County annual report · FIPS 55021
2020 Columbia County, WI Power Outage Report
In 2020, customers in Columbia County, WI went without power for an average of 2.1 hours, a total of 115K customer-hours (Wisconsin average 1.8 hours). That ranks 24th worst of 72 Wisconsin counties and 2198th of 3,019 nationally.
Compared with WI, the US and 2019
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Columbia County, 2020
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | June 3, 2020 00:45 | June 4, 2020 22:45 | 1d 22h | 8,271 | 71K |
| 2 | August 25, 2020 04:15 | August 25, 2020 19:15 | 15h | 2,377 | 14K |
| 3 | August 27, 2020 22:30 | August 28, 2020 19:45 | 21h 15m | 2,017 | 8,942 |
| 4 | July 16, 2020 01:15 | July 16, 2020 04:45 | 3h 30m | 1,344 | 1,457 |
| 5 | July 4, 2020 20:00 | July 4, 2020 21:15 | 1h 15m | 769 | 609 |
| 6 | May 4, 2020 13:30 | May 4, 2020 20:45 | 7h 15m | 666 | 189 |
| 7 | October 15, 2020 07:15 | October 15, 2020 11:15 | 4h | 626 | 1,584 |
| 8 | September 6, 2020 11:30 | September 7, 2020 00:30 | 13h | 491 | 1,818 |
| 9 | October 29, 2020 11:15 | October 29, 2020 19:15 | 8h | 394 | 770 |
| 10 | June 10, 2020 04:45 | June 10, 2020 09:30 | 4h 45m | 392 | 820 |
Outage episodes by size in 2020: 25 reached 100+ customers, 4 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 2020, 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 | 2020 | 2.3 hrs | 0.87 | 1.6 hrs | 0.70 |
| Adams-Columbia Electric Coop | 2020 | 2.6 hrs | 0.71 | 2.6 hrs | 0.71 |
| 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 84% of Wisconsin's customers in 2020; 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, 2020, 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/2020/wisconsin/columbia-county