massoutage

County annual report · FIPS 48353

2025 Nolan County, TX Power Outage Report

In 2025, customers in Nolan County, TX went without power for an average of 6.9 hours, a total of 60K customer-hours (Texas average 4.6 hours). That ranks 147th worst of 254 Texas counties and 1159th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
6.9
8,654 customers
Customer-hours out
60K
Peak customers out
2,355
Outages ≥1,000 out
5
0 of 10,000+ · 426 total
Longest outage
1d 16h
began March 4, 2025
Rank in state
147th/254
1159th of 3,000 US

Compared with TX, the US and 2024

Nolan County, TX average hours without power per customer compared with state and national averages, 2025Nolan County 6.9 hours, Texas average 4.6 hours, US average 5.9 hours, Nolan County, 2024 4.5 hoursNolan CountyNolan County6.9hTexas averageTexas average4.6hUS averageUS average5.9hNolan County, 2024Nolan County, 20244.5h
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Average hours without power per customer in 2025; last bar is this county in 2024.

Month by month

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Nolan County, TX customer-hours without power by month, 2025Jan 1,827, Feb 708, Mar 26K, Apr 7,663, May 1,932, Jun 8,570, Jul 1,967, Aug 2,472, Sep 4,091, Oct 2,123, Nov 1,676, Dec 350010k20k30k1,827Jan708Feb26KMar7,663Apr1,932May8,570Jun1,967Jul2,472Aug4,091Sep2,123Oct1,676Nov350Dec
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Customer-hours; March 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, 2025

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

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#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1March 14, 2025 16:30March 15, 2025 20:001d 3h2,3559,834
2March 4, 2025 05:30March 5, 2025 22:151d 16h1,40413K
3June 9, 2025 05:15June 10, 2025 00:4519h 30m1,1583,826
4January 29, 2025 14:30January 29, 2025 21:457h 15m1,126412
5February 28, 2025 14:00February 28, 2025 17:153h 15m1,090310
6June 5, 2025 10:15June 5, 2025 13:002h 45m7441,984
7August 8, 2025 15:30August 8, 2025 17:001h 30m736920
8November 22, 2025 18:15November 22, 2025 21:153h617214
9April 30, 2025 02:00April 30, 2025 03:001h493492
10April 4, 2025 23:45April 5, 2025 17:1517h 30m4912,230

Outage episodes by size in 2025: 38 reached 100+ customers, 5 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 2025, 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 Company20241.8 hrs1.151.7 hrs1.13
Taylor Electric Coop Inc - (TX)20246.2 hrs3.344.7 hrs3.05
Concho Valley Elec Coop Inc20246.5 hrs2.886.5 hrs2.88
Big Country 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 n/a of Texas's customers in 2025; 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, 2025, 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/2025/texas/nolan-county

summary CSVJSONyears CSVJSONmonths CSVJSONevents CSVJSONutilities CSVJSON