massoutage

County annual report · FIPS 40055

2018 Greer County, OK Power Outage Report

In 2018, customers in Greer County, OK went without power for an average of 0.7 hours, a total of 2,925 customer-hours (Oklahoma average 2.7 hours). That ranks 72nd worst of 77 Oklahoma counties and 2418th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
0.7
3,967 customers
Customer-hours out
2,925
Peak customers out
223
Outages ≥1,000 out
0
0 of 10,000+ · 50 total
Longest outage
10h
began June 14, 2018
Rank in state
72nd/77
2418th of 2,798 US

Compared with OK, the US and 2017

Greer County, OK average hours without power per customer compared with state and national averages, 2018Greer County 0.7 hours, Oklahoma average 2.7 hours, US average 5.6 hours, Greer County, 2017 0.4 hoursGreer CountyGreer County0.7hOklahoma averageOklahoma average2.7hUS averageUS average5.6hGreer County, 2017Greer County, 20170.4h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Greer County, OK customer-hours without power by month, 2018Jan 453, Feb 3, Mar 20, Apr 13, May 1,106, Jun 431, Jul 226, Aug 337, Sep 1, Oct 227, Nov 50, Dec 5705001k1.5k453Jan3Feb20Mar13Apr1,106May431Jun226Jul337Aug1Sep227Oct50Nov57Dec
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Customer-hours; May was the worst month.

Greer County year over year

CSVJSON
Greer County, OK: average hours without power per customer by year2015: 2.4h; 2016: 0.6h; 2017: 0.4h; 2018: 0.7h, coverage 89%; 2019: 1.8h, coverage 90%; 2020: 2.0h, coverage 93%; 2021: 0.4h, coverage 93%; 2022: 0.8h, coverage 94%; 2023: 0.8h; 2024: 0.6h; 2025: 0.5h01230%50%100%2.4h20150.6h20160.4h20170.7h20181.8h20192.0h20200.4h20210.8h20220.8h20230.6h20240.5h2025
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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 Greer County, 2018

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1May 9, 2018 01:30May 9, 2018 05:454h 15m223503
2January 11, 2018 11:15January 11, 2018 15:003h 45m121453
3June 23, 2018 02:30June 23, 2018 03:301h120120
4May 30, 2018 01:45May 30, 2018 04:152h 30m119268
5October 7, 2018 12:15October 7, 2018 16:154h116212
6June 13, 2018 09:45June 13, 2018 11:301h 45m11490
7August 15, 2018 05:15August 15, 2018 13:007h 45m68307
8May 29, 2018 13:15May 29, 2018 16:453h 30m67235
9May 7, 2018 18:30May 7, 2018 20:001h 30m5269
10December 4, 2018 19:45December 4, 2018 20:451h4141

Outage episodes by size in 2018: 6 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 Greer 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
Northfork Electric Coop, Inc20183.7 hrs-2.7 hrs-
Southwest Rural Elec Assn Inc-----
Harmon Electric Assn Inc-----
City of Granite - (OK)-----
City of Mangum - (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 ÷ 3,967 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. Greer County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Greer 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/greer-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON