2024 Solar Incentives Guide for Derby, CT - Tax Credits & Rebates

In this guide, we'll cover the latest solar incentives and rebates available in Derby.

You'll learn about:

  • Local & State Solar Incentives
  • Federal Tax Credits (Updated for 2024 and beyond)
  • Ways to optimize your solar investment

Solar installers are experts in maximizing your solar tax credits and rebates.
Get a free quote from one of our trusted Derby solar installers to see how much you can save.

By EcoWatch Local Advisors

Data Analysis: James Savino

Ranking Methodology: Karsten Neumeister

Updated June 24, 2024

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We work with a panel of solar experts to create unbiased reviews that empower you to make the right choice for your home. No other site has covered renewables as long as us, which means we have more data and insider information than other sites. Our rankings are never affected by revenue or partnerships.

What Solar Tax Credits, Incentives, and Rebates are Available in Derby?

Local Option - Property Tax Exemption for Renewable Energy Systems

Incentive Type:
Property Tax Incentive
Varies (local option)

Property Tax Exemption for Renewable Energy Systems

Incentive Type:
Property Tax Incentive
100% of value added by renewable system

Sales and Use Tax Exemption for Solar and Geothermal Systems

Incentive Type:
Sales Tax Incentive
100% exemption

Residential Solar Investment Program

Incentive Type:
Rebate Program
Customer-owned (EPBB):
Up to 10 kW PTC: $0.358/W
10 to 20 kW PTC: $0.207/W
Incentive is reduced accordingly for Design Factors below 75%. Minimum design factor is 60%.

Third-Party-Owned (PBI):
Up to 20 kW PTC: $0.03/kWh for 6 years
Minimum Design Factor 60%

Connecticut Green Energy Building Solutions

Incentive Type:
Green Building Incentive

Smart-E loans

Incentive Type:
Loan Program

Sales and Use Tax Exemption for Energy-Efficient Products

Incentive Type:
Sales Tax Incentive
100% exemption

Energy Conservation Loan

Incentive Type:
Loan Program
Single family homes (1-4 family units): $25,000
Landlord Loan: $40,000

The United Illuminating Company - Small ZREC Tariff

Incentive Type:
Solar Renewable Energy Credit Program
$98.18 per ZREC (for Year 6 round of solicitation)

Eversource - Small ZREC Tariff

Incentive Type:
Solar Renewable Energy Credit Program
$100.74 per REC (for Year 7 round of solicitation)Tariff for Small ZREC determined through PURA

Energy Efficiency Fund (Electric and Gas) - Residential Energy Efficiency Financing

Incentive Type:
Loan Program
$25,000

(Electric and Gas) Residential Rebate Program

Incentive Type:
Rebate Program
Ductless Heat Pump: $500
Refrigerators/Freezers, Room A/Cs, Dishwashers, Clothes Washers, Dehumidifiers: Incentive Included in Retail Price
Central A/C: $200
Air Source Heat Pumps: $500
Heat Pump Water Heater: $750
Lighting: Incentive Included in Retail Price
Geothermal Heat Pumps: $500-$1,500
High Efficiency Furnace, Natural Gas Boiler, and Boiler Circulator Pump: Instant Discounts of $25-$800

Local Option - Residential Sustainable Energy Program

Incentive Type:
PACE Financing
Locally determined

Federal Residential Renewable Energy Tax Credit

Incentive Type:
Personal Tax Credit
30% federal tax credit for systems placed in service after 12/31/2021 and before 01/01/2033. Good for: solar water heat, solar photovoltaics, biomass, geothermal heat pumps, wind (small), fuel cells using renewable fuels.

Source: https://www.dsireusa.org/


The term "solar incentives" broadly refers to financial incentives that are in place to encourage the use of renewable energy by making installing and using solar panels more affordable. Various types of incentives, like discounts, cash back or credit towards your monthly utility bill, might be available to you. Some incentives may be offered by the Connecticut government, by your utility company or by county or municipality, while others are federal. Types of solar incentives might include:

  • Net Metering: You may be able to sign a net metering contract with your Derby utility company, that may apply to all or a percentage of the excess electricity that is generated by your solar panels. Your utility company will then deduct this value from your utility bill each month.
  • Rebates: A solar rebate is a partial refund after the purchase of your solar system. Rebates could be offered by your local utility company, your state or your county. The discount that rebates offer is normally applied to the price of solar panels before tax credits are calculated.
  • Tax Credits: These credits are dollar-for-dollar reductions (not deductions) in the amount of tax that you owe the government.
  • Tax Exemptions: Your solar system might qualify for both sales tax and property tax exemptions. Sales tax exemptions are applied at the time of purchase. Property tax exemptions allow you to ignore the value that solar panels add when calculating property taxes on your house.
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Federal Solar Incentives

When thinking about solar incentives, you likely think of federal incentives first. An incentive that most people are likely to be familiar with is the Federal Solar Investment Tax Credit (ITC). This is a tax credit for a predetermined percentage of the cost of your solar system.

The ITC initially applied to 30% of the total cost of solar panel installation, although that number has fluctuated slightly over the years between 26-30%. The installation date of your solar system will determine what percentage you qualify for. The cost of installation includes the panels themselves as well as the cost of equipment, labor and accessories. There is no maximum amount you can claim. The ITC applies to solar systems installed after January 1, 2006, on your primary or secondary residence. The residence must be owned by you and in the United States.

Have questions about how the ITC applies to your specific situation? Contact your local Derby solar panel installer to get more information.

The Inflation Reduction Act, passed in August 2022, added more provisions to the ITC (as well as retitling it the Clean Energy Credit). The Clean Energy Credit is valid until 2035. Any solar installation project that is completed between January 1, 2022, and December 31, 2032, may qualify for a 30% tax credit; this amount will decrease slightly each year until the end of the current program. Starting in 2023, it will also be easier to obtain credits for energy storage systems under the new laws.

More information about the new Inflation Reduction Act can be found here. To best understand how the new Clean Energy Credit will apply to you, talk to your local Derby solar installation company.

State & Local Solar Incentives

There are more than just federal solar incentives; tax credits, rebates and more might also be offered at the state and local level. The incentives — which might be given by your county or municipality, or by the state of Connecticut — might be offered on an ongoing basis, or for only a limited time.

Next Steps for Installing Solar in Derby

The nationwide use of solar energy has gone up significantly in the last 15 years, in part thanks to the proliferation of solar incentives. You may get these incentives from the federal government, the Connecticut government or your local utility company. Call your local solar panel installation expert today to find out more information and to save the most money possible on solar panels for your Derby home.

EcoWatch's Derby, CT Solar Incentives FAQs

If I already have solar panels, can I still claim incentives?

If your solar panels were installed after January 1, 2022, you may qualify for the newly increased 30% tax credit under the Inflation Reduction Act. If you had your system installed between 2006 and 2021, you might qualify for a tax credit between 26% and 30%, depending on the date of installation. Talking to the company that installed your system, or any local Derby solar installer, can help you understand what incentives you can apply for.

What are the best solar panel installation companies near me?

To learn about the top solar panel installers near you, take a look at our article on the best solar companies in Derby.

How long until the federal solar tax credit ends?

The Clean Energy Credit (formerly named the federal solar tax credit, or the ITC), currently ends on January 1, 2035. Currently set at 30%, the credit will drop to 26% in 2033 and to 22% in 2034.

Can I apply for incentives both towards the initial cost of solar panels, and later as reimbursement?

Yes, you can claim both tax credits and rebates towards the cost of solar panels. Depending on which incentives you are eligible for, they may apply in a different order. Be sure to talk to your solar installer or a local tax professional to confirm that you are claiming incentives correctly and getting the most money you can.

Can I use a combination of multiple types of renewable energy to power my home?

Yes, you can employ multiple types of renewable energy to power your home, such as a combination of geothermal and solar. You can also use both renewable energy sources and a backup source of non-renewable energy. You should discuss your proposed plan with your local Derby solar panel installer, to get an understanding of what will be needed and what incentives you will or won't qualify for.

Our goal is to reach as many people as we can with sensible solutions like solar energy. Our team of full-time local researchers collects solar price and installation data for every city in America then compiles it to create these digestible city guides. If you want to read our solar expert's opinion on the top solar companies featured here, follow this link.

Solar incentive research was conducted by Melissa Smith and Karsten Neumeister. Local data analysis was conducted by James Savino. See something we missed or could do better? Email the editor.

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