Illinois
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 7 a.m. – 7 p.m. CT
Moving? Call us to transfer electricity service to your new address!
Problems with gas or electricity?
For outages or other emergencies, contact your utility directly:
ComEd: 800-334-7661
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 7 a.m. – 6 p.m. CT
