massoutage

County annual report · FIPS 31025

2015 Cass County, NE Power Outage Report

In 2015, customers in Cass County, NE went without power for an average of 2.1 hours, a total of 26K customer-hours (Nebraska average 0.8 hours). That ranks 3rd worst of 42 Nebraska counties and 1194th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
2.1
12,382 customers
Customer-hours out
26K
Peak customers out
1,166
Outages ≥1,000 out
4
0 of 10,000+ · 348 total
Longest outage
1d 16h
began September 7, 2015
Rank in state
3rd/42
1194th of 2,484 US

Compared with NE, the US

Cass County, NE average hours without power per customer compared with state and national averages, 2015Cass County 2.1 hours, Nebraska average 0.8 hours, US average 2.9 hoursCass CountyCass County2.1hNebraska 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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Cass County, NE customer-hours without power by month, 2015Jan 27, Feb 569, Mar 11, Apr 0, May 90, Jun 1,080, Jul 5,611, Aug 5,274, Sep 7,328, Oct 1,594, Nov 3,938, Dec 49602k4k6k8k27Jan569Feb11Mar0Apr90May1,080Jun5,611Jul5,274Aug7,328Sep1,594Oct3,938Nov496Dec
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Customer-hours; September was the worst month.

Cass County year over year

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Cass County, NE: average hours without power per customer by year2015: 2.1h; 2016: 2.5h; 2017: 23.5h; 2018: 3.7h, coverage 45%; 2019: 8.6h, coverage 46%; 2020: 5.4h, coverage 48%; 2021: 22.0h, coverage 48%; 2022: 6.1h, coverage 48%; 2023: 3.7h; 2024: 11.7h; 2025: 7.2h01020300%50%100%2.1h20152.5h201623.5h20173.7h20188.6h20195.4h202022.0h20216.1h20223.7h202311.7h20247.2h2025
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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 Cass County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1November 3, 2015 14:30November 3, 2015 14:4515m1,166292
2August 15, 2015 18:00August 16, 2015 02:308h 30m1,1422,606
3July 26, 2015 10:15July 26, 2015 21:1511h1,0982,992
4September 7, 2015 00:15September 8, 2015 16:451d 16h1,0136,032
5August 3, 2015 00:15August 3, 2015 00:3015m907227
6October 29, 2015 20:15October 30, 2015 00:003h 45m810839
7November 26, 2015 23:15November 27, 2015 08:309h 15m7192,498
8July 22, 2015 19:15July 23, 2015 00:455h 30m613695
9October 9, 2015 21:30October 10, 2015 03:155h 45m277246
10August 9, 2015 05:15August 10, 2015 05:151d1851,508

Outage episodes by size in 2015: 13 reached 100+ customers, 4 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 Cass 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
Omaha Public Power District-----
Village of Greenwood - (NE)-----

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 ÷ 12,382 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. Cass County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Cass 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/cass-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON