CT Smart-E Loan for Solar and Efficiency

CT Green Bank

Available Solar & Renewable

About This Program

Low-interest financing for residential solar installations and comprehensive energy efficiency improvements in Stonington. Rates as low as 4.49% APR with terms up to 15 years. No origination fees or prepayment penalties.

Loan amount based on project cost and credit qualification

Data last verified 2026-06-09. How we verify our data.

Key Details

  • Low-interest loans up to $50,000
  • Rates as low as 4.49% APR
  • For solar, heat pumps, insulation, more
  • 15-year repayment terms available
  • No origination fees or prepayment penalties

How to Apply

Get free help applying Visit Official Program Page Track this program

(860) 257-2332

A grant-savvy contractor in Stonington, CT can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.

You will likely need a contractor to apply

Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Stonington early keeps your application moving.

Get matched with a contractor

Each program sets its own contractor rules. Check the official program page for exact requirements.

Your application paperwork

Documents you will likely need

  • Proof you own and live in the home (deed, recent mortgage statement, or property tax bill).
  • A government-issued photo ID for every owner on title.
  • A written estimate from a licensed contractor for the work (many programs require this to apply).
  • A recent utility bill for the home (energy and weatherization programs use it to confirm service and usage).
  • Photos of the problem area or the work to be done.
  • The program's own application form, completed (use the official link or phone number on this page).
Download this checklist (PDF)

Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.

Deadline: Ongoing

Questions about this program?

Ask us. It is free, and a real person answers within a business day.

Email us about this program

Need a Contractor for This Grant?

Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.

Get matched with a pro, free Browse Stonington, CT contractors

Find More Programs in Stonington, CT

This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.

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