massoutage

County annual report · FIPS 40133

2015 Seminole County, OK Power Outage Report

In 2015, customers in Seminole County, OK went without power for an average of 2.7 hours, a total of 37K customer-hours (Oklahoma average 5.1 hours). That ranks 36th worst of 74 Oklahoma counties and 995th of 2,484 nationally.

Summary data CSVJSON
Avg hrs / customer
2.7
13,650 customers
Customer-hours out
37K
Peak customers out
1,486
Outages ≥1,000 out
3
0 of 10,000+ · 505 total
Longest outage
1d 21h
began May 11, 2015
Rank in state
36th/74
995th of 2,484 US

Compared with OK, the US

Seminole County, OK average hours without power per customer compared with state and national averages, 2015Seminole County 2.7 hours, Oklahoma average 5.1 hours, US average 2.9 hoursSeminole CountySeminole County2.7hOklahoma 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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Seminole County, OK customer-hours without power by month, 2015Jan 336, Feb 20, Mar 45, Apr 781, May 12K, Jun 4,291, Jul 4,704, Aug 2,805, Sep 7,745, Oct 1,743, Nov 1,707, Dec 51705k10k15k336Jan20Feb45Mar781Apr12KMay4,291Jun4,704Jul2,805Aug7,745Sep1,743Oct1,707Nov517Dec
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Customer-hours; May was the worst month.

Seminole County year over year

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Seminole County, OK: average hours without power per customer by year2015: 2.7h; 2016: 3.5h; 2017: 4.2h; 2018: 4.3h, coverage 89%; 2019: 5.1h, coverage 90%; 2020: 4.6h, coverage 93%; 2021: 4.7h, coverage 93%; 2022: 23.5h, coverage 94%; 2023: 8.2h; 2024: 8.3h; 2025: 5.9h01020300%50%100%2.7h20153.5h20164.2h20174.3h20185.1h20194.6h20204.7h202123.5h20228.2h20238.3h20245.9h2025
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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 Seminole County, 2015

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1September 20, 2015 12:00September 20, 2015 17:155h 15m1,4861,831
2August 27, 2015 11:45August 27, 2015 16:455h1,199619
3August 6, 2015 21:30August 7, 2015 00:453h 15m1,133853
4July 16, 2015 04:30July 16, 2015 07:002h 30m8641,626
5September 21, 2015 13:15September 21, 2015 18:004h 45m813709
6August 29, 2015 03:45August 29, 2015 05:001h 15m590348
7October 10, 2015 14:45October 10, 2015 18:003h 15m514624
8May 25, 2015 18:45May 26, 2015 12:4518h4573,552
9June 14, 2015 09:45June 14, 2015 23:0013h 15m411893
10June 18, 2015 18:00June 19, 2015 07:0013h3961,207

Outage episodes by size in 2015: 44 reached 100+ customers, 3 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 Seminole 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
Canadian Valley Elec Coop, Inc20152.7 hrs0.60--
East Central Oklahoma Elec Coop Inc20153.7 hrs1.733.7 hrs1.73
Oklahoma Gas & Electric Co-----
People's Electric Cooperative-----

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 ÷ 13,650 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. Seminole County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Seminole 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/seminole-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON