massoutage

County annual report · FIPS 55051

2020 Iron County, WI Power Outage Report

In 2020, customers in Iron County, WI went without power for an average of 5.8 hours, a total of 12K customer-hours (Wisconsin average 1.8 hours). That ranks 4th worst of 72 Wisconsin counties and 1272nd of 3,019 nationally.

Summary data CSVJSON
Avg hrs / customer
5.8
2,123 customers
Customer-hours out
12K
Peak customers out
837
Outages ≥1,000 out
0
0 of 10,000+ · 175 total
Longest outage
19h
began January 21, 2020
Rank in state
4th/72
1272nd of 3,019 US

Compared with WI, the US and 2019

Iron County, WI average hours without power per customer compared with state and national averages, 2020Iron County 5.8 hours, Wisconsin average 1.8 hours, US average 8.7 hours, Iron County, 2019 38.5 hoursIron CountyIron County5.8hWisconsin averageWisconsin average1.8hUS averageUS average8.7hIron County, 2019Iron County, 201938.5h
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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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Iron County, WI customer-hours without power by month, 2020Jan 251, Feb 106, Mar 185, Apr 1,254, May 263, Jun 89, Jul 5,213, Aug 331, Sep 2,328, Oct 896, Nov 489, Dec 90102k4k6k251Jan106Feb185Mar1,254Apr263May89Jun5,213Jul331Aug2,328Sep896Oct489Nov901Dec
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Customer-hours; July was the worst month.

Iron County year over year

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Iron County, WI: average hours without power per customer by year2015: 4.1h; 2016: 11.6h; 2017: 12.8h; 2018: 17.2h, coverage 83%; 2019: 38.5h, coverage 84%; 2020: 5.8h, coverage 84%; 2021: 18.3h, coverage 85%; 2022: 15.4h, coverage 85%; 2023: 13.8h; 2024: 13.0h; 2025: 64.7h0204060800%50%100%4.1h201511.6h201612.8h201717.2h201838.5h20195.8h202018.3h202115.4h202213.8h202313.0h202464.7h2025
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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 Iron County, 2020

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 3, 2020 07:45September 3, 2020 12:004h 15m8372,065
2July 19, 2020 04:45July 19, 2020 13:459h6164,322
3December 14, 2020 18:00December 14, 2020 20:302h 30m439546
4October 5, 2020 18:30October 6, 2020 02:007h 30m401711
5April 8, 2020 22:00April 9, 2020 01:453h 45m374463
6November 2, 2020 20:00November 2, 2020 21:151h 15m249305
7July 3, 2020 22:30July 4, 2020 04:005h 30m202483
8December 3, 2020 15:30December 3, 2020 17:452h 15m151324
9April 13, 2020 17:45April 13, 2020 22:154h 30m138436
10November 7, 2020 08:45November 7, 2020 10:452h111102

Outage episodes by size in 2020: 10 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 Iron County reported on EIA Form 861 for 2020, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20202.3 hrs0.871.6 hrs0.70
Northern States Power Co20203.9 hrs1.632.8 hrs1.52
Wisconsin Public Service Corp20201.7 hrs0.941.7 hrs0.94
Price Electric Coop Inc20134.5 hrs4.504.5 hrs4.50
Bayfield Electric Coop, Inc-----

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 ÷ 2,123 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. Iron County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Iron 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/iron-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON