†Offer is available to Texas residential customers who enroll using the Promotion Code “NIGHTSFREE”. Plan bills a monthly Base Charge, an Energy Charge, and passes through Utility Transmission and Distribution delivery charges. Energy Charges for usage consumed between 9pm and 7am each day is credited back on your bill. The utility charges, including delivery charges for night time hours, are passed through at cost and aggregated on your bill. See Electricity Facts Label for details.
Power to Choose is a program run by the Public Utility Commission of Texas. Its goal is to protect residents of the state from unfair energy costs and unregulated REPs, as well as develop a strong infrastructure. The program provides an easy to use, online tool that give residents of the state the opportunity to compare rates, plans and other energy options.  Keep in mind though, you really need to read the fine print if you decide to use Power to Choose (or any other service, for that matter).
According to the U.S. Energy Information Administration, the average household in Texas uses about 15,000 kWh of electricity per year — 26 percent more than the national average, “but similar to the amount used in neighboring states.” That said, the only way to know your personal average energy consumption is by looking at your electricity bills over the course of a year (you want to accommodate all weather conditions) and understanding both your overall usage, as well as if you use more or less during certain months.
Database of State Initiatives for Renewables & Efficiency (DSIRE) is a company and website that compiles a list of all the energy incentives available in the United States, by a particular state. The idea is to help inform the public about the latest and greatest energy programs and initiatives – all from one location. DSIRE receives funding from the United States Department of Energy and is run by the N.C. Clean Energy Technology Center and N.C State University. Browsing the site programs gives you access to viewing all Texas related initiatives.
Variable-rate supply plans, as the name suggests, have a rate that varies based on the market price of electricity. Seasonal and market fluctuations can affect supply rates. While variable-rate supply plans can allow you to take advantage of market-price lows, there is the possibility of paying for high supply rates when demand is at its peak. These plans offer great flexibility.

Since Texas' electricity market was deregulated in the late nineties, multiple Retail Electric Providers (REP) have either launched in Texas, or providers in other states have begun to extend their reach to Texas residents (e.g., Spark Energy, 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.

Due to the increased usage of natural gas immediately after deregulation, new-era energy tools such as wind power and smart-grid technology were greatly aided. Texas' first "renewable portfolio standard" — or requirement that the state's utilities get a certain amount of their power from renewable energy like wind — was signed into law in 1999, as part of the same legislation that deregulated the electric market.
The PUC’s mission is to protect customers, foster competition, and promote high-quality infrastructure. In addition to regulating the states electric utilities and implementing legislation, the PUC offers Texas residents assistance in resolving consumer complaints.  If you have a complaint with your electricity company you can go to the official PUC website and file an informal complaint.