Electricity rates in Texas are not fixed. Your rate can vary greatly depending on your usage and your electric plan. Some plans have relatively flat rates, while others can be all over the place. This means that you could end up paying 7¢ for 999 kWhs and 8.5¢ for 1001 kWhs. That would be a 16% increase because you microwaved a few potatoes. Learn more on the different plan types here.
Residents get to choose their provider as there are many different ones serving the area. With a total of 7.5 million customers, Oncor Electric Delivery manages Fort Worth's utility service areas and distributes power to residences. Although residents can only have Oncor Electric Delivery as their utility company, they get their choice of suppliers. Several energy providers serve Fort Worth, and it can sometimes be hard for people to know which service to select. Choose Energy helps connect consumers with reliable energy companies such as TriEagle Energy, TXU Energy and Direct Energy.