Connecticut Solar Incentives

Connecticut Solar Incentives, Tax Credits, and Rebates

There are several incentives in Connecticut that make investing in solar and renewable energy cost-effective.

Connecticut is a solar-friendly state, offering tax credits and grants to offset the costs of switching to solar power and increase homeowners' return on investment. On average, solar panel installation in Connecticut costs $2.80 per watt, which is higher than the national average. To help homeowners save money and maximize their return on investment, the state offers several incentive programs, including sales and property tax exemptions, and low-interest loan programs.

The Sales and Use Tax Exemption for Solar and Geothermal Systems exempts homeowners from paying sales tax on renewable energy equipment, saving an average of $1,334 in up-front costs. The property tax exemption prevents solar panel installation from raising property taxes, protecting homeowners from increased taxes in the long term.

Connecticut also offers state-funded loan programs, such as Smart-E Loans, the Home Energy Solutions Loan Program, and the Energy Conservation Loan, to help residents finance solar energy systems.

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Connecticut Incentive Database

Name	State	Category	Type
Alternative Fueled Vehicle Charging Station Credit	CT	Financial Incentive	Corporate Tax Credit
Connecticut Clean Energy Fund	CT	Regulatory Policy	Public Benefits Fund
Renewables Portfolio Standard	CT	Regulatory Policy	Renewables Portfolio Standard
Energy Conservation Loan	CT	Financial Incentive	Loan Program
Alternative Fuel Vehicles and Associated Equipment	CT	Financial Incentive	Sales Tax Incentive
Fuel Mix and Emissions Disclosure	CT	Regulatory Policy	Generation Disclosure
Residential Renewable Energy Solutions	CT	Regulatory Policy	Net Metering
CCEF - Commercial, Industrial, Institutional PV Grant Program	CT	Financial Incentive	Grant Program
Solar and Wind Contractor Licensing	CT	Regulatory Policy	Solar/Wind Contractor Licensing
CCEF - Renewable Energy Projects in Pre-Development Program	CT	Financial Incentive	Loan Program
CCEF - Project 150 Initiative	CT	Financial Incentive	Grant Program
New Energy Technology Program	CT	Financial Incentive	Industry Recruitment/Support
Interconnection Standards	CT	Regulatory Policy	Interconnection
Connecticut Green Power Purchase Plan	CT	Regulatory Policy	Green Power Purchasing
CEFIA - Residential Solar PV Rebate Program	CT	Financial Incentive	Rebate Program
Operational Demonstration Program	CT	Financial Incentive	Industry Recruitment/Support
Sales and Use Tax Exemption for Energy-Efficient Products	CT	Financial Incentive	Sales Tax Incentive
On-Site Renewable DG Program	CT	Financial Incentive	Grant Program
The United Illuminating Company - Small Business Energy Advantage Program	CT	Financial Incentive	Rebate Program
The United Illuminating Company - Energy Star Incentives Program	CT	Financial Incentive	Rebate Program
The United Illuminating Company - Energy Conscious Blueprint Grant Program	CT	Financial Incentive	Grant Program
The United Illuminating Company - Energy Conscious Blueprint Rebate Program	CT	Financial Incentive	Rebate Program
The United Illuminating Company - Cool Choice Commercial Energy Efficiency Rebate Program	CT	Financial Incentive	Rebate Program
The United Illuminating Company - Energy Opportunities Program	CT	Financial Incentive	Rebate Program
Connecticut Light & Power - Energy Opportunities Efficiency Program	CT	Financial Incentive	Rebate Program
Connecticut Light & Power - Commercial Energy Efficiency Rebates	CT	Financial Incentive	Rebate Program
Connecticut Light & Power - Small Business Energy Advantage Program	CT	Financial Incentive	Rebate Program
Connecticut Light & Power - Express Rebate Programs	CT	Financial Incentive	Rebate Program
Connecticut Light & Power - Small Industrial and Commercial Energy Efficiency Loan Program	CT	Financial Incentive	Loan Program
Connecticut Light & Power - Operation and Maintenance Program	CT	Financial Incentive	Rebate Program
Smart-E loans	CT	Financial Incentive	Loan Program
Connecticut Appliance and Equipment Energy Efficiency Standards	CT	Regulatory Policy	Appliance/Equipment Efficiency Standards
Connecticut Clean Energy Communities	CT	Regulatory Policy	Green Power Purchasing
DPUC - Capital Grants for Customer-Side Distributed Resources	CT	Financial Incentive	Grant Program
Low-Interest Loans for Customer-Side Distributed Resources	CT	Financial Incentive	Loan Program
Groton Utilities - Residential Energy Efficiency Rebate Program	CT	Financial Incentive	Rebate Program
Groton Utilities - Commercial & Industrial Energy Efficiency Rebate Programs	CT	Financial Incentive	Rebate Program
Energy Efficiency Fund	CT	Regulatory Policy	Public Benefits Fund
Energy Efficiency Requirements for State Government	CT	Regulatory Policy	Energy Standards for Public Buildings
Building Energy Code	CT	Regulatory Policy	Building Energy Code
Sales and Use Tax Exemption for Solar and Geothermal Systems	CT	Financial Incentive	Sales Tax Incentive
Connecticut Light & Power - Summer Saver Rewards	CT	Financial Incentive	Rebate Program
Mass Energy - Renewable Energy Certificate Incentive	CT	Financial Incentive	Performance-Based Incentive
CCEF - Affordable Housing Initiative Solar PV Rebate Program	CT	Financial Incentive	Rebate Program
CT Solar Lease	CT	Financial Incentive	Leasing Program
Norwich Public Utilities - Commercial Energy Efficiency Rebate Program	CT	Financial Incentive	Rebate Program
Norwich Public Utilities - Zero Percent Financing Program	CT	Financial Incentive	Loan Program
Furnace and Boiler Replacement Rebate Program	CT	Financial Incentive	Rebate Program
Commercial and Industrial Rebate Program	CT	Financial Incentive	Rebate Program
CL&P - Residential Heating and Cooling Rebates	CT	Financial Incentive	Rebate Program
Energy Efficiency Fund (Electric) - Residential Heating and Cooling Rebates	CT	Financial Incentive	Rebate Program
New Generation Energy - Community Solar Lending Program	CT	Financial Incentive	Loan Program
Solar Thermal Incentive Program	CT	Financial Incentive	Rebate Program
Geothermal Rebate Program	CT	Financial Incentive	Rebate Program
Connecticut - Residential Energy-Efficient Appliance Rebates	CT	Financial Incentive	Rebate Program
Connecticut Light & Power - Residential New Construction Program	CT	Financial Incentive	Rebate Program
The United Illuminating Company - Residential New Construction Program	CT	Financial Incentive	Rebate Program
Southern Connecticut Gas - Custom Commercial Energy Efficiency Program	CT	Financial Incentive	Rebate Program
Connecticut Natural Gas - Cooking and Water Heating Rebate Program	CT	Financial Incentive	Rebate Program
(Gas) Commercial and Industrial Gas Rebate Program	CT	Financial Incentive	Rebate Program
(Electric and Gas ) Home Energy Solutions Rebate Program	CT	Financial Incentive	Rebate Program
Connecticut Light and Power (Electric) - Heating and Cooling Rebate Program	CT	Financial Incentive	Rebate Program
(Electric and Gas) Residential New Construction Program	CT	Financial Incentive	Rebate Program
(Electric) Commercial and Industrial Energy Efficiency Programs	CT	Financial Incentive	Rebate Program
Energy Efficiency Fund (Electric) - Commercial New Construction Rebate Program	CT	Financial Incentive	Rebate Program
Connecticut Light & Power - Small Business Energy Advantage Loan Program	CT	Financial Incentive	Loan Program
Connecticut Light & Power - Energy Conscious Blueprint Grant Program	CT	Financial Incentive	Grant Program
CCEF - ARRA Commercial Solar PV Program	CT	Financial Incentive	Grant Program
Renewable Portfolio Standards - Energy Efficiency Component	CT	Regulatory Policy	Energy Efficiency Resource Standard
Energy Efficiency Fund (Electric and Gas) - Residential Energy Efficiency Financing	CT	Financial Incentive	Loan Program
Sales and Use Taxes for Items Used in Renewable Energy Industries	CT	Financial Incentive	Industry Recruitment/Support
Litchfield Hills Region - Business Energy Efficiency Program	CT	Financial Incentive	Rebate Program
Norwich Public Utilities (Gas) - Residential Energy Efficiency Rebate Program	CT	Financial Incentive	Rebate Program
Energy Efficiency Fund (Gas) - Home Energy Solutions and Performance Programs	CT	Financial Incentive	Rebate Program
Small Business Energy Advantage Loan Program	CT	Financial Incentive	Loan Program
CCEF - Alpha Program	CT	Financial Incentive	Industry Recruitment/Support
Local Option - Building Permit Fee Waivers for Renewable Energy Projects	CT	Regulatory Policy	Solar/Wind Permitting Standards
Residential Solar Investment Program	CT	Financial Incentive	Rebate Program
Exemption from Electric Generation Tax	CT	Financial Incentive	Sales Tax Incentive
The United Illuminating Company - ZREC and LREC Long Term Contracts	CT	Financial Incentive	Performance-Based Incentive
Connecticut Light & Power - ZREC and LREC Long Term Contracts	CT	Financial Incentive	Performance-Based Incentive
Combined Heat and Power Grant Program	CT	Financial Incentive	Grant Program
Local Option - Commercial PACE Financing	CT	Financial Incentive	PACE Financing
Connecticut Light & Power - Small ZREC Tariff	CT	Financial Incentive	Performance-Based Incentive
The United Illuminating Company - Small ZREC Tariff	CT	Financial Incentive	Performance-Based Incentive
CT Solar Loan	CT	Financial Incentive	Loan Program
Local Option - Property Tax Exemption for Renewable Energy Systems	CT	Financial Incentive	Property Tax Incentive
Clean Energy On-Bill Financing	CT	Financial Incentive	Loan Program
Combined Heat and Power Loan Program	CT	Financial Incentive	Loan Program
The United Illuminating Company - Small ZREC Tariff	CT	Financial Incentive	Solar Renewable Energy Credit Program
Eversource - Small ZREC Tariff	CT	Financial Incentive	Solar Renewable Energy Credit Program
Eversource - ZREC and LREC Long Term Contracts	CT	Financial Incentive	Solar Renewable Energy Credit Program
The United Illuminating Company - ZREC and LREC Long Term Contracts	CT	Financial Incentive	Solar Renewable Energy Credit Program
Multifamily Energy Conservation Loan Program	CT	Financial Incentive	Loan Program
Small Business & Municipal Loan Program	CT	Financial Incentive	Loan Program
Energize Connecticut Residential and Commercial Rebates	CT	Financial Incentive	Rebate Program
(Electric and Gas) Residential Rebate Program	CT	Financial Incentive	Rebate Program
Multifamily Sherpa Pre-Development Energy Loan Program	CT	Financial Incentive	Loan Program
Low-Income Multifamily Energy Loan Program	CT	Financial Incentive	Loan Program
Zero Interest Energy Efficiency Loan Program (Gas and Electric)	CT	Financial Incentive	Loan Program
VW Settlement Electric Vehicle Supply Equipment Grants	CT	Financial Incentive	Grant Program
Connecticut Hydrogen and Electric Automobile Purchase Rebate (CHEAPR)	CT	Financial Incentive	Rebate Program
Connecticut Green Energy Building Solutions	CT	Financial Incentive	Green Building Incentive
Groton Utilities - Electric Vehicle Rebate Program	CT	Financial Incentive	Rebate Program
Diesel Emissions Mitigation Program	CT	Financial Incentive	Grant Program
Energy Storage Target	CT	Regulatory Policy	Energy Storage Target
Non-Residential Renewable Energy Solutions	CT	Regulatory Policy	Net Metering
Shared Clean Energy Facility (SCEF) Program	CT	Regulatory Policy	Community Solar Rules
Energy Storage Goal	CT	Regulatory Policy	Energy Storage Target
Energy Storage Solutions Program	CT	Financial Incentive	Rebate Program
Offshore Wind Energy Target	CT	Regulatory Policy	Offshore Wind Energy Target
Solar Access Law	CT	Regulatory Policy	Solar/Wind Access Policy
Tax-Exempt Financing for Green Buildings, Renewable Energy & Brownfield Redevelopment	US	Financial Incentive	Loan Program
Conservation Security Program (CSP) Production Incentive	US	Financial Incentive	Performance-Based Incentive
Business Energy Investment Tax Credit (ITC)	US	Financial Incentive	Corporate Tax Credit
Federal Excise Tax Exemption for Gasohol	US	Financial Incentive	Corporate Tax Exemption
Modified Accelerated Cost-Recovery System (MACRS)	US	Financial Incentive	Corporate Depreciation
Energy Star Financing and Mortgages	US	Financial Incentive	Loan Program
USDA Rural Housing Service Loans	US	Financial Incentive	Loan Program
Residential Energy Conservation Subsidy Exclusion (Corporate)	US	Financial Incentive	Corporate Tax Exemption
Renewable Energy Production Incentive (REPI)	US	Financial Incentive	Performance-Based Incentive
Renewable Electricity Production Tax Credit (PTC)	US	Financial Incentive	Corporate Tax Credit
Small Business Administration Loan Programs	US	Financial Incentive	Loan Program
Energy-Efficient Mortgages	US	Financial Incentive	Loan Program
USDA - Rural Energy for America Program (REAP) Grants	US	Financial Incentive	Grant Program
Office of Indian Energy Policy and Programs - Funding Opportunities	US	Financial Incentive	Grant Program
Green Power Purchasing Goal for Federal Government	US	Regulatory Policy	Green Power Purchasing
Energy-Efficient Commercial Buildings Tax Deduction	US	Financial Incentive	Corporate Tax Deduction
Energy-Efficient New Homes Tax Credit for Home Builders	US	Financial Incentive	Corporate Tax Credit
Energy-Efficient Appliance Manufacturing Tax Credit	US	Financial Incentive	Industry Recruitment/Support
Residential Energy Efficiency Tax Credit	US	Financial Incentive	Personal Tax Credit
Veterans Housing Guaranteed and Insured Loans	US	Financial Incentive	Loan Program
Federal Appliance Standards	US	Regulatory Policy	Appliance/Equipment Efficiency Standards
Energy Goals and Standards for Federal Agencies	US	Regulatory Policy	Energy Standards for Public Buildings
Clean Renewable Energy Bonds (CREBs)	US	Financial Incentive	Loan Program
Qualified Energy Conservation Bonds (QECBs)	US	Financial Incentive	Loan Program
U.S. Department of Treasury - Renewable Energy Grants	US	Financial Incentive	Grant Program
USDA - High Energy Cost Grant Program	US	Financial Incentive	Grant Program
USDA - Biorefinery, Renewable Chemical, and Biobased Product Manufacturing Assistance Program	US	Financial Incentive	Loan Program
USDA - Repowering Assistance Biorefinery Program	US	Financial Incentive	Grant Program
Title I Property Improvement Loans	US	Financial Incentive	Loan Program
USDA - Rural Energy for America Program (REAP) Energy Audit and Renewable Energy Development Assistance (EA/REDA) Program	US	Financial Incentive	Grant Program
Low Income Home Energy Assistance Program (LIHEAP)	US	Financial Incentive	Grant Program
Weatherization Assistance Program (WAP)	US	Financial Incentive	Grant Program
Fannie Mae Green Financing – Loan Program	US	Financial Incentive	Loan Program
Qualified Commercial Clean Vehicle Tax Credit	US	Financial Incentive	Corporate Tax Credit
Alternative Fuel Vehicle Refueling Property Tax Credit (Corporate)	US	Financial Incentive	Corporate Tax Credit
Alternative Fuel Vehicle Refueling Property Tax Credit (Personal)	US	Financial Incentive	Personal Tax Credit
Previously-Owned Clean Vehicle Tax Credit	US	Financial Incentive	Personal Tax Credit
Tax-Exempt Financing for Green Buildings, Renewable Energy & Brownfield Redevelopment	US	Financial Incentive	Loan Program
Conservation Security Program (CSP) Production Incentive	US	Financial Incentive	Performance-Based Incentive
Business Energy Investment Tax Credit (ITC)	US	Financial Incentive	Corporate Tax Credit
Federal Excise Tax Exemption for Gasohol	US	Financial Incentive	Corporate Tax Exemption
Modified Accelerated Cost-Recovery System (MACRS)	US	Financial Incentive	Corporate Depreciation
Energy Star Financing and Mortgages	US	Financial Incentive	Loan Program
USDA Rural Housing Service Loans	US	Financial Incentive	Loan Program
Residential Energy Conservation Subsidy Exclusion (Corporate)	US	Financial Incentive	Corporate Tax Exemption
Renewable Energy Production Incentive (REPI)	US	Financial Incentive	Performance-Based Incentive
Renewable Electricity Production Tax Credit (PTC)	US	Financial Incentive	Corporate Tax Credit
Small Business Administration Loan Programs	US	Financial Incentive	Loan Program
Energy-Efficient Mortgages	US	Financial Incentive	Loan Program
USDA - Rural Energy for America Program (REAP) Grants	US	Financial Incentive	Grant Program
Office of Indian Energy Policy and Programs - Funding Opportunities	US	Financial Incentive	Grant Program
Green Power Purchasing Goal for Federal Government	US	Regulatory Policy	Green Power Purchasing
Energy-Efficient Commercial Buildings Tax Deduction	US	Financial Incentive	Corporate Tax Deduction
Energy-Efficient New Homes Tax Credit for Home Builders	US	Financial Incentive	Corporate Tax Credit
Energy-Efficient Appliance Manufacturing Tax Credit	US	Financial Incentive	Industry Recruitment/Support
Residential Energy Efficiency Tax Credit	US	Financial Incentive	Personal Tax Credit
Veterans Housing Guaranteed and Insured Loans	US	Financial Incentive	Loan Program
Federal Appliance Standards	US	Regulatory Policy	Appliance/Equipment Efficiency Standards
Energy Goals and Standards for Federal Agencies	US	Regulatory Policy	Energy Standards for Public Buildings
Clean Renewable Energy Bonds (CREBs)	US	Financial Incentive	Loan Program
Qualified Energy Conservation Bonds (QECBs)	US	Financial Incentive	Loan Program
U.S. Department of Treasury - Renewable Energy Grants	US	Financial Incentive	Grant Program
USDA - High Energy Cost Grant Program	US	Financial Incentive	Grant Program
USDA - Biorefinery, Renewable Chemical, and Biobased Product Manufacturing Assistance Program	US	Financial Incentive	Loan Program
USDA - Repowering Assistance Biorefinery Program	US	Financial Incentive	Grant Program
Title I Property Improvement Loans	US	Financial Incentive	Loan Program
USDA - Rural Energy for America Program (REAP) Energy Audit and Renewable Energy Development Assistance (EA/REDA) Program	US	Financial Incentive	Grant Program
Low Income Home Energy Assistance Program (LIHEAP)	US	Financial Incentive	Grant Program
Weatherization Assistance Program (WAP)	US	Financial Incentive	Grant Program
Fannie Mae Green Financing – Loan Program	US	Financial Incentive	Loan Program
Qualified Commercial Clean Vehicle Tax Credit	US	Financial Incentive	Corporate Tax Credit
Alternative Fuel Vehicle Refueling Property Tax Credit (Corporate)	US	Financial Incentive	Corporate Tax Credit
Alternative Fuel Vehicle Refueling Property Tax Credit (Personal)	US	Financial Incentive	Personal Tax Credit
Previously-Owned Clean Vehicle Tax Credit	US	Financial Incentive	Personal Tax Credit

This information is sourced from DSIRE; the most comprehensive source of information on incentives and policies that support renewables and energy efficiency in the United States. Established in 1995, DSIRE is operated by the N.C. Clean Energy Technology Center at N.C. State University.