County annual report · FIPS 55093
2017 Pierce County, WI Power Outage Report
In 2017, customers in Pierce County, WI went without power for an average of 0.9 hours, a total of 14K customer-hours (Wisconsin average 2.9 hours). That ranks 59th worst of 72 Wisconsin counties and 2112th of 2,786 nationally.
Compared with WI, the US and 2016
Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.
Biggest outages in Pierce County, 2017
The 10 outage episodes with the most customers out at once. Times are UTC.
| # | Started (UTC) | Ended (UTC) | Duration | Peak out | Customer-hours |
|---|---|---|---|---|---|
| 1 | September 7, 2017 13:00 | September 7, 2017 19:15 | 6h 15m | 1,379 | 7,767 |
| 2 | October 12, 2017 20:30 | October 13, 2017 00:45 | 4h 15m | 311 | 558 |
| 3 | June 10, 2017 12:30 | June 10, 2017 14:45 | 2h 15m | 259 | 552 |
| 4 | April 15, 2017 17:00 | April 15, 2017 21:15 | 4h 15m | 254 | 653 |
| 5 | July 30, 2017 12:45 | July 30, 2017 17:45 | 5h | 207 | 678 |
| 6 | August 26, 2017 01:00 | August 26, 2017 12:30 | 11h 30m | 180 | 452 |
| 7 | December 7, 2017 13:30 | December 7, 2017 16:45 | 3h 15m | 173 | 408 |
| 8 | June 28, 2017 22:15 | June 29, 2017 01:00 | 2h 45m | 145 | 173 |
| 9 | July 19, 2017 22:30 | July 20, 2017 06:45 | 8h 15m | 107 | 241 |
| 10 | May 17, 2017 05:15 | May 17, 2017 17:30 | 12h 15m | 94 | 475 |
Outage episodes by size in 2017: 9 reached 100+ customers, 1 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 2017, 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 | 2017 | 4.6 hrs | 1.14 | 1.9 hrs | 0.73 |
| Dunn County Electric Coop | 2017 | 1.8 hrs | 0.93 | 48 min | 0.68 |
| Pierce-Pepin Coop Services | 2017 | 75 min | 0.84 | 4 min | 0.04 |
| St Croix Electric Coop | 2017 | 78 min | 0.58 | 58 min | 0.34 |
| City of River Falls | 2017 | 39 min | 0.36 | 7 min | 0.08 |
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 2017; 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, 2017, 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/2017/wisconsin/pierce-county