Begin the process of generating your own power.
Using the form below, you can create a new account or sign in to an existing account. You may submit multiple applications under one account and you will be able to save and edit your progress of each application up until it's successfully submitted.
As you start answering questions, our intuitive form will determine which application you will need to complete. When your application has been submitted, a Unitil representative will review and follow up as needed.
Attention MA applicants
Due to high interest in solar interconnection and renewable energy, the capacity to interconnect generation on some circuits is limited. Please reference our Interconnection Hosting Capacity Map for capacity levels for the location of your interest.
Interconnection Application Form
Please upload all supporting documents using our customer generation Documentation Upload Portal.
For MA applicants only: Access the tariff here (PDF) that outlines the application process in detail with complete instructions.