County annual report · FIPS 55093
2022 Pierce County, WI Power Outage Report
In 2022, customers in Pierce County, WI went without power for an average of 1.3 hours, a total of 21K customer-hours (Wisconsin average 4.6 hours). That ranks 62nd worst of 72 Wisconsin counties and 2605th 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 Pierce 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 | May 11, 2022 19:45 | May 11, 2022 20:15 | 30m | 3,469 | 1,286 |
| 2 | August 3, 2022 06:00 | August 3, 2022 18:00 | 12h | 2,857 | 4,211 |
| 3 | November 10, 2022 23:45 | November 11, 2022 04:00 | 4h 15m | 1,415 | 2,832 |
| 4 | April 30, 2022 13:30 | April 30, 2022 15:15 | 1h 45m | 745 | 1,187 |
| 5 | May 12, 2022 03:00 | May 12, 2022 16:00 | 13h | 712 | 2,697 |
| 6 | May 19, 2022 21:45 | May 20, 2022 20:30 | 22h 45m | 237 | 1,021 |
| 7 | October 14, 2022 20:15 | October 14, 2022 21:45 | 1h 30m | 168 | 210 |
| 8 | November 6, 2022 23:30 | November 7, 2022 04:00 | 4h 30m | 161 | 714 |
| 9 | May 30, 2022 12:30 | May 30, 2022 15:30 | 3h | 103 | 198 |
| 10 | June 28, 2022 11:30 | June 28, 2022 13:15 | 1h 45m | 92 | 161 |
Outage episodes by size in 2022: 9 reached 100+ customers, 3 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 Pierce 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 |
|---|---|---|---|---|---|
| Northern States Power Co | 2022 | 6.7 hrs | 1.68 | 2.7 hrs | 1.16 |
| Dunn County Electric Coop | 2022 | 3.6 hrs | 1.16 | 2.4 hrs | 0.82 |
| 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 | 2022 | 18 min | 0.11 | 18 min | 0.11 |
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 ÷ 16,786 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. Pierce County has data for 2015–2025.
Cite this report
MassOutage (massoutage.com), Pierce 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/pierce-county