massoutage

County annual report · FIPS 31163

2023 Sherman County, NE Power Outage Report

In 2023, customers in Sherman County, NE went without power for an average of 0.2 hours, a total of 384 customer-hours (Nebraska average 1.2 hours). That ranks 39th worst of 53 Nebraska counties and 2900th of 2,977 nationally.

Summary data CSVJSON
Avg hrs / customer
0.2
2,413 customers
Customer-hours out
384
Peak customers out
120
Outages ≥1,000 out
0
0 of 10,000+ · 18 total
Longest outage
9h 30m
began May 6, 2023
Rank in state
39th/53
2900th of 2,977 US

Compared with NE, the US and 2022

Sherman County, NE average hours without power per customer compared with state and national averages, 2023Sherman County 0.2 hours, Nebraska average 1.2 hours, US average 7.1 hours, Sherman County, 2022 1.5 hoursSherman CountySherman County0.2hNebraska averageNebraska average1.2hUS averageUS average7.1hSherman County, 2022Sherman County, 20221.5h
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Average hours without power per customer in 2023; last bar is this county in 2022.

Month by month

CSVJSON
Sherman County, NE customer-hours without power by month, 2023Jan 1, Feb 0, Mar 28, Apr 1, May 137, Jun 6, Jul 185, Aug 0, Sep 26, Oct 0, Nov 1, Dec 10501001502001Jan0Feb28Mar1Apr137May6Jun185Jul0Aug26Sep0Oct1Nov1Dec
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Customer-hours; July was the worst month.

Sherman County year over year

CSVJSON
Sherman County, NE: average hours without power per customer by year2015: no data; 2016: no data; 2017: no data; 2018: no data; 2019: 0.0h, coverage 46%; 2020: 0.5h, coverage 48%; 2021: 0.9h, coverage 48%; 2022: 1.5h, coverage 48%; 2023: 0.2h; 2024: 0.3h; 2025: 4.2h02460%50%100%n/a2015n/a2016n/a2017n/a20180.0h20190.5h20200.9h20211.5h20220.2h20230.3h20244.2h2025
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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 Sherman County, 2023

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1July 28, 2023 17:00July 28, 2023 18:451h 45m120155
2May 6, 2023 05:15May 6, 2023 14:459h 30m38137
3September 21, 2023 02:30September 21, 2023 04:302h1323
4March 17, 2023 14:15March 17, 2023 16:302h 15m1125
5July 31, 2023 18:15July 31, 2023 20:152h1020
6July 29, 2023 10:45July 29, 2023 15:004h 15m38
7June 26, 2023 13:30June 26, 2023 18:305h26
8July 20, 2023 18:00July 20, 2023 19:001h22
9September 22, 2023 07:45September 22, 2023 09:001h 15m22
10January 12, 2023 19:30January 12, 2023 20:1545m11

Outage episodes by size in 2023: 1 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 Sherman County reported on EIA Form 861 for 2023, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Nebraska Public Power District202370 min0.6070 min0.60
Custer Public Power District202389 min0.8082 min0.58
Dawson Power District-----
Loup Valleys Rural P P D-----

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 2023; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,413 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. Sherman County has data for 2019–2025.

Cite this report

MassOutage (massoutage.com), Sherman County, NE annual power outage report, 2023, 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/2023/nebraska/sherman-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON