Solar panels installed on a residential home in Connecticut

Solar Panel Cost in Connecticut

Updated 2026 guide to solar panel prices, savings, and payback period in Connecticut.

Estimated Solar Savings

$3.10Cost Per Watt
$18,600Avg. System Cost
7Year Payback
$38,00025-Year Savings

Solar Panel System Costs in Connecticut

Below are estimated costs for different solar panel system sizes in Connecticut, including the 30% federal solar tax credit.

System SizeCost Before IncentivesFederal Tax Credit (30%)Net CostEst. Annual Production
4 kW$12,400-$3,720$8,6805,548 kWh
6 kWMost Popular$18,600-$5,580$13,0208,322 kWh
8 kW$24,800-$7,440$17,36011,096 kWh
10 kW$31,000-$9,300$21,70013,870 kWh
12 kW$37,200-$11,160$26,04016,644 kWh

What Affects Solar Panel Cost in Connecticut?

The average cost of solar panels in Connecticut is $310/watt before incentives. For a typical 6kW residential system, that means a total cost of about $18,600 before the federal tax credit.

After applying the 30% federal Investment Tax Credit (ITC), your net cost drops to approximately $13,020.Connecticut homeowners typically see a payback period of 7 years and save an estimated $38,000 over 25 years.

Solar costs in Connecticut have dropped about 40% over the last decade. High electricity rates combined with strong incentives make solar a smart financial decision.

Factors that affect your cost:

  • System size: Larger systems cost more but have a lower cost per watt
  • Equipment quality: Premium panels and inverters cost more but offer better efficiency
  • Roof complexity: Steep roofs, multiple levels, or shading can increase installation costs
  • Local labor rates: Installation costs vary by region within Connecticut
  • Incentives: State and local programs can significantly reduce your out-of-pocket cost
Beautiful home with solar panels in Connecticut demonstrating residential solar installation

Solar Incentives in Connecticut

Federal Solar Investment Tax Credit

30% Federal Tax Credit (ITC)

Connecticut homeowners can claim the 30% federal ITC. Combined with high electricity rates, this makes solar especially valuable in the state.

30%

State & Local Incentives

Residential Solar Investment Program (RSIP)

Rebate

Upfront incentives for residential solar installations through the Connecticut Green Bank.

Performance-based incentive paid over time

Property Tax Exemption

Property Tax

Connecticut law allows municipalities to offer property tax exemptions for solar energy systems.

100% property tax exemption (varies by municipality)

Sales Tax Exemption

Sales Tax

Solar energy systems are exempt from Connecticut's 6.35% sales tax.

100% state sales tax exemption

Connecticut Green Bank Financing

Loan

Low-interest financing options for solar installations through the Connecticut Green Bank.

Below-market interest rates with flexible terms

Net Metering

Connecticut offers net metering for residential solar systems, allowing customers to receive credits at the full retail rate for excess generation.

Available

SRECs

Connecticut's Renewable Portfolio Standard includes a solar carve-out. Homeowners can earn Renewable Energy Credits (RECs) for their solar production.

Est. Value: $30-$50 per REC

Available
View all Connecticut solar incentives →

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Top Solar Companies in Connecticut

Affordable Solar Roof & Air

4.9(721 reviews)

Years in Business: 14

Service Area: Bridgeport

Phone: (800) 515-1254

Sunergy Solutions LLC

4.9(146 reviews)

Years in Business: 6

Service Area: Bridgeport

Phone: (603) 289-1090

Green Power Energy

4.8(406 reviews)

Years in Business: 17

Service Area: Bridgeport

Phone: (855) 525-1675

Venture Home Solar, LLC

4.5(732 reviews)

Years in Business: 11

Service Area: Connecticut

Phone: (888) 417-2086

Sunrun Inc.

3.0(3368 reviews)

Years in Business: 19

Service Area: Connecticut

Phone: (855) 478-6786

View all Connecticut solar companies →

Solar Panel Cost FAQ - Connecticut

The cost of solar panels in Connecticut typically ranges from $2.50 to $3.50 per watt before incentives. For a standard 6 kW residential system, homeowners in Connecticut can expect to pay between $15,000 and $21,000 before the federal tax credit. After applying the 30% federal Investment Tax Credit, the net cost drops to approximately $10,500-$14,700. Actual costs vary based on your specific roof, chosen equipment, and installer. We recommend getting at least three quotes from local Connecticut solar installers to find the best price.

The average solar payback period in Connecticut depends on local electricity rates, available incentives, and sun exposure. Most Connecticut homeowners see a payback period between 6 and 10 years. After the payback period, you essentially enjoy free electricity for the remaining 15-20+ years of your system's life. Higher local electricity rates and additional state incentives can shorten the payback period significantly. A qualified Connecticut solar installer can calculate your specific payback period based on your energy usage and roof characteristics.

Connecticut homeowners who install solar panels typically save between $20,000 and $50,000 over 25 years, depending on system size, electricity rates, and available incentives. These savings come from reduced or eliminated electricity bills, net metering credits, and any applicable SREC income. As electricity rates in Connecticut continue to rise (historically averaging 2-3% annually), your savings grow each year. The combination of the 30% federal tax credit and any Connecticut-specific incentives helps maximize your return on investment.

The right solar system size for your Connecticut home depends on your electricity consumption, roof space, and budget. The average Connecticut home uses approximately 10,000-11,000 kWh per year, which typically requires a 6-8 kW solar system. To determine your ideal size, review your annual electricity usage on recent utility bills. Factors like Connecticut's average peak sun hours, your roof orientation, and any shading will affect how many panels you need. A professional Connecticut solar installer will use satellite imagery and your usage data to recommend the optimal system size.

Yes, solar is generally worth the investment for Connecticut homeowners in 2025. With solar panel costs at historic lows, the 30% federal tax credit still available, and electricity rates continuing to rise, the financial case for solar in Connecticut is strong. Most Connecticut homeowners who go solar see positive returns within 6-10 years, followed by 15-20+ years of significant savings. Additionally, solar panels increase your home value, provide energy independence, and protect against future electricity rate increases. The best way to determine if solar is right for your Connecticut home is to get a free, customized quote from a qualified local installer.

Solar Panel Costs by City in Connecticut

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30%Federal Tax Credit
25+Year Savings
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