Maryland
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!
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
