massoutage

County annual report · FIPS 55057

2021 Juneau County, WI Power Outage Report

In 2021, customers in Juneau County, WI went without power for an average of 0.8 hours, a total of 12K customer-hours (Wisconsin average 4.7 hours). That ranks 66th worst of 72 Wisconsin counties and 2745th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
0.8
15,444 customers
Customer-hours out
12K
Peak customers out
821
Outages ≥1,000 out
0
0 of 10,000+ · 330 total
Longest outage
23h 15m
began December 16, 2021
Rank in state
66th/72
2745th of 2,974 US

Compared with WI, the US and 2020

Juneau County, WI average hours without power per customer compared with state and national averages, 2021Juneau County 0.8 hours, Wisconsin average 4.7 hours, US average 8.9 hours, Juneau County, 2020 0.6 hoursJuneau CountyJuneau County0.8hWisconsin averageWisconsin average4.7hUS averageUS average8.9hJuneau County, 2020Juneau County, 20200.6h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Juneau County, WI customer-hours without power by month, 2021Jan 34, Feb 62, Mar 2,593, Apr 1,089, May 435, Jun 1,222, Jul 1,341, Aug 1,616, Sep 211, Oct 256, Nov 89, Dec 2,71301k2k3k34Jan62Feb2,593Mar1,089Apr435May1,222Jun1,341Jul1,616Aug211Sep256Oct89Nov2,713Dec
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Customer-hours; December was the worst month.

Juneau County year over year

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Juneau County, WI: average hours without power per customer by year2015: 0.7h; 2016: 1.0h; 2017: 0.7h; 2018: 1.2h, coverage 83%; 2019: 2.4h, coverage 84%; 2020: 0.6h, coverage 84%; 2021: 0.8h, coverage 85%; 2022: 2.4h, coverage 85%; 2023: 2.8h; 2024: 0.3h; 2025: 0.8h01230%50%100%0.7h20151.0h20160.7h20171.2h20182.4h20190.6h20200.8h20212.4h20222.8h20230.3h20240.8h2025
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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 Juneau County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 17, 2021 15:00March 17, 2021 17:302h 30m8211,438
2July 17, 2021 18:45July 17, 2021 20:301h 45m6811,057
3December 16, 2021 05:30December 17, 2021 04:4523h 15m5672,373
4March 24, 2021 03:30March 24, 2021 10:006h 30m304799
5June 18, 2021 11:30June 18, 2021 13:151h 45m215335
6March 30, 2021 15:45March 30, 2021 17:452h211264
7December 27, 2021 15:00December 27, 2021 16:301h 30m211315
8August 11, 2021 18:30August 11, 2021 23:154h 45m203912
9April 21, 2021 16:45April 21, 2021 22:456h161926
10June 30, 2021 13:15June 30, 2021 19:005h 45m79341

Outage episodes by size in 2021: 9 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 Juneau County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Vernon Electric Coop20183.8 hrs-2.4 hrs-
Oakdale Electric Coop20211.8 hrs0.9363 min0.72
Alliant Energy (Interstate Power & Light)-----
Wisconsin Power & Light Co-----
City of Elroy - (WI)-----
City of New Lisbon-----
Wonewoc Electric & Water Util-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 85% of Wisconsin's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 15,444 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. Juneau County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Juneau County, WI annual power outage report, 2021, 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/2021/wisconsin/juneau-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON