The Texas Customer Service agents for Green Mountain Energy are committed to getting the answers you need as quickly as possible.
Please remember that My Account is always available online. Our Green Mountain App is another convenient tool for managing your account needs. Payment assistance options can be found here.
New Residential Customers
If you’re ready to help us inspire hope and motivate action through the use of clean energy, and you’ve never had an account with us before, join our community now!
Sign up for new service online!
Call: 1-866-301-3120
Hours: 24/7
Existing Customers
Thanks for being part of the Green Mountan Energy Community! You can contact us 24/7 by:
Phone
Call: 1-866-785-4668
Hours: 24/7
If your schedule is flexible, call during these typically low call volume times to minimize your wait: Wed 11:30 a.m. – 6 p.m. | Thu and Fri 11:30 a.m. – 8 p.m.
Online Chat
Get help online from a live agent.
Hours: 24/7