In environmental impact, results are mixed. With the ability to invest profits to satisfy further energy demand, producers like TXU are proposing eleven new coal-fired powerplants. Coal powerplants are cheaper than natural gas-fired powerplants, but produce more pollution. When the private equity firms Kohlberg Kravis Roberts and the Texas Pacific Group announced the take-over of TXU, the company which was known for charging the highest rates in the state and were losing customers, they called off plans for eight of the coal plants. TXU had invested more heavily in the other three. A few weeks later the buyers announced plans for two cleaner IGCC coal plants.
There are two main types of pricing in contracts: fixed and variable. With a fixed contract, the electric rate price you sign up for cannot change for the duration of your contract. With a variable contract, the rate price is subject to increase or decrease each day or month, based on the time of year and price of electricity for the provider at that moment. Variable pricing is often higher, but may be a good choice for those that don’t want to be locked into a contract.
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 2002-2014 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. 
No worries. It’s always a good idea to shop for a new electricity plan when you are moving to see if there is a better deal on electricity available. But, if you are happy with your current electric rate, most electricity providers will gladly keep you as a customer and continue service under your current contract at your new apartment or house as long as you move within the same utility delivery area. Don’t worry about early termination fees. If you are moving, your electricity provider cannot charge you an early termination fee if you provide a valid proof of a change of address thanks to customer protection rules established by the Public Utility Commission of Texas.
Maybe you're still stuck between 2 companies and you're looking for those tiny additional touches that make all the difference in the world. Only a small handful of Texas electricity companies offer a rewards program for their customers. Some of these rewards programs only offer one or two options, while there may be another company that offers you multiple options when it comes to your rewards.