According to a 2014 report by the Texas Coalition for Affordable Power (TCAP), "deregulation cost Texans about $22 billion from 2002 to 2012. And residents in the deregulated market pay prices that are considerably higher than those who live in parts of the state that are still regulated. For example, TCAP found that the average consumer living in one of the areas that opted out of deregulation, such as Austin and San Antonio, paid $288 less in 2012 than consumers in the deregulated areas."
Prepaid electricity allows you to buy your electricity before consuming it. This is similar to a pre-paid cell phone in that you’ll pay the Retail Electric Provider (REP) upfront. You can then manage how much electricity you use throughout the month. These prepaid energy plans are best for people who can pay their bills on time and can receive notices via text or email. They’re also a good option for anyone who doesn’t have money for a large deposit, people with bad credit, anyone who wants to cut down on their electric use, or who need to split the electric bill with their roommates.
You can switch power supply providers to find more agreeable terms, snag a better rate or get green electricity. If you have a month-to-month plan for your power supply, switch at the end of any billing month. If you are locked into a longer contract and want to exit early, you may want to investigate what fees may be assessed if you switch. Power supply will be the same when you switch power providers, so you don't have to worry about sub-standard electricity supply.
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.