NRG Contact Information

  • We will be making site improvements from Saturday 10:00 P.M. to Sunday 06:00 A.M. CST During this time, you may not be able to access your online account, pay your bill or enroll/start service online. Please call 1-866-222-7100 for assistance.

Contact Information

Get in touch with us at the phone numbers and addresses below.


General questions? 

Call us at 713-207-5555 (Houston) or 1-866-660-4900 (national), or email us. We'll be happy to assist you with all your business needs.

Send correspondence to:

P.O. Box 3765
Houston, TX  77253-3765

Send payments to (U.S. Mail):

P.O. Box 650475
Dallas, TX  75265

For overnight mail:

Reliant Energy Retail Services, Dept. 650475
1501 North Plano Rd.
Richardson, TX  75081