massoutage

County annual report · FIPS 48353

2017 Nolan County, TX Power Outage Report

In 2017, customers in Nolan County, TX went without power for an average of 0.1 hours, a total of 873 customer-hours (Texas average 1.6 hours). That ranks 205th worst of 249 Texas counties and 2568th of 2,786 nationally.

Summary data CSVJSON
Avg hrs / customer
0.1
8,654 customers
Customer-hours out
873
Peak customers out
178
Outages ≥1,000 out
0
0 of 10,000+ · 40 total
Longest outage
7h 30m
began December 27, 2017
Rank in state
205th/249
2568th of 2,786 US

Compared with TX, the US and 2015

Nolan County, TX average hours without power per customer compared with state and national averages, 2017Nolan County 0.1 hours, Texas average 1.6 hours, US average 7.4 hours, Nolan County, 2015 5.0 hoursNolan CountyNolan County0.1hTexas averageTexas average1.6hUS averageUS average7.4hNolan County, 2015Nolan County, 20155.0h
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Average hours without power per customer in 2017; last bar is this county in 2015.

Month by month

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Nolan County, TX customer-hours without power by month, 2017Jan 0, Feb 0, Mar 0, Apr 0, May 0, Jun 0, Jul 0, Aug 0, Sep 0, Oct 0, Nov 38, Dec 83502505007501k0Jan0Feb0Mar0Apr0May0Jun0Jul0Aug0Sep0Oct38Nov835Dec
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Customer-hours; December was the worst month.

Nolan County year over year

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Nolan County, TX: average hours without power per customer by year2015: 5.0h; 2016: no data; 2017: 0.1h; 2018: 2.8h, coverage 90%; 2019: 2.8h, coverage 93%; 2020: 6.1h, coverage 63%; 2021: 21.4h, coverage 94%; 2022: 8.3h, coverage 93%; 2023: 10.5h; 2024: 4.5h; 2025: 6.9h01020300%50%100%5.0h2015n/a20160.1h20172.8h20182.8h20196.1h202021.4h20218.3h202210.5h20234.5h20246.9h2025
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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 Texas customers tracked each year.

Biggest outages in Nolan County, 2017

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1December 17, 2017 17:45December 17, 2017 19:151h 30m178224
2December 15, 2017 15:00December 15, 2017 16:001h8672
3December 30, 2017 16:00December 30, 2017 18:002h4919
4December 26, 2017 21:00December 27, 2017 02:305h 30m39190
5December 18, 2017 10:00December 18, 2017 11:301h 30m2812
6December 28, 2017 00:15December 28, 2017 06:156h2082
7December 29, 2017 20:00December 29, 2017 21:301h 30m1015
8December 18, 2017 14:45December 18, 2017 18:454h724
9December 22, 2017 07:45December 22, 2017 10:302h 45m713
10December 7, 2017 21:15December 7, 2017 21:3015m62

Outage episodes by size in 2017: 1 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 Nolan County reported on EIA Form 861 for 2017, or their most recent earlier filing. Utility-wide figures, not county-specific.

CSVJSON
UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Oncor Electric Delivery Company LLC20173.4 hrs1.692.4 hrs1.49
AEP Texas North Company20172.9 hrs1.581.9 hrs1.44
Concho Valley Elec Coop Inc20179.8 hrs4.045.9 hrs3.42
Big Country Electric Coop, Inc-----
Taylor Electric Coop Inc - (TX)-----

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 Texas's customers in 2017; utilities it does not see are not counted.
  • Hours per customer = outage customer-minutes ÷ 8,654 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. Nolan County has data for 2015, 2017–2025.

Cite this report

MassOutage (massoutage.com), Nolan County, TX annual power outage report, 2017, 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/2017/texas/nolan-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON