County annual report · FIPS 55021
2023 Columbia County, WI Power Outage Report
In 2023, customers in Columbia County, WI went without power for an average of 2.0 hours, a total of 108K customer-hours (Wisconsin average 3.4 hours). That ranks 34th worst of 72 Wisconsin counties and 2281st 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 Columbia 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 29, 2023 02:30 | July 31, 2023 15:15 | 2d 12h | 4,506 | 91K |
| 2 | October 10, 2023 13:45 | October 10, 2023 20:45 | 7h | 986 | 995 |
| 3 | April 5, 2023 15:15 | April 5, 2023 15:45 | 30m | 508 | 254 |
| 4 | March 10, 2023 03:00 | March 10, 2023 07:00 | 4h | 495 | 290 |
| 5 | September 12, 2023 13:45 | September 12, 2023 19:30 | 5h 45m | 446 | 148 |
| 6 | August 21, 2023 03:15 | August 21, 2023 04:45 | 1h 30m | 412 | 618 |
| 7 | November 16, 2023 14:00 | November 16, 2023 22:45 | 8h 45m | 386 | 770 |
| 8 | February 25, 2023 07:15 | February 25, 2023 07:45 | 30m | 380 | 190 |
| 9 | June 25, 2023 03:45 | June 25, 2023 05:15 | 1h 30m | 333 | 500 |
| 10 | October 7, 2023 12:00 | October 7, 2023 18:30 | 6h 30m | 326 | 276 |
Outage episodes by size in 2023: 26 reached 100+ customers, 1 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 Columbia 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 |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2023 | 4.5 hrs | 1.04 | 85 min | 0.68 |
| Adams-Columbia Electric Coop | 2023 | 3.8 hrs | 1.09 | 3.8 hrs | 1.09 |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| Wisconsin Dells Electric Util | - | - | - | - | - |
| City of Columbus - (WI) | - | - | - | - | - |
| City of Lodi - (WI) | - | - | - | - | - |
| Village of Pardeeville - (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 ÷ 53,762 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. Columbia County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Columbia 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/columbia-county