
Solar Panel Cost in Connecticut
Updated 2026 guide to solar panel prices, savings, and payback period in Connecticut.
Estimated Solar 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 Size | Cost Before Incentives | Federal Tax Credit (30%) | Net Cost | Est. Annual Production |
|---|---|---|---|---|
| 4 kW | $12,400 | -$3,720 | $8,680 | 5,548 kWh |
| 6 kWMost Popular | $18,600 | -$5,580 | $13,020 | 8,322 kWh |
| 8 kW | $24,800 | -$7,440 | $17,360 | 11,096 kWh |
| 10 kW | $31,000 | -$9,300 | $21,700 | 13,870 kWh |
| 12 kW | $37,200 | -$11,160 | $26,040 | 16,644 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

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.
State & Local Incentives
Residential Solar Investment Program (RSIP)
RebateUpfront incentives for residential solar installations through the Connecticut Green Bank.
Property Tax Exemption
Property TaxConnecticut law allows municipalities to offer property tax exemptions for solar energy systems.
Sales Tax Exemption
Sales TaxSolar energy systems are exempt from Connecticut's 6.35% sales tax.
Connecticut Green Bank Financing
LoanLow-interest financing options for solar installations through the Connecticut Green Bank.
Net Metering
Connecticut offers net metering for residential solar systems, allowing customers to receive credits at the full retail rate for excess generation.
AvailableSRECs
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
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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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