The cost of keeping the lights on: What Texas' next governor could do to lower electricity bills

For some Houston families, keeping the lights on is becoming harder to afford.

"It's extremely frustrating. It's just getting to the point where it's becoming unaffordable and it's something that we need," said Celeste Crutchfield.

Electricity prices have increased about 40% over the past five years, according to University of Houston energy expert Ramanan Krishnamoorti.