Among the sources contributing to power outages in Texas are frozen wind turbines from the winter storm.
In order to deal with the loss of electricity during the storm, rolling blackout orders were issued Monday.
Texas GOP Gov. Greg Abbott tweeted that “the ability of some companies that generate the power has been frozen.”
He also said the problem included natural gas and coal generators.
The Electric Reliability Council of Texas says the power outages may last through Tuesday.
Almost 4.5 million Texans are out of power, according to poweroutage.us, with Houston and Galveston being the hardest hit.
Parts of Texas saw temperatures in the single digits prompting the electricity council to tell residents to turn off non-essential lights and appliances and turn down thermostats to 68 degrees.