Residential Solar Investment Program

Harness the Power of the Sun

Generate clean, renewable energy from the sun shining on your home. It’s easier than ever to install a solar photovoltaic (PV) system and reduce electricity costs. This program can help you purchase a solar system or lease one with little to no upfront cost.

Find an Eligible Contractor and get started today!

Make a smart investment in your home, and in a clean energy future

Sunlight into Savings Solar PVInstall a solar photovoltaic (PV) system and reduce your electricity costs with a proven, reliable, pollution-free technology. It’s now an affordable smart energy choice for Connecticut homeowners. The Clean Energy Finance and Investment Authority (CEFIA) provides incentives to offset the cost of your investment.

Buying a solar PV system is an investment in the future.  Although buying a PV system may require an upfront payment, it can deliver significant energy cost savings for years to come. A lease option, which requires little or no money down, can be an attractive alternative that could provide immediate savings on your electric bill.

A number of factors determine what a system will cost and how much you can save over time, including the future price of electricity and how long your system operates. Connecticut residents pay an average of 18 cents per kilowatt hour for electricity from utilities. By combining Connecticut incentives, utility net metering credits for the power you generate, federal tax incentives and low-interest financing, you could realize long-term cost savings over the life of your PV system. The more electricity prices climb, the faster you’ll see savings. Consult a tax advisor regarding potential tax savings.

Steps to Take Smart Energy Action

Step 1 -

Before installing your solar PV system, it's important to make your home as energy efficient as possible. Schedule an energy efficiency assessment for your home through the Home Energy Solutions program. Alternatively, you can work with an independent contractor certified by the Building Performance Institute, Inc., a certified energy manager, a certified energy auditor or a professional engineer. Your assessment will identify cost-effective ways to save energy.

Step 2 -

Find an Eligible Contractor. The contractor will review your project with you, provide information about solar systems and assist you with your incentives application. CEFIA will pay the incentive directly to the Eligible Contractor, who passes the savings on to you by reducing the total system cost. As with any significant purchase, shop around when considering purchasing a solar system. Gather as much information as possible, check contractor references and obtain multiple quotes.

Need financing? Energize CT offers several options. Click here to learn more.

Step 3 -

Install your system! CEFIA will pay the incentive directly to the installer Eligible Contractor, who passes the savings on to you by reducing the total system cost.

Please email us at to learn more.

Residential Solar Incentives

CEFIA offers two incentive models to help you go solar:

1. Purchase a solar system for your home

The Homeowner Performance-Based Incentive (HOPBI) incentive provides you with an upfront cost reduction based on major design characteristics of your system, such as panel type, installation tilt, shading, orientation and solar insolation (a measure of solar radiation energy on a given area). The incentive is paid directly to your Eligible Contractor upon the system reaching a performance target.

Incentives are tiered, with a higher rate for the first 5 kilowatts (kW) and a lower rate for the second 5 kW. CEFIA does not provide incentives for any portion of a system that exceeds 10 kW.

Your incentive is calculated with the following maximum rates per watt:

Systems with a calculated “design factor” greater than or equal to 87% will receive the full incentive amount. Systems with a calculated “design factor” less than 87% will receive an incentive discounted according to calculated design factor. Please contact an Eligible Contractor for more information regarding design factor calculations.

Qualify for a five percent bonus if your system includes major components principally manufactured in Connecticut, with an additional bonus if they are principally manufactured in a Connecticut distressed municipality.

2. Lease a system with little or no upfront costs

The Performance-Based Incentive (PBI) is designed to allow homeowners to benefit from solar PV systems for little to no upfront cost. Under this model, an Eligible Third-Party PV System Owner owns the system and enters into a contract with the homeowner. The PBI is paid to the System Owner based on actual performance over the course of 6 years, and is used to reduce the homeowner’s monthly cost. The PBI model also provides an additional bonus for projects that use major system components principally manufactured in Connecticut. CEFIA does not provide incentives for any portion of a system that exceeds 10 kW.

Your incentive is calculated with the following maximum rates based on performance:

Your Connecticut Neighbors Are Going Solar

Take a look at an Excel spreadsheet of residential solar installations in Connecticut for information on system costs, sizes, contractors installing systems and other details. (Requires Microsoft Excel to view, sort and print the information. If you do not have Microsoft Excel installed, click here to install the free MS Excel Viewer.)

Read the Residential Solar Investment Program Weekly Market Watch Report - Data updated as of August 22, 2014.


Residential Solar Investment Program Incentive History

Click here for a history of the Program Steps with EPBB/HOPBI and PBI levels for each





Who Is Eligible?

If your home is a 1-4 family owner-occupied residential property in the CL&P or UI service territories, and offers a good location for a solar system, you can qualify for residential solar incentives. Mobile homes are not eligible.

What Makes a Good Location for a Solar System?

  • A roof facing south, southeast or southwest – Although a roof is the best location, a system can also be installed on the ground if a roof cannot be used.
  • A 35 to 50 degree roof tilt –This allows for optimal year-round energy production. A solar system can also be placed on a flat roof using a racking system.
  • Clear access to the sun for most of the day – The location should be unobstructed by trees, roof-gables, chimneys, buildings and other features of your home or surrounding landscape.
  • Adequate space on your roof or property.
  • A roof in good condition –If your roof needs to be replaced in the very near future, you may want to replace it before the solar system is installed to avoid the cost of removing and reinstalling your system.
  • Manufactured homes where the customer owns the land (deed in place).

If you are a Connecticut resident and are not served by one of the utilities listed above, please visit your utility’s website to see what programs are available to you. Please click here for information on how to contact your municipal utility.

Financing Options

  CT SOLAR LEASECT Solar Lease Whitfield
   No money down options! Carline Laird and Stuart Whitfield are on track to reduce their electricity costs by $942 this year! 
  • Flexible lease terms

  • Comprehensive insurance and warranty program

    Learn More
Through the CT Solar Lease, Carline and Stuart were able to afford a solar panel installation, helping them save money all year long.


  CT SOLAR LOANCT Solar Loan Stouts
   $600 interest payment rebate The Stoutsare expecting to reduce their electricity bills by $1958 this year! 
  • Lowest monthly loan payment

  • Lowest long-term interest rate

  • Extended production and service warranty

    Learn More
The Stouts installed solar panels with financing from the CT Solar Loan. They’re saving over $1,000 a year, money they can put towards their kids’ college funds.


  SMART-E LOANSmart-E Loans Curran
   No interest for 6 months! The Currans will reduce their electricity bill by $1353 this year! 
  • No money down

  • 5 to 12-year terms available

  • Use a local lender

    Learn More
With the Smart-E Loan, the Currans could afford to have solar panels installed on their home, helping them save for their family’s future.


Certain installers offer independent options to purchase or lease a solar PV system.
Ask your installer to learn more.