massoutage

County annual report · FIPS 55093

2024 Pierce County, WI Power Outage Report

In 2024, customers in Pierce County, WI went without power for an average of 1.0 hours, a total of 16K customer-hours (Wisconsin average 4.6 hours). That ranks 66th worst of 72 Wisconsin counties and 2736th of 2,990 nationally.

Summary data CSVJSON
Avg hrs / customer
1.0
16,786 customers
Customer-hours out
16K
Peak customers out
1,434
Outages ≥1,000 out
1
0 of 10,000+ · 265 total
Longest outage
18h 30m
began May 21, 2024
Rank in state
66th/72
2736th of 2,990 US

Compared with WI, the US and 2023

Pierce County, WI average hours without power per customer compared with state and national averages, 2024Pierce County 1.0 hours, Wisconsin average 4.6 hours, US average 12.6 hours, Pierce County, 2023 1.6 hoursPierce CountyPierce County1.0hWisconsin averageWisconsin average4.6hUS averageUS average12.6hPierce County, 2023Pierce County, 20231.6h
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Average hours without power per customer in 2024; last bar is this county in 2023.

Month by month

CSVJSON
Pierce County, WI customer-hours without power by month, 2024Jan 178, Feb 460, Mar 241, Apr 180, May 1,150, Jun 3,480, Jul 881, Aug 2,426, Sep 265, Oct 1,876, Nov 4,955, Dec 26402k4k6k178Jan460Feb241Mar180Apr1,150May3,480Jun881Jul2,426Aug265Sep1,876Oct4,955Nov264Dec
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Customer-hours; November was the worst month.

Pierce County year over year

CSVJSON
Pierce County, WI: average hours without power per customer by year2015: 1.7h; 2016: 1.6h; 2017: 0.9h; 2018: 0.9h, coverage 83%; 2019: 0.7h, coverage 84%; 2020: 0.7h, coverage 84%; 2021: 1.5h, coverage 85%; 2022: 1.3h, coverage 85%; 2023: 1.6h; 2024: 1.0h; 2025: 2.0h01230%50%100%1.7h20151.6h20160.9h20170.9h20180.7h20190.7h20201.5h20211.3h20221.6h20231.0h20242.0h2025
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Average hours without power per customer. Line: EAGLE-I coverage, share of customers tracked (right axis).

Coverage line is EAGLE-I's share of Wisconsin customers tracked each year.

Biggest outages in Pierce County, 2024

The 10 outage episodes with the most customers out at once. Times are UTC.

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 5, 2024 19:15June 5, 2024 22:002h 45m1,4341,834
2October 13, 2024 16:30October 13, 2024 22:306h7931,175
3August 5, 2024 23:45August 6, 2024 07:458h7501,742
4November 3, 2024 22:00November 4, 2024 02:004h7462,617
5June 18, 2024 18:45June 18, 2024 22:153h 30m375725
6July 24, 2024 20:00July 24, 2024 22:152h 15m350657
7November 17, 2024 07:30November 17, 2024 22:1514h 45m3052,120
8June 8, 2024 15:45June 8, 2024 16:3045m299224
9May 21, 2024 21:45May 22, 2024 16:1518h 30m233815
10February 8, 2024 16:30February 8, 2024 17:1545m170128

Outage episodes by size in 2024: 11 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 2024, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Northern States Power Co20243.1 hrs1.062.0 hrs0.81
Dunn County Electric Coop20241.8 hrs0.8484 min0.69
Pierce-Pepin Coop Services20183.0 hrs1.102.9 hrs1.04
St Croix Electric Coop20181.8 hrs0.691.7 hrs0.68
City of River Falls202413 min0.1513 min0.15

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 2024; 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, 2024, 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/2024/wisconsin/pierce-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON