 and people in Houston trying to find the location of electricity blackouts found they could rely on Whataburger. After the hit from Hurricane Beryl, the city's largest electric utility was in the dark. Centerpoint Energy had no working outage map, so people used the Whataburger app to see which restaurants were open and had power. Joan Doniger, Bloomberg Radio. AM 1450, FM 99.3, KNSI. Speaking of all of those apps, U.S. Google Trends data.