Facing their first major test since Hurricane Beryl, officials with CenterPoint Energy on Monday expressed optimism about preparations across southeast Texas in advance of the potentially historic Winter Storm Enzo.

A local energy expert, meanwhile, says other factors also contributed to relatively few power outages as snow blanketed the region on Tuesday and temperatures plunged into the teens early Wednesday morning.

Crews across the country join CenterPoint to take on the winter storm. Here’s how they’re ensuring power and safety for Houston residents.