massoutage

County annual report · FIPS 40105

2018 Nowata County, OK Power Outage Report

In 2018, customers in Nowata County, OK went without power for an average of 15.2 hours, a total of 41K customer-hours (Oklahoma average 2.7 hours). That ranks 4th worst of 77 Oklahoma counties and 364th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
15.2
2,678 customers
Customer-hours out
41K
Peak customers out
3,331
Outages ≥1,000 out
6
0 of 10,000+ · 406 total
Longest outage
1d 11h
began June 12, 2018
Rank in state
4th/77
364th of 2,798 US

Compared with OK, the US and 2017

Nowata County, OK average hours without power per customer compared with state and national averages, 2018Nowata County 15.2 hours, Oklahoma average 2.7 hours, US average 5.6 hours, Nowata County, 2017 5.2 hoursNowata CountyNowata County15.2hOklahoma averageOklahoma average2.7hUS averageUS average5.6hNowata County, 2017Nowata County, 20175.2h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

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Nowata County, OK customer-hours without power by month, 2018Jan 249, Feb 122, Mar 328, Apr 1,194, May 21K, Jun 14K, Jul 2,717, Aug 552, Sep 608, Oct 130, Nov 275, Dec 126010k20k30k249Jan122Feb328Mar1,194Apr21KMay14KJun2,717Jul552Aug608Sep130Oct275Nov126Dec
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Customer-hours; May 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, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1June 12, 2018 09:15June 13, 2018 20:451d 11h3,3316,712
2May 3, 2018 04:15May 3, 2018 12:458h 30m2,92716K
3June 22, 2018 10:30June 22, 2018 13:303h2,8955,119
4May 3, 2018 22:45May 4, 2018 03:154h 30m2,8722,700
5June 28, 2018 21:15June 29, 2018 00:303h 15m2,870730
6July 29, 2018 11:45July 29, 2018 16:004h 15m1,0071,439
7June 7, 2018 11:45June 7, 2018 14:453h302305
8July 28, 2018 23:45July 29, 2018 06:006h 15m254697
9May 19, 2018 21:15May 20, 2018 05:158h229583
10May 15, 2018 04:30May 15, 2018 20:0015h 30m1931,159

Outage episodes by size in 2018: 12 reached 100+ customers, 6 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 2018, 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 Oklahoma20182.1 hrs1.341.7 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 89% of Oklahoma's customers in 2018; 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, 2018, 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/2018/oklahoma/nowata-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON