County annual report · FIPS 55093
2019 Pierce County, WI Power Outage Report
In 2019, customers in Pierce County, WI went without power for an average of 0.7 hours, a total of 12K customer-hours (Wisconsin average 4.4 hours). That ranks 66th worst of 71 Wisconsin counties and 2615th 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 Pierce 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 5, 2019 15:45 | October 5, 2019 19:45 | 4h | 888 | 1,209 |
| 2 | September 3, 2019 04:30 | September 3, 2019 18:45 | 14h 15m | 649 | 2,379 |
| 3 | April 11, 2019 13:00 | April 11, 2019 23:30 | 10h 30m | 346 | 2,094 |
| 4 | July 20, 2019 13:15 | July 21, 2019 21:00 | 1d 7h | 291 | 1,906 |
| 5 | August 20, 2019 14:00 | August 21, 2019 00:30 | 10h 30m | 225 | 591 |
| 6 | July 12, 2019 19:45 | July 12, 2019 21:30 | 1h 45m | 163 | 210 |
| 7 | August 25, 2019 08:15 | August 25, 2019 14:00 | 5h 45m | 85 | 243 |
| 8 | March 19, 2019 03:15 | March 19, 2019 03:30 | 15m | 80 | 20 |
| 9 | September 27, 2019 22:00 | September 28, 2019 00:45 | 2h 45m | 72 | 143 |
| 10 | April 22, 2019 16:15 | April 22, 2019 19:00 | 2h 45m | 63 | 113 |
Outage episodes by size in 2019: 6 reached 100+ customers, 0 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 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 |
|---|---|---|---|---|---|
| Northern States Power Co | 2018 | 2.9 hrs | 0.94 | 1.8 hrs | 0.69 |
| Dunn County Electric Coop | 2018 | 2.3 hrs | 1.34 | 60 min | 0.60 |
| 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 | 2018 | 45 min | 0.41 | 18 min | 0.12 |
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 ÷ 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, 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/pierce-county