“Retail electricity providers” began offering the sale of electricity supply shortly after deregulation began. Texans are not required to switch to a retail electricity provider, and will continue to receive the supply of electricity from their default utility until they decide to switch. Utilities have no incentive to supply electricity since they are required by law to resell electric supply at no profit. The utilities can only profit from the transmission and delivery of the electricity – which is not affected by which company sells the supply of electricity. Since the utilities often charge higher rates than electricity providers, there is little reason to stay with the utility for electric supply.