massoutage

2021 Texas Power Outage Report

In 2021, the average Texas customer went without power for about 21.0 hours — the 4th worst of any US state that year, 2.9× the state's decade average. Figures from DOE/ORNL EAGLE-I.

Avg hrs / customer
21.0
Peak customers out
455,986
Rank (worst state)
4th
Counties affected
20

Texas outages over the decade

Average hours without power per customer, 2021 highlighted.

1.9h20151.2h20161.6h20172.4h20184.9h20195.3h202021.0h20214.0h20228.1h202325.5h20244.6h2025

Hardest-hit Texas counties in 2021

By peak customers out during the year's worst event.

1Harris County455,9862Tarrant County367,3163Dallas County358,6504Bexar County329,7825Brazoria County318,2426Travis County273,8497Fort Bend County171,6608Galveston County164,6069Collin County143,80310Montgomery County135,41211Williamson County134,41812Wharton County128,74613Denton County125,24514Hidalgo County124,33615Waller County96,04816Austin County79,58817Nueces County53,74318Hays County53,59819Bell County53,03120Comal County50,553

Biggest Texas outages of 2021

CountyBeganPeak customers out
Harris CountyJanuary 1, 2021455,986
Tarrant CountyFebruary 11, 2021367,316
Dallas CountyFebruary 8, 2021358,650
Bexar CountyFebruary 13, 2021329,782
Brazoria CountyFebruary 14, 2021318,242
Travis CountyFebruary 11, 2021273,849
Fort Bend CountyFebruary 16, 2021171,660
Galveston CountyFebruary 15, 2021164,606
Collin CountyFebruary 14, 2021143,803
Montgomery CountyFebruary 14, 2021135,412
Texas by year:20252024202320222020201920182017
Other states in 2021:LAMIWVORMSKY

Part of the 2021 US Power Outage Report. Source: DOE/ORNL EAGLE-I. “Avg hours per customer” is a SAIDI-like measure (outage customer-minutes ÷ tracked customers); coverage varies by year.