massoutage

County annual report · FIPS 55035

2023 Eau Claire County, WI Power Outage Report

In 2023, customers in Eau Claire County, WI went without power for an average of 1.1 hours, a total of 63K customer-hours (Wisconsin average 3.4 hours). That ranks 54th worst of 72 Wisconsin counties and 2621st of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
1.1
55,392 customers
Customer-hours out
63K
Peak customers out
8,668
Outages ≥1,000 out
7
0 of 10,000+ · 494 total
Longest outage
18h 30m
began July 29, 2023
Rank in state
54th/72
2621st of 2,977 US

Compared with WI, the US and 2022

Eau Claire County, WI average hours without power per customer compared with state and national averages, 2023Eau Claire County 1.1 hours, Wisconsin average 3.4 hours, US average 7.1 hours, Eau Claire County, 2022 2.2 hoursEau Claire CountyEau Claire County1.1hWisconsin averageWisconsin average3.4hUS averageUS average7.1hEau Claire County, 2022Eau Claire County, 2…2.2h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

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Eau Claire County, WI customer-hours without power by month, 2023Jan 5,424, Feb 212, Mar 1,596, Apr 4,341, May 925, Jun 2,924, Jul 20K, Aug 3,025, Sep 13K, Oct 2,279, Nov 9,548, Dec 82010k20k30k5,424Jan212Feb1,596Mar4,341Apr925May2,924Jun20KJul3,025Aug13KSep2,279Oct9,548Nov82Dec
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Customer-hours; July 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, 2023

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
1November 22, 2023 17:00November 22, 2023 20:153h 15m8,6688,373
2July 20, 2023 01:45July 20, 2023 08:006h 15m7,0959,472
3September 23, 2023 02:15September 23, 2023 06:154h2,8169,254
4July 14, 2023 09:15July 14, 2023 18:008h 45m2,1903,456
5April 5, 2023 16:00April 5, 2023 16:3030m2,1871,094
6January 6, 2023 09:30January 6, 2023 12:453h 15m1,8774,534
7July 4, 2023 01:00July 4, 2023 10:459h 45m1,4702,008
8June 8, 2023 12:15June 8, 2023 13:451h 30m965251
9January 24, 2023 18:30January 24, 2023 20:151h 45m692174
10October 4, 2023 16:15October 4, 2023 20:304h 15m556773

Outage episodes by size in 2023: 41 reached 100+ customers, 7 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 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Northern States Power Co20233.5 hrs1.262.1 hrs1.09
Riverland Energy Cooperative20233.0 hrs1.0082 min0.77
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 n/a of Wisconsin's customers in 2023; 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, 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/eau-claire-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON