County annual report · FIPS 55093
2023 Pierce County, WI Power Outage Report
In 2023, customers in Pierce County, WI went without power for an average of 1.6 hours, a total of 26K customer-hours (Wisconsin average 3.4 hours). That ranks 43rd worst of 72 Wisconsin counties and 2459th of 2,977 nationally.
Compared with WI, the US and 2022
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Pierce County, 2023
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 1, 2023 06:15 | April 1, 2023 22:30 | 16h 15m | 4,570 | 14K |
| 2 | November 4, 2023 15:30 | November 4, 2023 21:00 | 5h 30m | 1,026 | 2,284 |
| 3 | September 15, 2023 18:00 | September 15, 2023 21:45 | 3h 45m | 462 | 1,733 |
| 4 | July 4, 2023 00:45 | July 4, 2023 04:30 | 3h 45m | 320 | 989 |
| 5 | October 31, 2023 10:45 | October 31, 2023 15:00 | 4h 15m | 243 | 1,033 |
| 6 | December 18, 2023 12:15 | December 18, 2023 15:15 | 3h | 237 | 672 |
| 7 | April 13, 2023 21:45 | April 13, 2023 23:45 | 2h | 204 | 259 |
| 8 | August 11, 2023 23:30 | August 12, 2023 06:00 | 6h 30m | 186 | 338 |
| 9 | August 24, 2023 13:30 | August 24, 2023 15:45 | 2h 15m | 172 | 354 |
| 10 | September 30, 2023 06:45 | September 30, 2023 08:15 | 1h 30m | 172 | 248 |
Outage episodes by size in 2023: 13 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 Pierce County reported on EIA Form 861 for 2023, 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 | 2023 | 3.5 hrs | 1.26 | 2.1 hrs | 1.09 |
| Dunn County Electric Coop | 2023 | 1.8 hrs | 0.84 | 79 min | 0.81 |
| 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 | 2023 | 39 min | 0.17 | 39 min | 0.17 |
About this data
- Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about n/a of Wisconsin's customers in 2023; 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, 2023, 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/2023/wisconsin/pierce-county