Equipment failure at a substation caused 8,000 customers in Texas City and La Marque to lose power for hours Wednesday evening, Texas New Mexico Power Co. officials said Thursday.
“We’re investigating what caused the failure,” said Eric Paul, spokesman for Texas New Mexico Power.
Power was restored to all 8,000 customers by about midnight, Paul said.
The outage began at about 5:30 p.m.
Most of the outages were in Texas City, in an area between Interstate 45, FM 1764 and state Highway 146.
In La Marque, the outage knocked out some lights at intersections, the city said.
Some power companies, including Entergy, which serves the Bolivar Peninsula, had asked customers to conserve power on Wednesday night because of expected heavy demand on the power grid. Frigid weather had caused the heavy demand as residents worked to stay warm.
Texas New Mexico Power restored power to the 8,000 customers in segments through the evening, Paul said.
The outages came as temperatures in Galveston County fell below freezing.