At a press conference Thursday, San Antonio Mayor Ron Nirenberg told San Antonians to “remain calm” after Texas’ power grid operator warned of rolling power outages due to record energy demand. “There is a very strong probability of power outages throughout the state, including San Antonio, this afternoon and evening,” Nirenberg told reporters. CPS Energy CEO Rudy Garza said customers shouldn’t expect outages to last longer than “an hour or two” at most, adding that most would end within 10 to 15 minutes.