County annual report · FIPS 55109
2020 St. Croix County, WI Power Outage Report
In 2020, customers in St. Croix County, WI went without power for an average of 1.7 hours, a total of 54K customer-hours (Wisconsin average 1.8 hours). That ranks 34th worst of 72 Wisconsin counties and 2379th 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 St. Croix 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 | May 19, 2020 13:30 | May 19, 2020 20:00 | 6h 30m | 6,590 | 6,779 |
| 2 | December 23, 2020 22:00 | December 24, 2020 06:00 | 8h | 2,417 | 7,269 |
| 3 | May 18, 2020 13:00 | May 18, 2020 23:15 | 10h 15m | 1,699 | 1,315 |
| 4 | August 15, 2020 00:30 | August 15, 2020 21:30 | 21h | 1,596 | 7,904 |
| 5 | May 15, 2020 14:45 | May 15, 2020 16:30 | 1h 45m | 1,561 | 392 |
| 6 | August 15, 2020 22:15 | August 17, 2020 02:00 | 1d 3h | 1,085 | 4,448 |
| 7 | April 25, 2020 21:45 | April 26, 2020 02:45 | 5h | 1,070 | 4,547 |
| 8 | July 9, 2020 11:45 | July 9, 2020 16:00 | 4h 15m | 1,055 | 1,075 |
| 9 | December 16, 2020 13:30 | December 16, 2020 20:00 | 6h 30m | 674 | 685 |
| 10 | February 14, 2020 07:15 | February 14, 2020 13:00 | 5h 45m | 672 | 1,685 |
Outage episodes by size in 2020: 25 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 St. Croix 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 |
|---|---|---|---|---|---|
| Northern States Power Co | 2020 | 3.9 hrs | 1.63 | 2.8 hrs | 1.52 |
| Dunn County Electric Coop | 2020 | 68 min | 0.66 | 57 min | 0.60 |
| Polk-Burnett Electric Coop | 2020 | 3.5 hrs | 1.75 | 42 min | 0.70 |
| Pierce-Pepin Coop Services | 2018 | 3.0 hrs | 1.10 | 2.9 hrs | 1.04 |
| St Croix Electric Coop | 2018 | 1.8 hrs | 0.69 | 1.7 hrs | 0.68 |
| City of River Falls | 2020 | 21 min | 0.30 | 21 min | 0.30 |
| City of New Richmond | 2020 | 40 min | 0.47 | 40 min | 0.47 |
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 ÷ 31,550 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. St. Croix County has data for 2015, 2017–2025.
Cite this report
MassOutage (massoutage.com), St. Croix 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/st-croix-county