Customer Service

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

Email: ILCustomerCare@greenmountain.com

Call: 800-274-5289
Hours: Mon-Fri 7am-7pm CT

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

Contact Customer Service

Problems with gas or electricity?

For outages or other emergencies, contact your utility directly:
ComEd: 800-494-4000
Nicor: 888-642-6748
People’s Gas: 866-556-6002

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: 855-IL-GOGREEN (855-454-6473)
Hours: Mon-Fri 7am-6pm CT

SIGN UP ONLINE!