Massachusetts

Customer Service

We’re here if you have any questions about your existing Massachusetts electricity account with Green Mountain Energy.

E-mail: MACustomerCare@greenmountain.com
Call: 1-844-245-9583
Hours: Mon – Fri 8 a.m. – 8 p.m. ET

Moving? Call us to transfer your electricity service to your new address!

Lights Out? Billing Questions?

To report an outage or to talk to someone about your billing, please call your local utility company directly.

New Residential Customers

If you’re ready to help Green Mountain Energy 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!

Call: 1-844-853-7531
Hours: Mon – Fri 8 a.m. – 8 p.m. ET

Our customers have avoided

 

pounds of CO2

That’s like planting

 

new trees.

FOLLOW US ON THE WEB
Terms of Use Privacy Rights & Requests Español Report an Error

© 2025 Green Mountain Energy Company. All rights reserved. PUCT Certificate No. 10009.