massoutage

County annual report · FIPS 31127

2021 Nemaha County, NE Power Outage Report

In 2021, customers in Nemaha County, NE went without power for an average of 8.1 hours, a total of 22K customer-hours (Nebraska average 8.3 hours). That ranks 10th worst of 54 Nebraska counties and 930th of 2,974 nationally.

Summary data CSVJSON
Avg hrs / customer
8.1
2,736 customers
Customer-hours out
22K
Peak customers out
707
Outages ≥1,000 out
0
0 of 10,000+ · 116 total
Longest outage
3d 6h
began December 15, 2021
Rank in state
10th/54
930th of 2,974 US

Compared with NE, the US and 2020

Nemaha County, NE average hours without power per customer compared with state and national averages, 2021Nemaha County 8.1 hours, Nebraska average 8.3 hours, US average 8.9 hours, Nemaha County, 2020 2.4 hoursNemaha CountyNemaha County8.1hNebraska averageNebraska average8.3hUS averageUS average8.9hNemaha County, 2020Nemaha County, 20202.4h
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Average hours without power per customer in 2021; last bar is this county in 2020.

Month by month

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Nemaha County, NE customer-hours without power by month, 2021Jan 35, Feb 37, Mar 44, Apr 36, May 73, Jun 1,229, Jul 2,107, Aug 2,263, Sep 119, Oct 982, Nov 21, Dec 15K05k10k15k20k35Jan37Feb44Mar36Apr73May1,229Jun2,107Jul2,263Aug119Sep982Oct21Nov15KDec
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Customer-hours; December was the worst month.

Nemaha County year over year

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Nemaha County, NE: average hours without power per customer by year2015: 1.9h; 2016: 2.3h; 2017: 1.3h; 2018: 1.1h, coverage 45%; 2019: 4.3h, coverage 46%; 2020: 2.4h, coverage 48%; 2021: 8.1h, coverage 48%; 2022: 1.6h, coverage 48%; 2023: 1.2h; 2024: 3.7h; 2025: 2.3h02.557.5100%50%100%1.9h20152.3h20161.3h20171.1h20184.3h20192.4h20208.1h20211.6h20221.2h20233.7h20242.3h2025
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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 Nemaha County, 2021

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 15, 2021 12:45December 15, 2021 13:1530m707226
2December 15, 2021 18:45December 19, 2021 01:153d 6h43314K
3June 24, 2021 09:00June 24, 2021 22:1513h 15m374878
4August 31, 2021 08:45August 31, 2021 16:157h 30m348975
5August 12, 2021 18:15August 12, 2021 22:154h343676
6September 1, 2021 23:45September 2, 2021 00:1530m16784
7October 1, 2021 00:15October 1, 2021 03:303h 15m167543
8October 1, 2021 18:30October 1, 2021 20:151h 45m167292
9January 15, 2021 15:00January 15, 2021 15:1515m10326
10February 22, 2021 16:00February 22, 2021 16:1515m10226

Outage episodes by size in 2021: 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 Nemaha County reported on EIA Form 861 for 2021, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Nebraska Public Power District20214.0 hrs1.1471 min0.66
Omaha Public Power District202115.4 hrs1.4068 min0.52
Auburn Board of Public Works-----
City of Nebraska 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 48% of Nebraska's customers in 2021; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,736 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. Nemaha County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Nemaha County, NE annual power outage report, 2021, 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/2021/nebraska/nemaha-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON