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 8am-8pm 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 8am-7pm ET

SIGN UP ONLINE!