Current Residential Customers

We’re here if you have any questions about your existing account:

Email: MDCustomercare@greenmountain.com

Call: 877-473-3646
Hours: Mon Fri 8 a.m. 8 p.m. ET

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

Contact Customer Service

Problems with gas or electricity?

For power outages or other emergencies, contact your utility company:

BGE:  877-778-2222
Delmarva:  800-898-8042
MD GME Gas: 1-800-685-0123
Pepco:  877-737-2662
Potomac Edison: 800-686-0011

New Residential Customers

If you’re ready to help us change the way power is made, and you’ve never had an account with us before – join our community now!

Call: 1-855-MD-GOGREEN (1-855-634-6473)
Hours: Mon Fri 8 a.m. 7 p.m. ET

SIGN UP ONLINE!