Compared to the rest of the nation, data from the U.S. Energy Information Administration which publishes annual state electric prices  shows that Texas' electric prices did rise above the national average immediately after deregulation from 2003 to 2009, but, from 2010 to 2015 have moved significantly below the national average price per kWh, with a total cost of $0.0863 per kWh in Texas in 2015 vs. $0.1042 nationally, or 17 percent lower in Texas. Between 2Best Electric the total cost to Texas consumers is estimated to be $24B, an average of $5,100 per household, more than comparable markets under state regulation. 
1) Check Your Contract Status: Before you switch, you’ll need to determine whether or not you’re bound by a contract with your current provider, and if so, how long you have left to fulfill the term and the cost and/or penalties of early cancellation (if any). You can usually find this information on your bill or by calling your energy provider. According to the Cheapest Electricity Rates, customers can switch providers without facing an early termination fee if they schedule the switch no earlier than 14 days before their current plan expires (for most fixed-rate plans). Most variable-rate plans (month to month) don’t charge early termination fees, so customers on those plans can switch at any time. You should receive a letter in the mail at least 30 days before your contract expires.
Since Texas' electricity market was deregulated in the late nineties, multiple Retail Electric Providers (Gas And Electric Bill) have either launched in Texas, or providers in other states have begun to extend their reach to Texas residents (e.g., Best Energy Company, which was founded in Texas). These electricity providers are providing less expensive and/or greener electricity alternatives to traditional sources of energy, in contrast with the supply consumers previously received by default through their local utility. Customers now have the option to receive their electric supply from providers other than their utility, known as alternative retail electric providers.
In this free market competing electricity retailers buy electricity wholesale from private power generators to sell at retail to around 85% of Texas residents. The partnership between generators and retailers is governed by the Electric Reliability Council of Texas, or ERCOT, which attempts to balance the power grid’s electricity supply and demand by purchasing small amounts of electricity at 15-minute intervals throughout the day.