massoutage

County annual report · FIPS 48211

2018 Hemphill County, TX Power Outage Report

In 2018, customers in Hemphill County, TX went without power for an average of 3.5 hours, a total of 4,196 customer-hours (Texas average 2.4 hours). That ranks 129th worst of 253 Texas counties and 1358th of 2,798 nationally.

Summary data CSVJSON
Avg hrs / customer
3.5
1,189 customers
Customer-hours out
4,196
Peak customers out
1,445
Outages ≥1,000 out
1
0 of 10,000+ · 55 total
Longest outage
16h 45m
began June 23, 2018
Rank in state
129th/253
1358th of 2,798 US

Compared with TX, the US and 2017

Hemphill County, TX average hours without power per customer compared with state and national averages, 2018Hemphill County 3.5 hours, Texas average 2.4 hours, US average 5.6 hours, Hemphill County, 2017 0.6 hoursHemphill CountyHemphill County3.5hTexas averageTexas average2.4hUS averageUS average5.6hHemphill County, 2017Hemphill County, 20170.6h
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Average hours without power per customer in 2018; last bar is this county in 2017.

Month by month

CSVJSON
Hemphill County, TX customer-hours without power by month, 2018Jan 9, Feb 6, Mar 8, Apr 40, May 88, Jun 3,246, Jul 762, Aug 10, Sep 10, Oct 5, Nov 7, Dec 701k2k3k4k9Jan6Feb8Mar40Apr88May3,246Jun762Jul10Aug10Sep5Oct7Nov7Dec
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Customer-hours; June was the worst month.

Hemphill County year over year

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Hemphill County, TX: average hours without power per customer by year2015: 6.1h; 2016: 1.2h; 2017: 0.6h; 2018: 3.5h, coverage 90%; 2019: 8.1h, coverage 93%; 2020: 30.5h, coverage 63%; 2021: 3.0h, coverage 94%; 2022: 1.1h, coverage 93%; 2023: 0.8h; 2024: 2.3h; 2025: 6.8h0102030400%50%100%6.1h20151.2h20160.6h20173.5h20188.1h201930.5h20203.0h20211.1h20220.8h20232.3h20246.8h2025
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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 Texas customers tracked each year.

Biggest outages in Hemphill 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 23, 2018 02:45June 23, 2018 19:3016h 45m1,4453,229
2July 7, 2018 00:30July 7, 2018 03:152h 45m321754
3April 18, 2018 01:30April 18, 2018 02:301h4138
4May 21, 2018 14:15May 21, 2018 15:451h 30m3527
5May 24, 2018 03:00May 24, 2018 04:301h 30m3248
6January 23, 2018 19:15January 23, 2018 19:4530m95
7May 26, 2018 00:30May 26, 2018 01:451h 15m68
8June 22, 2018 10:30June 22, 2018 13:453h 15m610
9December 7, 2018 13:15December 7, 2018 14:301h 15m65
10July 23, 2018 01:15July 23, 2018 02:151h55

Outage episodes by size in 2018: 2 reached 100+ customers, 1 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 Hemphill 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
Southwestern Public Service Co20182.0 hrs1.081.9 hrs1.06
Greenbelt Electric Coop, Inc-----
North Plains Electric Coop Inc-----

About this data

  • Outage figures come from DOE/ORNL EAGLE-I, which records customers out by county every 15 minutes. EAGLE-I tracked about 90% of Texas's customers in 2018; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 1,189 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. Hemphill County has data for 2015–2025.

Cite this report

MassOutage (massoutage.com), Hemphill County, TX 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/texas/hemphill-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON