REP (Retail Electric Provider) is the company that sells electricity to consumers in Texas's deregulated market. REPs purchase electricity from the wholesale market managed by ERCOT and sell it to homes and businesses. Texas has over 100 PUCT-licensed REPs including TXU Energy, Reliant, Gexa Energy, Constellation, and Green Mountain Energy. You can compare and switch REPs to find the best electricity rate for your home.
Definition verified January 2026 from PUCT
One of Texas's largest and oldest electricity providers
Fixed and variable rate plans
Major provider with extensive Texas market presence
Fixed rates, rewards programs
Competitive rates with green energy options
Often lowest-price plans
National provider with strong Texas presence
Business and residential plans
100% renewable electricity plans
Solar and wind energy
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REPs handle the commercial side of your electricity service:
Your rate stays the same for the entire contract term (6-36 months). Protects against market price increases but may have early termination fees.
Rate changes monthly based on market conditions. No contract commitment but rates can spike during high-demand periods like summer.
100% renewable energy from wind or solar sources. Available from providers like Green Mountain, Chariot Energy, and others.
Pay for electricity before you use it. No credit check required. Good for renters or those with credit issues.
Switching REPs in Texas is simple and your power is never interrupted during the process:
REP stands for Retail Electric Provider. A REP is the company that sells you electricity in Texas. You receive one bill from your REP that covers both the electricity supply and TDU delivery charges.
Yes, Texas residents in deregulated areas can switch REPs at any time. The switch typically takes 1-2 billing cycles and your power is never interrupted during the switch. Some fixed-rate plans have early termination fees if you switch before your contract ends.
No, rates vary significantly between REPs. That's why comparing rates is important. Prices can differ by 20-30% or more between providers for similar plan types. Always compare the total price at your expected usage level.
If a REP goes out of business, you're automatically moved to a Provider of Last Resort (POLR) by ERCOT. Your power is never interrupted. However, POLR rates are typically higher, so you should shop for a new REP quickly.