massoutage

County annual report · FIPS 48309

2025 McLennan County, TX Power Outage Report

In 2025, customers in McLennan County, TX went without power for an average of 5.5 hours, a total of 556K customer-hours (Texas average 4.6 hours). That ranks 170th worst of 254 Texas counties and 1396th of 3,000 nationally.

Summary data CSVJSON
Avg hrs / customer
5.5
101,960 customers
Customer-hours out
556K
Peak customers out
19,268
Outages ≥1,000 out
40
2 of 10,000+ · 750 total
Longest outage
3d 22h
began April 30, 2025
Rank in state
170th/254
1396th of 3,000 US

Compared with TX, the US and 2024

McLennan County, TX average hours without power per customer compared with state and national averages, 2025McLennan County 5.5 hours, Texas average 4.6 hours, US average 5.9 hours, McLennan County, 2024 8.3 hoursMcLennan CountyMcLennan County5.5hTexas averageTexas average4.6hUS averageUS average5.9hMcLennan County, 2024McLennan County, 20248.3h
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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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McLennan County, TX customer-hours without power by month, 2025Jan 13K, Feb 17K, Mar 178K, Apr 84K, May 64K, Jun 47K, Jul 30K, Aug 22K, Sep 9,772, Oct 44K, Nov 38K, Dec 11K050k100k150k200k13KJan17KFeb178KMar84KApr64KMay47KJun30KJul22KAug9,772Sep44KOct38KNov11KDec
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Customer-hours; March was the worst month.

McLennan County year over year

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McLennan County, TX: average hours without power per customer by year2015: 2.5h; 2016: no data; 2017: 0.3h; 2018: 2.8h, coverage 90%; 2019: 4.2h, coverage 93%; 2020: 2.7h, coverage 63%; 2021: 23.9h, coverage 94%; 2022: 3.6h, coverage 93%; 2023: 6.3h; 2024: 8.3h; 2025: 5.5h01020300%50%100%2.5h2015n/a20160.3h20172.8h20184.2h20192.7h202023.9h20213.6h20226.3h20238.3h20245.5h2025
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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 Texas customers tracked each year.

Biggest outages in McLennan County, 2025

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

CSVJSON
#Started (UTC)Ended (UTC)DurationPeak outCustomer-hours
1April 30, 2025 12:45May 4, 2025 11:153d 22h19,26825K
2March 4, 2025 07:00March 7, 2025 11:153d 4h11,901157K
3April 24, 2025 13:30April 26, 2025 12:151d 22h9,10957K
4July 20, 2025 17:45July 21, 2025 05:4512h5,1114,003
5November 20, 2025 21:15November 22, 2025 02:301d 5h4,67217K
6October 25, 2025 03:00October 27, 2025 04:452d 1h4,65531K
7May 7, 2025 06:00May 7, 2025 17:4511h 45m4,2852,217
8February 18, 2025 21:15February 20, 2025 17:451d 20h4,0046,949
9November 20, 2025 10:30November 20, 2025 12:452h 15m3,1193,021
10May 26, 2025 09:45May 28, 2025 06:151d 20h3,02917K

Outage episodes by size in 2025: 150 reached 100+ customers, 40 reached 1,000+ customers, 2 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 McLennan County reported on EIA Form 861 for 2025, or their most recent earlier filing. Utility-wide figures, not county-specific.

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UtilityEIA yearSAIDISAIFISAIDI excl. major eventsSAIFI excl. major events
Oncor Electric Delivery Company LLC20173.4 hrs1.692.4 hrs1.49
Navasota Valley Elec Coop, Inc202429.1 hrs4.4414.1 hrs3.64
Heart of Texas Electric Coop20246.0 hrs2.175.0 hrs2.01
HILCO Electric Cooperative, Inc.20242.1 hrs1.352.0 hrs1.32
Texas-New Mexico Power Co-----

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 ÷ 101,960 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. McLennan County has data for 2015, 2017–2025.

Cite this report

MassOutage (massoutage.com), McLennan 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/mclennan-county

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