Contact Distributed Generation

Connecting with Distributed Generation Resources

If you need to contact us regarding interconnection inquires, questions or concerns, please email or call us at the numbers listed below.

General Customer Service Inquiries 
Mon.-Fri., 7:00 a.m. to 7:00 p.m.

800 7 CALL UI (800.722.5584)
Fax: 203.499.5973

Customer Inquiries - Interconnection

Please refer to the online interconnection portal for updated project milestone statuses. If you have further questions, please send them to

Customer Inquiries - Residential Renewable Energy Solutions


Customer Inquiries - Non-Residential Renewable Energy Solutions



Mailing Address:
United Illuminating Company
Distributed Energy Resources Dept. Mail Stop: OP-3C
180 Marsh Hill Rd
Orange, CT 06477

Contractor Service Request
To establish an electric service for generator connections, contact  UI’s Customer Care  or submit the online work order request form.


Nodo: liferay-2:8080