County annual report · FIPS 55021
2018 Columbia County, WI Power Outage Report
In 2018, customers in Columbia County, WI went without power for an average of 0.8 hours, a total of 43K customer-hours (Wisconsin average 1.7 hours). That ranks 58th worst of 71 Wisconsin counties and 2391st of 2,798 nationally.
Compared with WI, the US and 2017
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Columbia County, 2018
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | April 14, 2018 07:15 | April 15, 2018 05:30 | 22h 15m | 3,079 | 4,262 |
| 2 | October 29, 2018 16:45 | October 29, 2018 22:30 | 5h 45m | 2,769 | 7,693 |
| 3 | August 15, 2018 13:30 | August 15, 2018 15:45 | 2h 15m | 917 | 1,619 |
| 4 | July 12, 2018 12:15 | July 12, 2018 15:30 | 3h 15m | 849 | 645 |
| 5 | February 12, 2018 06:15 | February 12, 2018 07:15 | 1h | 648 | 481 |
| 6 | January 7, 2018 05:00 | January 7, 2018 11:30 | 6h 30m | 575 | 1,043 |
| 7 | June 16, 2018 21:15 | June 17, 2018 09:45 | 12h 30m | 517 | 2,162 |
| 8 | August 28, 2018 16:30 | August 31, 2018 02:15 | 2d 9h | 474 | 2,489 |
| 9 | September 6, 2018 17:15 | September 6, 2018 19:15 | 2h | 434 | 867 |
| 10 | October 20, 2018 14:15 | October 21, 2018 00:15 | 10h | 422 | 1,633 |
Outage episodes by size in 2018: 36 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 Columbia County reported on EIA Form 861 for 2018, 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 | 2018 | 2.0 hrs | 0.73 | 70 min | 0.59 |
| Adams-Columbia Electric Coop | 2018 | 6.5 hrs | 0.91 | 50 min | 0.46 |
| 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 83% of Wisconsin's customers in 2018; 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, 2018, 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/2018/wisconsin/columbia-county