massoutage

County annual report · FIPS 55085

2025 Oneida County, WI Power Outage Report

In 2025, customers in Oneida County, WI went without power for an average of 30.1 hours, a total of 670K customer-hours (Wisconsin average 3.9 hours). That ranks 6th worst of 72 Wisconsin counties and 191st of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
30.1
22,258 customers
Customer-hours out
670K
Peak customers out
15,106
Outages ≥1,000 out
15
1 of 10,000+ · 515 total
Longest outage
4d 16h
began March 30, 2025
Rank in state
6th/72
191st of 3,000 US

Compared with WI, the US and 2024

Oneida County, WI average hours without power per customer compared with state and national averages, 2025Oneida County 30.1 hours, Wisconsin average 3.9 hours, US average 5.9 hours, Oneida County, 2024 9.7 hoursOneida CountyOneida County30.1hWisconsin averageWisconsin average3.9hUS averageUS average5.9hOneida County, 2024Oneida County, 20249.7h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Oneida County, WI customer-hours without power by month, 2025Jan 3,380, Feb 2,501, Mar 420K, Apr 130K, May 26K, Jun 14K, Jul 3,043, Aug 2,354, Sep 2,372, Oct 3,626, Nov 19K, Dec 43K0200k400k600k3,380Jan2,501Feb420KMar130KApr26KMay14KJun3,043Jul2,354Aug2,372Sep3,626Oct19KNov43KDec
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Customer-hours; March was the worst month.

Oneida County year over year

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Oneida County, WI: average hours without power per customer by year2015: 10.4h; 2016: 35.0h; 2017: 29.7h; 2018: 3.5h, coverage 83%; 2019: 28.3h, coverage 84%; 2020: 4.8h, coverage 84%; 2021: 32.9h, coverage 85%; 2022: 21.6h, coverage 85%; 2023: 9.3h; 2024: 9.7h; 2025: 30.1h0102030400%50%100%10.4h201535.0h201629.7h20173.5h201828.3h20194.8h202032.9h202121.6h20229.3h20239.7h202430.1h2025
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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 Oneida County, 2025

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
1March 30, 2025 02:30April 3, 2025 18:304d 16h15,106512K
2December 28, 2025 22:00December 30, 2025 12:301d 14h3,88540K
3February 4, 2025 08:30February 4, 2025 09:451h 15m2,619744
4March 5, 2025 07:30March 6, 2025 20:301d 13h2,59227K
5November 26, 2025 11:30November 27, 2025 18:301d 7h2,33110K
6May 15, 2025 16:00May 18, 2025 19:003d 3h2,22917K
7June 30, 2025 14:45July 1, 2025 03:3012h 45m2,2131,709
8November 2, 2025 17:30November 3, 2025 01:308h2,2053,520
9August 19, 2025 15:15August 19, 2025 20:305h 15m2,192674
10July 26, 2025 08:30July 26, 2025 20:4512h 15m2,0801,474

Outage episodes by size in 2025: 52 reached 100+ customers, 15 reached 1,000+ customers, 1 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 Oneida County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Northern States Power Co20243.1 hrs1.062.0 hrs0.81
Wisconsin Public Service Corp20247.8 hrs1.221.6 hrs0.77
Price Electric Coop Inc20134.5 hrs4.504.5 hrs4.50

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 2025; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 22,258 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. Oneida County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Oneida County, WI annual power outage report, 2025, 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/2025/wisconsin/oneida-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON