massoutage

County annual report · FIPS 55037

2018 Florence County, WI Power Outage Report

In 2018, customers in Florence County, WI went without power for an average of 8.9 hours, a total of 25K customer-hours (Wisconsin average 1.7 hours). That ranks 6th worst of 71 Wisconsin counties and 636th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
8.9
2,842 customers
Customer-hours out
25K
Peak customers out
950
Outages ≥1,000 out
0
0 of 10,000+ · 166 total
Longest outage
1d 6h
began June 17, 2018
Rank in state
6th/71
636th of 2,798 US

Compared with WI, the US and 2017

Florence County, WI average hours without power per customer compared with state and national averages, 2018Florence County 8.9 hours, Wisconsin average 1.7 hours, US average 5.6 hours, Florence County, 2017 38.4 hoursFlorence CountyFlorence County8.9hWisconsin averageWisconsin average1.7hUS averageUS average5.6hFlorence County, 2017Florence County, 201738.4h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Florence County, WI customer-hours without power by month, 2018Jan 29, Feb 58, Mar 1,163, Apr 126, May 258, Jun 3,851, Jul 795, Aug 1,347, Sep 4,166, Oct 9,184, Nov 3,181, Dec 1,17702.5k5k7.5k10k29Jan58Feb1,163Mar126Apr258May3,851Jun795Jul1,347Aug4,166Sep9,184Oct3,181Nov1,177Dec
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Customer-hours; October 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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 4, 2018 19:30November 5, 2018 04:459h 15m9503,062
2October 3, 2018 22:30October 4, 2018 21:3023h7967,352
3August 22, 2018 20:00August 22, 2018 22:002h742745
4September 21, 2018 11:00September 22, 2018 16:301d 5h6644,008
5June 17, 2018 23:15June 19, 2018 06:001d 6h5333,211
6December 2, 2018 06:15December 2, 2018 10:003h 45m4581,052
7October 5, 2018 09:30October 5, 2018 13:153h 45m266828
8June 15, 2018 14:15June 15, 2018 21:006h 45m216357
9October 19, 2018 21:15October 20, 2018 04:006h 45m207439
10July 1, 2018 00:15July 1, 2018 07:006h 45m205223

Outage episodes by size in 2018: 17 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 Florence County reported on EIA Form 861 for 2018, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Wisconsin Electric Power Co20182.0 hrs0.7370 min0.59
Wisconsin Public Service Corp20182.0 hrs0.971.8 hrs0.94
Florence Utility Comm201845 min0.4445 min0.44

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 83% of Wisconsin's customers in 2018; 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, 2018, 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/2018/wisconsin/florence-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON