massoutage

County annual report · FIPS 55035

2020 Eau Claire County, WI Power Outage Report

In 2020, customers in Eau Claire County, WI went without power for an average of 0.8 hours, a total of 45K customer-hours (Wisconsin average 1.8 hours). That ranks 61st worst of 72 Wisconsin counties and 2734th of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
0.8
55,392 customers
Customer-hours out
45K
Peak customers out
2,436
Outages ≥1,000 out
6
0 of 10,000+ · 424 total
Longest outage
22h 30m
began June 2, 2020
Rank in state
61st/72
2734th of 3,019 US

Compared with WI, the US and 2019

Eau Claire County, WI average hours without power per customer compared with state and national averages, 2020Eau Claire County 0.8 hours, Wisconsin average 1.8 hours, US average 8.7 hours, Eau Claire County, 2019 1.0 hoursEau Claire CountyEau Claire County0.8hWisconsin averageWisconsin average1.8hUS averageUS average8.7hEau Claire County, 2019Eau Claire County, 2…1.0h
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Average hours without power per customer in 2020; last bar is this county in 2019.

Month by month

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Eau Claire County, WI customer-hours without power by month, 2020Jan 498, Feb 35, Mar 3,574, Apr 10K, May 6,789, Jun 8,644, Jul 5,133, Aug 4,761, Sep 2,249, Oct 2,729, Nov 161, Dec 57105k10k15k498Jan35Feb3,574Mar10KApr6,789May8,644Jun5,133Jul4,761Aug2,249Sep2,729Oct161Nov571Dec
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Customer-hours; April was the worst month.

Eau Claire County year over year

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Eau Claire County, WI: average hours without power per customer by year2015: 0.5h; 2016: 0.8h; 2017: 0.8h; 2018: 1.1h, coverage 83%; 2019: 1.0h, coverage 84%; 2020: 0.8h, coverage 84%; 2021: 1.8h, coverage 85%; 2022: 2.2h, coverage 85%; 2023: 1.1h; 2024: 1.7h; 2025: 1.8h01230%50%100%0.5h20150.8h20160.8h20171.1h20181.0h20190.8h20201.8h20212.2h20221.1h20231.7h20241.8h2025
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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 Eau Claire County, 2020

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 25, 2020 15:30May 26, 2020 05:0013h 30m2,4365,188
2April 20, 2020 22:00April 21, 2020 17:3019h 30m2,3718,174
3June 13, 2020 20:15June 14, 2020 00:154h2,1801,687
4August 24, 2020 21:00August 25, 2020 02:305h 30m1,1861,869
5May 23, 2020 22:00May 23, 2020 23:451h 45m1,142692
6September 3, 2020 13:45September 3, 2020 18:004h 15m1,0231,103
7March 6, 2020 00:45March 6, 2020 04:454h8182,657
8August 9, 2020 00:00August 9, 2020 01:301h 30m752750
9June 2, 2020 14:45June 3, 2020 13:1522h 30m7033,753
10July 3, 2020 04:30July 3, 2020 07:152h 45m6871,718

Outage episodes by size in 2020: 31 reached 100+ customers, 6 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 Eau Claire County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Northern States Power Co20203.9 hrs1.632.8 hrs1.52
Riverland Energy Cooperative202088 min0.6973 min0.59
Eau Claire Electric Coop-----
Jackson Electric Coop, Inc - (WI)-----

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 2020; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 55,392 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. Eau Claire County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Eau Claire County, WI annual power outage report, 2020, 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/2020/wisconsin/eau-claire-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON