 2022 18:15 | May 11, 2022 20:15 | 2h | 574 | 272 |
| 5 | May 25, 2022 18:30 | May 25, 2022 20:15 | 1h 45m | 508 | 889 |
| 6 | July 11, 2022 18:45 | July 11, 2022 21:45 | 3h | 506 | 508 |
| 7 | July 12, 2022 11:45 | July 12, 2022 19:45 | 8h | 499 | 990 |
| 8 | September 20, 2022 23:00 | September 21, 2022 00:30 | 1h 30m | 494 | 408 |
| 9 | December 23, 2022 07:30 | December 23, 2022 11:00 | 3h 30m | 481 | 1,147 |
| 10 | June 21, 2022 09:00 | June 21, 2022 16:15 | 7h 15m | 404 | 1,017 |
Outage episodes by size in 2022: 20 reached 100+ customers, 0 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 2022, 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 | 2022 | 6.7 hrs | 1.68 | 2.7 hrs | 1.16 |
| Riverland Energy Cooperative | 2022 | 2.6 hrs | 1.40 | 2.6 hrs | 1.35 |
| 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 85% of Wisconsin's customers in 2022; 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, 2022, 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/2022/wisconsin/trempealeau-county