massoutage

County annual report · FIPS 40105

2015 Nowata County, OK Power Outage Report

In 2015, customers in Nowata County, OK went without power for an average of 5.2 hours, a total of 14K customer-hours (Oklahoma average 5.1 hours). That ranks 21st worst of 74 Oklahoma counties and 539th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
5.2
2,678 customers
Customer-hours out
14K
Peak customers out
798
Outages ≥1,000 out
0
0 of 10,000+ · 341 total
Longest outage
2d 14h
began June 12, 2015
Rank in state
21st/74
539th of 2,484 US

Compared with OK, the US

Nowata County, OK average hours without power per customer compared with state and national averages, 2015Nowata County 5.2 hours, Oklahoma average 5.1 hours, US average 2.9 hoursNowata CountyNowata County5.2hOklahoma averageOklahoma average5.1hUS averageUS average2.9h
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Average hours without power per customer in 2015.

Month by month

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Nowata County, OK customer-hours without power by month, 2015Jan 293, Feb 1,402, Mar 998, Apr 525, May 781, Jun 1,302, Jul 1,331, Aug 1,014, Sep 2,141, Oct 871, Nov 1,818, Dec 1,47401k2k3k293Jan1,402Feb998Mar525Apr781May1,302Jun1,331Jul1,014Aug2,141Sep871Oct1,818Nov1,474Dec
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Customer-hours; September was the worst month.

Nowata County year over year

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Nowata County, OK: average hours without power per customer by year2015: 5.2h; 2016: 18.5h; 2017: 5.2h; 2018: 15.2h, coverage 89%; 2019: 9.0h, coverage 90%; 2020: 2.8h, coverage 93%; 2021: 5.8h, coverage 93%; 2022: 8.6h, coverage 94%; 2023: 11.3h; 2024: 9.1h; 2025: 9.2h051015200%50%100%5.2h201518.5h20165.2h201715.2h20189.0h20192.8h20205.8h20218.6h202211.3h20239.1h20249.2h2025
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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 Oklahoma customers tracked each year.

Biggest outages in Nowata County, 2015

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
1November 5, 2015 18:15November 5, 2015 21:002h 45m798459
2December 30, 2015 16:30December 30, 2015 17:301h788788
3September 8, 2015 14:30September 8, 2015 18:153h 45m7561,171
4September 16, 2015 15:45September 16, 2015 18:152h 30m754574
5February 16, 2015 00:45February 16, 2015 10:159h 30m288613
6June 18, 2015 13:00June 18, 2015 17:154h 15m28676
7June 12, 2015 22:30June 15, 2015 12:302d 14h2841,117
8October 16, 2015 08:00October 16, 2015 13:305h 30m190536
9November 1, 2015 08:15November 1, 2015 11:453h 30m187655
10July 23, 2015 11:30July 23, 2015 18:006h 30m178909

Outage episodes by size in 2015: 16 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 Nowata 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
Public Service Co of Oklahoma20156.7 hrs1.581.9 hrs1.17
Verdigris Valley Elec Coop Inc20137.1 hrs2.355.0 hrs1.98
Northeast Oklahoma Electric Co-----
Town of South Coffeyville - (OK)-----

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 Oklahoma's customers in 2015; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 2,678 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. Nowata County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Nowata County, OK 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/oklahoma/nowata-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON