massoutage

County annual report · FIPS 55037

2015 Florence County, WI Power Outage Report

In 2015, customers in Florence County, WI went without power for an average of 5.5 hours, a total of 16K customer-hours (Wisconsin average 1.5 hours). That ranks 9th worst of 71 Wisconsin counties and 503rd of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
5.5
2,842 customers
Customer-hours out
16K
Peak customers out
1,136
Outages ≥1,000 out
1
0 of 10,000+ · 85 total
Longest outage
21h 30m
began November 18, 2015
Rank in state
9th/71
503rd of 2,484 US

Compared with WI, the US

Florence County, WI average hours without power per customer compared with state and national averages, 2015Florence County 5.5 hours, Wisconsin average 1.5 hours, US average 2.9 hoursFlorence CountyFlorence County5.5hWisconsin averageWisconsin average1.5hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Florence County, WI customer-hours without power by month, 2015Jan 1,795, Feb 5, Mar 7, Apr 1,645, May 26, Jun 108, Jul 1,896, Aug 574, Sep 596, Oct 1,410, Nov 7,053, Dec 61202k4k6k8k1,795Jan5Feb7Mar1,645Apr26May108Jun1,896Jul574Aug596Sep1,410Oct7,053Nov612Dec
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Customer-hours; November was the worst month.

Florence County year over year

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Florence County, WI: average hours without power per customer by year2015: 5.5h; 2016: 6.1h; 2017: 38.4h; 2018: 8.9h, coverage 83%; 2019: 16.0h, coverage 84%; 2020: 8.1h, coverage 84%; 2021: 13.5h, coverage 85%; 2022: 15.6h, coverage 85%; 2023: 5.2h; 2024: 6.3h; 2025: 37.1h0102030400%50%100%5.5h20156.1h201638.4h20178.9h201816.0h20198.1h202013.5h202115.6h20225.2h20236.3h202437.1h2025
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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 Florence County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 18, 2015 16:00November 19, 2015 13:3021h 30m1,1365,602
2January 1, 2015 17:00January 1, 2015 19:002h741780
3July 20, 2015 02:00July 20, 2015 05:003h7401,666
4November 19, 2015 16:30November 20, 2015 02:159h 45m738882
5August 15, 2015 11:15August 15, 2015 11:3015m737184
6September 17, 2015 19:15September 17, 2015 20:0045m737553
7October 24, 2015 10:45October 24, 2015 12:151h 30m7371,106
8November 13, 2015 19:00November 13, 2015 20:301h 30m737371
9November 13, 2015 22:45November 13, 2015 23:0015m737184
10December 6, 2015 15:15December 6, 2015 16:0045m737353

Outage episodes by size in 2015: 15 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 Florence County reported on EIA Form 861 for 2015, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20152.1 hrs1.631.8 hrs1.38
Wisconsin Public Service Corp20152.7 hrs1.092.0 hrs0.91
Florence Utility Comm-----

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 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,842 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. Florence County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Florence County, WI annual power outage report, 2015, 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/2015/wisconsin/florence-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON