Texas deregulation began in early 2002 with the approval of Texas Senate Bill Number 7. Now, the majority of the state, including Houston, has the power to select their own provider. Previously, consumers were only given one option for an energy supplier. Deregulation has allowed competition in the energy market and has given residents the power to choose which energy provider sells them energy and bills them each month.
“The whole business model of the industry is to get people in on the promotional rates and then jack up their rate when the promotional rates end,” said Trent Crow, a former JP Morgan energy trader and founder of Real Simple Energy, a website that helps consumers find low-cost electricity plans. “I don’t think people realize how much they are overpaying.”
1. After your contract ends, the energy company will send you a notification of your rate increasing to a variable rate (which usually translates to 2-3 cents higher/kWh by a certain date). They are supposed to notify you of this change. I've noticed as a customer, we get short-changed of one month from the contract rate (if you signed for 7 cents for 6 months, you'll only get that for 5 months). If you don't call, your rate goes up significantly if you don't call to change to a cheaper contract. Tell them you want the cheapest rate or you will cancel with their company. 

Texas consumers can save hundreds of dollars each year by shopping for electricity, but most don’t seek out better deals, overwhelmed by the number and complexity of power plans on the state’s Power to Choose website, wary of fine print in too-good-to-be true offers, or just too busy to spend time calculating whether free nights and weekends offset the higher rates they pay during the week.
 1.     Contracts:  Before, there were no contracts.  You signed up or you didn’t.  When it’s the only game in town, you have to play by their rules.  Nowadays, you’ll see these ultra-fabulous rates bandied about but it’s only by carefully scrutinizing the fine print that you’ll discover those wonderful rates come with a one-year lock-down or other catches.
We carefully screen Texas electricity providers in your area. Then, we list electricity rates and plans from top providers in a user-friendly format on our website, so you can compare the information. We handle the complex concerns and considerations, so you don’t have to. With our assistance, you no longer need to track down different electricity companies, rates, and plans, because we provide all the information you need to choose the best provider.
As a result, power companies have shut down Texas coal plants unable to compete with lower-cost generators. Meanwhile, the low electricity prices of recent years — a function of cheap natural gas — and small profits have discouraged companies from investing in new power plants. ERCOT, which oversees about 90 percent of the state’s power grid, said power reserves that are called on when demand peaks on the hottest summer days have shrunk to the lowest levels since Texas deregulated power markets in 2002.
My True Cost: This website is owned and operated by CenterPoint Energy. When you input your smart meter number, the website can use your usage data to tell you how much your electric bill will be if you picked various plans on its website. CenterPoint charges the Retail Electric Providers if they want to be listed on this site, so there are far fewer plans here than on Power to Choose. When we compared for an inner loop address, there were 83 plans on My True Cost compared to 179 on Power to Choose. You may be missing less expensive plans if you don't look at the state's website also. More info
Your most effective weapon, however, is a site like ComparePower (Power to Choose) to locate and compare details from various Houston electricity resellers.  In one fell swoop, you will efficiently and quickly locate and classify cheap electricity resellers all on one page, instead of wasting your valuable time searching out available companies and visiting their websites one by one (who even does that any more?).

On the other hand, month-to-month variable rate (no-contract) plans don’t have cancellation fees. You won’t be penalized if you find a better deal elsewhere and want to make another switch.  And, you won’t be stuck paying more than you should be if the market rate for electricity trends down.  But, if it goes up, you’ll be paying more than your in-contract neighbors, and you’ll likely want to shop around again for a better deal.

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