How does that work? Spark Energy buys electricity and competes in the market for the best price -- a competition that ultimately drives prices down and allows us to deliver more value for your money. In Texas, switching to a different electricity provider is kind of like changing to a different long distance company. When you switch to Spark Energy, the utility will continue to deliver electricity to your home but Spark Energy will handle all the billing, including the utility’s delivery fees and the electricity you actually use.
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.
That means that customers in Houston paid an average of $5,500 more for electricity over a 14-year time span beginning in 2002, according to the group that buys electricity on behalf of municipal governments in Texas. The calculation, which uses data from the U.S. Energy Information Administration, assumes monthly electricity use of 1,300 kilowatt hours.

Utility companies are responsible for transmission and delivery of electricity even in energy deregulated parts of Texas and should be contacted in the event of a power outage. Your retail energy supplier may provide you competitive electric rates or exceptional customer service, but they cannot repair power lines or restore your service. In the case of an emergency, contact:
Texas Power Agents: For $99 a year, Texas Power Agents will evaluate your current contract terms, access your historical usage, and determine the best plan for you going forward. If you are currently in a contract with an early termination fee, they can calculate if it is best for you to cancel now or stay until the contract is finished before securing a better deal. More info
REPs sell electricity rates to Houston energy consumers, but transmission and distribution service providers (TDSPs) deliver the supply of electricity. In Houston, CenterPoint Energy serves as the area's TDSP and works with about 85 REPs. If your power goes out, immediately report the issue to CenterPoint Energy, not your REP. Use the following phone numbers to get in touch with your Houston TDSP.
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