Start by finding your desired address on your state's Interconnection Hosting Capacity Map.
Then, use the Interconnection Application Form below to 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,
Notice of Process Change:
Due to a technical issue, the launch of our new online portal, which will feature enhanced communication capabilities, improved user experience, and more streamlined processes has been postponed. Learn more about the new portal here.
During this transition, we appreciate your patience. All information and data will continue to be securely stored. If you have any questions, feel free to contact us by emailing generator@unitil.com.
Interconnection Hosting Capacity Map
Interconnection Application Form
As you complete the application, we have included simplified instructions to guide you along the way.
Document Uploads
Due to a temporary process change, please send all supporting documents to generator@unitil.com.
Once the generator is installed, photos and a Certificate of Completion must be signed by the local municipal inspector and submitted to the Unitil.
For MA applicants only: Access the tariff here (PDF) that outlines the application process in detail with complete instructions.
