The 2021 Texas Power Crisis: distribution, duration, and disparities

Area of Science:

• Environmental Health
• Public Health
• Disaster Medicine

Background:

• The 2021 Texas Power Crisis, caused by a winter storm, led to widespread power outages from February 10-27.
• Large-scale power outages pose significant health risks, particularly for vulnerable populations relying on electricity for medical equipment.
• Limited research has explored sociodemographic disparities in power outage impacts.

Purpose of the Study:

• To analyze the distribution and duration of power outages during the 2021 Texas Power Crisis.
• To investigate environmental justice issues related to the crisis.
• To identify disparities in outage exposure and preparedness among different demographic groups.

Main Methods:

• Utilized hourly county-level power outage data for Texas.
• Assessed geographic clustering of outages and their association with vulnerability measures (racial, social, political, medical).
• Employed a non-representative internet survey to examine individual preparedness and experiences.

Main Results:

• Nearly one-third of Texas households/businesses experienced power loss at the peak of the crisis.
• Counties with higher Hispanic populations showed a tendency for more severe outages (OR=1.16).
• Black respondents reported longer outages (24+ hours); younger individuals and those with lower education were less prepared.

Conclusions:

• Power outages can be life-threatening, with disproportionate impacts on vulnerable and marginalized groups.
• Climate and energy policies must prioritize equitable solutions for power outages and disaster management.
• Future grid improvements and disaster preparedness strategies need to address identified disparities.