Connecticut Solar Incentives (Rebates, Tax Credits & More in 2023)

In this Connecticut solar incentives guide, we’ll answer: 

  • What solar incentives can Connecticuters take advantage of in 2022?
  • How much can solar rebates and incentives save me when I go solar in Connecticut?
  • How can I apply for each solar incentive available in Connecticut?
Find local solar quotes
Get Quote
Join the 1,587 homeowners who got free quotes in the past 30 days.
Advertising Disclosure

Each product and or company featured here has been independently selected by the writer. You can learn more about our review methodology here. If you make a purchase using the links included, we may earn commission.

Do Connecticut Solar Incentives Make It Affordable for Homeowners to Go Solar?

The average cost of going solar in Connecticut is $2.80 per watt, $0.14 cheaper than the national average. Considering the average household’s energy consumption in the state, a solar panel system in CT comes out to around $21,000 before any incentives or credits are applied. Making going solar in Connecticut absolutely worth it!

However, all Connecticut residents are eligible for the federal tax credit, worth 30% of the total cost of their solar panel system. This is in addition to other solar incentives available to homeowners in the state like sales and property tax exemptions, solar loan programs and the Residential Renewable Energy Systems Program.

These incentives make going solar more affordable in Connecticut. According to the Solar Energy Industries Association (SEIA), Connecticut is relatively solar-friendly and promotes solar conversion more effectively than most states.1

Badge icon

Green Power Energy

Outstanding Regional Installer

Regional Service

EcoWatch rating

Average cost


  • Educational, no-pressure sales approach
  • Outstanding customer service
  • Multitude of products and services


  • Relatively young company
Badge icon

SunPower by New York State Solar Farm

Outstanding Local Installer

Local Service

EcoWatch rating

Average cost


  • Great warranty coverage
  • Family-owned and -operated
  • Offers products from leading manufacturers
  • 24/7 customer support
  • Limited service area
  • Expensive


  • Slightly limited service offerings
Badge icon

Momentum Solar

Best Regional Coverage

Regional Service

EcoWatch rating

Average cost

Read full review now


  • Great warranty coverage
  • Concierge service ensures steady communication
  • Representatives are experts on local policies


  • Slightly limited service offerings
  • Only available in 11 states

We’ll go into more detail about each of the solar incentives available in Connecticut below.

Solar Incentives in Connecticut Incentive Type Description Occurrence Estimated Dollar Amount You Can Receive
Federal Solar Investment Tax Credit (ITC) Federal All U.S. homeowners are eligible to get 30% of the total cost of their solar panel system back on their federal tax returns. Applies to your federal tax returns, and will roll over for up to 5 years On average, $6,300 in Connecticut
Sales and Use Tax Exemption for Solar and Geothermal Systems State Anyone in Connecticut who is purchasing solar equipment can qualify for a sales tax exemption. At the time of purchase for solar equipment and services On average, $1,334 for a solar panel system in CT
Property Tax Exemption for Renewable Energy Systems State Connecticut’s property tax exemption ensures that your property taxes will not go up after you install solar panels. Automatically applies to your taxes annually after you submit your application Potentially thousands of dollars over the lifespan of your solar panels
Solar Loan Programs State There are several state-funded solar loan programs that make solar more accessible through low-interest rates and no-money-down options. Over the lifespan of your solar loan Depends on the value of the loan and your interest rate
Residential Renewable Energy Solutions (Replaced Connecticut’s net metering program) State The Residential Renewable Energy Solutions Program replaced CT’s net metering program. It utilizes tariffs to compensate homeowners for excess solar energy their system generates. Customers opt-in to one of two tariff structures. Monthly Netting tariff: The retail rate of the excess energy generated by your solar panels, plus $.0318 per kWh generated by your panels for RECs (for Eversource customers)


Buy all tariff: $0.2943 per kWh your solar panels generate 2
Local incentives Local Some local governments offer solar incentives in addition to state incentive programs. Varies Varies

What Do Connecticut Residents Need to Know About the Federal Solar Tax Credit?

what solar incentives are available in connecticut

The most attractive incentive available to Connecticut residents is the federal solar investment tax credit, commonly abbreviated as “ITC. This credit is for 30% of your system cost and gets deducted from your federal income taxes owed — or paid via check if you get money back. In Connecticut, where the average solar system cost is $21,000, that’s a typical rebate of $6,300.

U.S. homeowners are eligible for the 30% tax credit through 2032. The credit will decrease to 26% in 2033 and 22% in 2034 before it’s phased out in 2035.

How to Claim the Federal ITC in Connecticut 

You’ll claim the Solar Tax Credit on your federal tax return. If you’re doing your own taxes, here’s how you claim your credit:

  1. Download and complete the IRS Form 5695. On lines 6a and 6b, you’ll fill out the cost of your solar application and calculate your credit. If you need help completing the necessary forms, your solar installer or a CPA can assist you.
  2. On IRS Form 1040, fill out your Schedule 3 using the figures you calculated on line 15 of the 5695 form.

For a complete guide on how to apply for the federal solar tax credit, go to the website. It’s best to consult with a tax expert and your solar panel installer when applying for the ITC.

EcoWatch’s Opinion on the Federal ITC in Connecticut 

Worth 30% of the total solar system cost, The Federal ITC is the largest solar incentive available to Connecticut residents.

That being said, you will only recognize the full benefit of the solar tax credit if you expect to pay several thousand dollars in federal taxes within the five years following your solar panel installation. After five years, the tax credit will no longer roll over on your federal tax return.

Additionally, if you have a solar lease or power purchase agreement (PPA), you will not qualify for the Federal ITC.

Sales and Use Tax Exemption for Solar and Geothermal Systems in Connecticut

Connecticut’s Sales and Use Tax Exemption for Solar and Geothermal Systems prevents you from having to pay sales tax on renewable energy equipment. Normally, the standard tax rate of 6.35% would apply to solar panels, battery storage options, inverters, mounting equipment, installation services and any other part of your solar power system.3

The sales tax exemption prevents you from having to pay that tax, saving homeowners an average of $1,334 in upfront costs.

How to Claim Sales and Use Tax Exemptions for Solar and Geothermal Systems in Connecticut 

To claim the sales and use tax exemption for renewable energy equipment and services in Connecticut, you must:

  1. Fill out form CERT-140 from the Connecticut Department of Revenue Services.
  2. Present the form to the seller of your solar equipment or services at the time of purchase.

EcoWatch’s Opinion on Sales and Use Tax Exemptions for Solar and Geothermal Systems in Connecticut 

Connecticut’s sales tax exemption on renewable energy systems is an easy way to save money upfront on the cost of going solar.

Solar saves most homeowners money on their energy bills in the long run, and tax credits and other solar financial incentives also offer a monetary return. However, tax exemptions are great because they allow you to save money right away, at the time you purchase your solar equipment.

For an average-sized solar panel system in Connecticut, homeowners would save $1,334 in sales tax with this exemption.
Watch Below: Why Are Solar Batteries Important and Will CT Pay You To Install One?

Property Tax Exemption for Renewable Energy Systems in Connecticut 

Connecticut also offers a property tax exemption for renewable energy systems, including solar panels. Installing solar panels can cause your home’s value to increase, which would typically lead to an increase in your property taxes as well. However, Connecticut’s exemption ensures that your property taxes won’t go up after you install solar panels.

The state of Connecticut requires that all “passive or active solar heating systems or geothermal energy resources” be exempt from property taxes. However, whether or not “active solar cooling systems” are exempt from property taxes is up to the discretion of each locality.4

Overall, solar homeowners could save thousands of dollars in property taxes over the lifespan of their solar panels with the property tax exemption.

How to Claim Property Tax Exemptions for Renewable Energy Systems in Connecticut 

Although the state of Connecticut mandates property tax exemptions for renewable energy systems statewide, you will file your claim locally. Therefore, the application process will look slightly different depending on what town you live in.

You must file your exemption claim with your tax assessor or board of assessors in the town where your renewable energy system is located. You must file your claim before November 1 of the assessment year for the exemption to be applied to your taxes in time.

You do not have to reapply each year for this program. You would only reapply if you make major alterations to your solar (or other renewable energy) system.

To get started, contact your local tax assessor. You can find the tax assessor officers in your town here.

EcoWatch’s Opinion on Property Tax Exemptions for Renewable Energy Systems in Connecticut 

A property tax exemption on your solar panels can save you thousands of dollars in taxes over the lifespan of your system. Most residential photovoltaic systems are eligible for this exemption.

However, some exemptions are left up to the discretion of each locality in Connecticut, and exemption claims are handled locally.5 Therefore, you’ll want to make sure to discuss your individual situation with a local tax assessor to make sure your claim is filed correctly.

Solar Loan Programs in Connecticut 

One of the most effective ways Connecticut makes this renewable energy source so accessible is through state-funded solar loan programs. These often supply homeowners with no-money-down options and low interest rates to minimize the long-term energy costs of solar PV systems.

Here are some of the top solar loan programs available in Connecticut:

  • Smart-E Loans: The Connecticut Green Bank, Energize CT and local lenders have partnered to create Smart-E Loans, which provide a slew of benefits to those financing their solar energy systems. They have a low APR, require little money down and have no penalty for prepayment.6
  • Home Energy Solutions Loan Program: This program is geared toward low- and middle-income residents.7 While the loans from this program aren’t specifically for solar equipment, they can be used for energy-efficiency upgrades including new insulation and windows. This ultimately makes your solar system more valuable because your home will be using less energy. That way, you can install a smaller solar system or earn more from the excess energy your panels generate.
  • Energy Conservation Loan: Also provided by Energize CT, this loan program provides solar financing solutions for energy-efficiency upgrades and new construction that follows program guidelines in terms of home efficiency. You can use these loans for hot water heaters, gas water heating, HVAC equipment, new insulation and some renewable energy technology.8
  • PACE Financing: Finally, Connecticut homeowners and business owners have access to PACE financing. PACE loans stay with the property, not the property owner, and they’re secured by your local municipality or government bonds, so they’re generally available even to solar customers who don’t have good credit. These loans are affordable and have a low interest rate to make solar financing as accessible as possible.9

How to Claim Solar Loans in Connecticut 

The application process for solar loans in Connecticut will vary depending on which loan program you hope to qualify for. For more information and instructions on how to apply to each of the loan programs listed above, visit the program’s respective website:

EcoWatch’s Opinion on Solar Loans in Connecticut 

Low-interest solar loans can make solar accessible to homeowners that otherwise would not be able to afford to install solar. Before committing to a loan, we strongly recommend comparing the qualities of different loan options, including the interest rate, down payment and the loan term (how long you’ll be paying the loan for).

Net Metering in Connecticut 

As of January 1, 2022, Connecticut’s Public Utilities Regulatory Authority (PURA) replaced the state’s net metering policy and residential solar incentive program with the Residential Renewable Energy Solutions Program.10

This program allows homeowners to earn money from the excess electricity their solar panels generate under one of two incentive tariff structures:

  • Buy-all tariff: UI or Eversource Energy will purchase the electricity and Renewable Energy Certificates (RECs) that your solar panel system generates.
  • Netting tariff: UI or Eversource Energy will purchase RECs generated by your solar panel system and will provide monetary credits on your electric bill for excess energy that is sent to the grid from your panels.11 These credits are worth the retail rate of each kilowatt-hour (kWh) of energy sent back to the electric grid.

Those living in low-income households will receive an additional $0.025 per kWh their solar panels generate. Those living in “distressed municipalities” will receive an additional $0.0125 per kWh.12

Homeowners who installed solar before December 31, 2021, will still be eligible for net metering until 2039.13

Eversource Energy and United Illuminating (UI), the main energy providers in the state, administrate the Residential Renewable Energy Solutions Program.

How to Enroll in Net Metering in Connecticut 

The Connecticut Net Metering Program no longer accepts new applications. Instead, you should apply to the Residential Renewable Energy Solutions Program. This program offers similar benefits through a tariff system.

Your solar installer should apply for this program for you through an interconnection application with your electricity provider.

To get started with the interconnection process with Eversource, click here. To get started with UI, click here.

EcoWatch’s Opinion on Net Metering in Connecticut 

Although Connecticut’s statewide net metering program was phased out in favor of the Residential Renewable Energy Solutions Program, the new program is similar to net metering in many ways, and offers a similar level of incentives.

How much you earn from the Residential Renewable Energy Solutions Program can vary depending on your energy provider, household income level, and the type of tariff structure you choose.

Therefore, you should speak with your solar provider about your individual needs when applying for the Residential Renewable Energy Solutions Program.

Local Solar Incentives in Connecticut 

Check with your town’s local government to see if there are any additional solar incentives available where you live.

There are also additional incentives available for low- and middle-income households in CT. For instance, Connecticut’s Solar for All program helps underserved communities go solar and be more energy efficient. As a result, 4,400 families in the state have saved an average of $700 in the first year.14 Learn more about this

What Do Connecticut Residents Need to Know About SRECs?

Under Connecticut’s Renewable Portfolio Standard (RPS), electricity providers must offset some of the energy they generate with clean energy systems. One way that they do this is by selling renewable energy credits (RECs) that home solar panels generate.

Oddly enough, Connecticut does not actually have a REC market. Instead, you’ll earn money for the RECs that your panels generate through your utility provider. You will earn money for your RECs through the netting tariff under the Residential Renewable Energy Solutions Program. The REC rate for Eversource customers is $0.0318 per kWh generated by their solar panels.15

Are SRECs Taxable in Connecticut?

Yes, SRECs are taxable on both a federal and state level. Speak with a CPA or tax expert to decide how to go about paying taxes on SRECs in Connecticut.

Generally, if you make more than $600 of income in a year from RECs, you’ll include this on Form 1099-MISC of your tax return. Otherwise, if you do not have a 1099-MISC form, include your SREC earnings in Miscellaneous, 1099-A, 1099-C under the Wages & Income section of your federal taxes.

For more detailed instructions from TurboTax, click here.

What’s the Near-Term Outlook for More Incentives in Connecticut?

Unfortunately, there are currently no new solar incentives set to be put in place in the near future. However, Connecticut residents will continue to be eligible for the federal solar tax credit, sales and property tax exemptions, solar loan programs and the Residential Renewable Energy Solutions Program for the foreseeable future.

There were also many changes to solar incentive policies in Connecticut in 2022 that encouraged the growth of the solar industry. For instance, the state’s net metering program was replaced with the Residential Renewable Energy Solutions Program which offers more flexible options for homeowners to earn money from the energy their solar panels generate.

Additionally, Connecticut’s PURA introduced an Energy Storage Solutions program in 2022 designed to incentivize energy storage installations, including solar batteries. This will make installing a solar battery with your rooftop system far cheaper.16

In August 2022, the Biden Administration passed the Inflation Reduction Act,  which extended federal solar incentives. The credit is now worth 30% through the end of 2032.

Read More About Going Solar in Connecticut 

FAQ: Connecticut Solar Incentives

At EcoWatch, we frequently get questions from Connecticut homeowners about the solar incentives available in the state and how they can save money on solar conversions. Below are some of the questions we see most often. If you have specific questions that aren’t answered here, reach out to our team of solar experts at

Blog author image
Article author
Faith is a writer based in North Carolina. She holds English and economics degrees from UNC Chapel Hill, and her background includes event management and technical publishing. Faith is passionate about the arts and loves exploring environmental issues through economic and artistic lenses. She also enjoys spending time in nature, collecting books and practicing her Spanish.
Reviewer image
Expert reviewer
Tori is an editor, writer, rock climber and travel enthusiast. A native New Yorker, she graduated from the College of Saint Rose with a degree in communications and journalism. Before joining EcoWatch, Tori helped to oversee communication strategies for the City of Philadelphia. Her experience also includes communications work in the nonprofit and academic sectors. A journalist by trade, she started her career covering political, environmental and social issues in New York's Hudson Valley. In her spare time, Tori can be found in the mountains climbing boulders, traveling to new cities or at one of Philadelphia's many music venues.

Comparing authorized solar partners

EcoWatch rating
Average cost
BBB Rating
Year founded
Service Area
Brands of Solar Equipment Offered
Warranty Coverage
  • 4.5
    • Educational, no-pressure sales approach
    • Outstanding customer service
    • Multitude of products and services
    • Relatively young company
    Outstanding Regional Installer

Having trouble deciding? Click below and use our process to receive multiple quotes instead:

Get My Solar Quote