massoutage

County annual report · FIPS 31043

2015 Dakota County, NE Power Outage Report

In 2015, customers in Dakota County, NE went without power for an average of 0.5 hours, a total of 8,056 customer-hours (Nebraska average 0.8 hours). That ranks 15th worst of 42 Nebraska counties and 2083rd of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
0.5
17,046 customers
Customer-hours out
8,056
Peak customers out
1,638
Outages ≥1,000 out
1
0 of 10,000+ · 76 total
Longest outage
3d
began July 14, 2015
Rank in state
15th/42
2083rd of 2,484 US

Compared with NE, the US

Dakota County, NE average hours without power per customer compared with state and national averages, 2015Dakota County 0.5 hours, Nebraska average 0.8 hours, US average 2.9 hoursDakota CountyDakota County0.5hNebraska averageNebraska average0.8hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Dakota County, NE customer-hours without power by month, 2015Jan 30, Feb 104, Mar 1, Apr 0, May 0, Jun 33, Jul 7,378, Aug 135, Sep 47, Oct 91, Nov 34, Dec 20302k4k6k8k30Jan104Feb1Mar0Apr0May33Jun7,378Jul135Aug47Sep91Oct34Nov203Dec
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Customer-hours; July was the worst month.

Dakota County year over year

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Dakota County, NE: average hours without power per customer by year2015: 0.5h; 2016: 0.5h; 2017: 0.5h; 2018: 0.5h, coverage 45%; 2019: 0.9h, coverage 46%; 2020: 0.1h, coverage 48%; 2021: 0.2h, coverage 48%; 2022: 3.8h, coverage 48%; 2023: 0.4h; 2024: 0.8h; 2025: 0.5h012340%50%100%0.5h20150.5h20160.5h20170.5h20180.9h20190.1h20200.2h20213.8h20220.4h20230.8h20240.5h2025
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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 Nebraska customers tracked each year.

Biggest outages in Dakota County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 18, 2015 04:30July 18, 2015 09:305h1,6383,249
2July 22, 2015 14:45July 22, 2015 15:0015m462116
3July 23, 2015 19:00July 23, 2015 19:3030m16181
4July 30, 2015 20:30July 30, 2015 22:302h7623
5October 7, 2015 16:45October 7, 2015 19:152h 30m5572
6December 18, 2015 07:00December 18, 2015 15:008h55197
7July 14, 2015 14:30July 17, 2015 15:153d543,845
8August 10, 2015 04:00August 10, 2015 05:301h 30m5127
9February 5, 2015 05:30February 5, 2015 08:152h 45m4685
10September 17, 2015 03:00September 17, 2015 03:1515m3910

Outage episodes by size in 2015: 3 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 Dakota 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
Nebraska Public Power District201544 min0.6044 min0.60
WAPA-- Western Area Power Administration-----
Northeast Power-----
City of Emerson - (NE)-----
City of South Sioux City-----

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 Nebraska's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 17,046 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. Dakota County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Dakota County, NE 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/nebraska/dakota-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON