County annual report · FIPS 55131
2019 Washington County, WI Power Outage Report
In 2019, customers in Washington County, WI went without power for an average of 4.2 hours, a total of 144K customer-hours (Wisconsin average 4.4 hours). That ranks 25th worst of 71 Wisconsin counties and 1284th of 2,945 nationally.
Compared with WI, the US and 2018
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Washington County, 2019
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | October 3, 2019 14:30 | October 3, 2019 14:45 | 15m | 8,304 | 2,076 |
| 2 | July 20, 2019 05:45 | July 21, 2019 07:45 | 1d 2h | 4,326 | 12K |
| 3 | June 30, 2019 17:15 | July 1, 2019 06:15 | 13h | 3,814 | 4,345 |
| 4 | June 27, 2019 22:00 | June 30, 2019 05:45 | 2d 7h | 2,593 | 36K |
| 5 | April 3, 2019 03:15 | April 3, 2019 05:00 | 1h 45m | 2,475 | 2,360 |
| 6 | May 4, 2019 15:45 | May 4, 2019 17:45 | 2h | 1,885 | 3,424 |
| 7 | November 27, 2019 17:15 | November 29, 2019 04:30 | 1d 11h | 1,797 | 12K |
| 8 | July 18, 2019 12:15 | July 19, 2019 04:00 | 15h 45m | 1,781 | 4,067 |
| 9 | October 4, 2019 12:45 | October 4, 2019 13:15 | 30m | 1,743 | 872 |
| 10 | August 28, 2019 15:30 | August 28, 2019 22:45 | 7h 15m | 1,682 | 770 |
Outage episodes by size in 2019: 52 reached 100+ customers, 17 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 Washington County reported on EIA Form 861 for 2019, 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 |
| Hartford Electric | - | - | - | - | - |
| Slinger Utilities | - | - | - | - | - |
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 2019; utilities it does not see are not counted.
- Hours per customer = outage customer-minutes ÷ 34,303 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. Washington County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Washington County, WI annual power outage report, 2019, 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/2019/wisconsin/washington-county