Approximately 85% of Texas power consumers (those served by a company not owned by a municipality or a utility cooperative) can choose their electricity service from several retail electric providers (REPs), including Reliant. Reliant services the Centerpoint, Oncor, Texas-New Mexico Power, and AEP Texas service areas. Visit ComparePower to enroll for electricity service with Reliant online, or call 1-844-637-5408 and enroll by phone.