NRG Contact Information

  • We will be making site improvements from 10:00 P.M. to 04:00 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 for Large Business

Contact us about your large business power concerns.


General questions? Call us at 1-888-315-1558 (Monday - Friday, 7:30 a.m. - 5:30 p.m. CST) or email us at, and we'd be happy to assist you.

Send correspondence to:

P.O. Box 1532
Houston, TX 77251-1532

Send payments to (U.S. Mail):

Reliant - Dept. 0954 
P.O. Box 120954
Dallas, TX 75312-0954

For overnight delivery:

Reliant - Dept. 0954
1501 N Plano Rd.
Richardson, TX 75081

Account setup

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