One of the benchmarks of a successful free market is the range of choice provided to customers. Choice can be viewed both in terms of the number of firms active in the market as well as the variety of products those firms offer to consumers. In the first decade of retail electric deregulation in Texas, the market experienced dramatic changes in both metrics. In 2002, residential customers in the Dallas-Fort area could choose between 10 retail electric providers offers a total of 11 price plans. By the end of 2012, there were 45 retail electric providers offering 258 different price plans to residential customers in that market. Similar increases in the number of retail electric providers and available plans have been realized in other deregulated electricity market areas with the state.
Residents and business owners have been able to shop Texas electricity supply rates for more than a decade. When Texans gained the ability to choose their desired energy company in 2002, the electric industry divided into two parts: supply and delivery. Retail energy companies in Texas compete for business, offering a variety of term agreements and supply rates for consumers to choose from.