County annual report · FIPS 55127
2022 Walworth County, WI Power Outage Report
In 2022, customers in Walworth County, WI went without power for an average of 1.7 hours, a total of 77K customer-hours (Wisconsin average 4.6 hours). That ranks 56th worst of 72 Wisconsin counties and 2407th 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 Walworth 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 | March 28, 2022 13:15 | March 28, 2022 15:30 | 2h 15m | 3,416 | 4,271 |
| 2 | December 23, 2022 22:00 | December 23, 2022 22:30 | 30m | 2,519 | 1,260 |
| 3 | July 31, 2022 09:00 | July 31, 2022 12:15 | 3h 15m | 1,453 | 1,095 |
| 4 | August 21, 2022 11:00 | August 21, 2022 15:30 | 4h 30m | 1,301 | 979 |
| 5 | April 23, 2022 00:45 | April 23, 2022 10:00 | 9h 15m | 1,284 | 2,032 |
| 6 | May 30, 2022 19:30 | May 31, 2022 06:00 | 10h 30m | 1,226 | 2,978 |
| 7 | March 18, 2022 22:30 | March 19, 2022 03:30 | 5h | 1,124 | 1,441 |
| 8 | July 5, 2022 02:00 | July 5, 2022 18:15 | 16h 15m | 1,067 | 7,923 |
| 9 | November 5, 2022 12:00 | November 6, 2022 19:45 | 1d 7h | 863 | 5,665 |
| 10 | June 25, 2022 09:45 | June 25, 2022 18:45 | 9h | 851 | 992 |
Outage episodes by size in 2022: 61 reached 100+ customers, 8 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 Walworth 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 |
|---|---|---|---|---|---|
| Wisconsin Electric Power Co | 2022 | 4.7 hrs | 1.05 | 2.0 hrs | 0.82 |
| Rock Energy Cooperative | 2022 | 13 min | 0.48 | - | - |
| Alliant Energy (Interstate Power & Light) | - | - | - | - | - |
| Wisconsin Power & Light Co | - | - | - | - | - |
| City of Elkhorn - (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 85% of Wisconsin's customers in 2022; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 45,649 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. Walworth County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Walworth 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/walworth-county