Customer Service

For assistance with your existing account call:

Tel: 866-785-4668
Hours: Mon-Fri - 8am-8pm

We also encourage our non-emergency customers to call during these typically low call volume times:
Wed - 11:30am - 6pm | Thu & Fri - 11:30am - 8pm

Contact Customer Service Online!

Moving and Disconnects

If you’re an existing customer and need to disconnect, transfer or add a new service to your account call:

Tel: 877-463-2897
Hours: Mon-Fri - 8am-7pm

Transfer your existing Green Mountain Energy^® Electricity Service Online!

Disconnect Your Service

Power Outages

If you experience a power outage, please contact your local electric delivery company for assistance:

Oncor: 888-313-4747
Centerpoint: 800-332-7143
AEP–Texas Central Company: 866-223-8508
AEP–Texas North Company: 866-223-8508
Texas New Mexico Power: 888-866-7456

New Residential Customers

If you have never had an account with us and would like to learn more call:

Tel: 866-301-3120
Hours: Mon-Fri - 8am-7pm | Sat - 10am-5pm | Sun - 12pm-5pm

Sign Up for new Service!