How much do solar panels cost in 78209?

A standard 6kW residential solar system in 78209 (San Antonio, TX) costs approximately $16,800 before incentives. After the 30% federal Investment Tax Credit, the net cost is $11,760.

How much will I save with solar panels in 78209?

Homeowners in 78209 can expect to save approximately $1,452 per year on electricity bills with a 6kW solar system, for a total of around $36,300 over 25 years.

How long is the payback period for solar in 78209?

The estimated payback period for a 6kW solar installation in 78209 is 8.1 years after the federal tax credit. This is based on 5.8 kWh/m²/day average solar irradiance and local electricity rates of $0.143/kWh.

Solar Panel Cost in 78209

Last updated April 14, 2026 · Source: NREL and SEIA

San Antonio, Texas · Good ROI

Payback 8.1 years

6kW System Cost Breakdown

Gross Installation Cost $16,800 $2.8/W installed

Federal Tax Credit (30%) −$5,040 ITC through 2032

Net Cost After Credit $11,760 Your out-of-pocket cost

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Savings & ROI for 78209

Annual Electricity Savings $1,452 At $0.143/kWh local rate

Annual Solar Production 10,155 kWh 5.8 kWh/m²/day irradiance

Break-Even Point 8.1 years Good ROI

25-Year Net Savings +$24,540 After total system cost

Solar Loan Calculator

Financing a 6kW solar system in San Antonio? Estimate your monthly payment and total interest below.

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Assumes fixed-rate loan. Actual rates vary by lender and credit score. Solar-specific loans from Mosaic, GoodLeap, or Sunlight often offer lower rates than personal loans.

Solar Resource in San Antonio

San Antonio (78209) receives an average of 5.8 kWh/m²/day of solar irradiance, based on latitude 29.462°N and Texas regional weather patterns from NREL data. At the local electricity rate of $0.143/kWh, a 6kW system generates roughly $1,452 per year in bill savings.

Solar irradiance vs. US average (4.5 kWh/m²/day)

07.5 kWh/m²/day

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Nearby Zip Codes in San Antonio

78201 San Antonio, TX 8.1 yr payback $1,452/yr savings 78205 San Antonio, TX 8.1 yr payback $1,452/yr savings 78216 San Antonio, TX 8.1 yr payback $1,452/yr savings 78258 San Antonio, TX 8.1 yr payback $1,451/yr savings

How We Calculate Solar Costs for 78209

Costs are based on the average price per watt for Texas ($2.8/W), applied to a standard 6kW residential system. Solar irradiance is derived from NREL PVWatts data for latitude 29.462°N, adjusted for local weather patterns. Electricity rate uses the Texas EIA average of $0.143/kWh.

The 30% federal Investment Tax Credit (ITC) applies as a credit against your federal income tax liability. Many states offer additional credits; check your state's energy office for local incentives.