Welcome to the Interconnection Analysis Portal

Using Gridtwin software, this portal provides interconnection analysis tools to large-scale solar developers in Massachusetts. You can take advantage of mapping tools, search for optimal land parcels, determine interconnection costs, and much more.
Looking for the Eversource Website? Go here.

How does it work?

Sign up for a free account to start using the software in Eversource territory today.

Step 1


Sign up for a free account within Eversource MA territory.

Step 2

Invite your team

Share projects with your team members and stay organized.

Step 3

Search and Save

Locate a potential solar project and save it to your account.

Step 4

Simulate Interconnection

Use Gridtwin software to estimate interconnection cost.

Why use the Eversource Interconnection Portal?

Gridtwin software aggregates all the data you need as a solar developer. We provide accurate and cost-effive screening for interconnection.

Explore, Share, Develop

Best-in-class mapping tools specifically designed for solar developers. Gridtwin simplifies the interconnection process, providing better information for you as the solar developer while promoting solar development in Massachusetts.

About the Eversource Interconnection Portal.

Eversource has partnered with Gridtwin to provide Interconnection Analysis tools to solar developers in Massachusetts.

These tools are provided free of charge for use in Eversource Massachusetts territory.

For more information, email info@gridtwin.energy.