Ultimately, the main difference between an electricity provider and an electric utility comes down to what they service and how. Electricity providers deal with purchasing and marketing electricity to customers. Electric utilities handle the poles and wires that service your home. Separating these roles means customers can shop for a competitive electricity rate and still receive reliable electric service.
Texas deregulated most of the state's electricity markets in 2002, a move aimed at lowering electricity costs by letting consumers choose their own electric power providers and their own plans. Some parts of Texas continued to be regulated, including those whose power is proved by municipally-owned utilities, electric cooperatives and investor-owned utilities that operate outside the state's primary power grid.