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Solar Panel Cost in Austin, TX

Estimated costs and savings for ZIP code 78702 — updated for 2026

Urgent tax credit deadlines

  • Section 30D EV credit (up to $7,500) — expires June 30, 2026 (12 days left).
  • Section 48E solar ITC safe harbor — construction must start by July 4, 2026 (16 days left).
See the full deadline tracker

Gross Cost

$20,300

7kW system

Annual Savings

$1,314

$110/month

Payback Period

15.4 yrs

Break-even

Peak Sun Hours

5.5

hrs/day avg

Solar System Cost Breakdown — Austin, TX

Estimated costs and savings for different residential solar system sizes in ZIP 78702. Costs based on TX average of $2.90/W and utility rate of $0.11/kWh.

System Cost Savings/yr Payback
4 kW $11,600 $751 15.4 yrs
5 kW $14,500 $939 15.4 yrs
6 kW $17,400 $1,126 15.5 yrs
7 kW (typical) $20,300 $1,314 15.4 yrs
8 kW $23,200 $1,502 15.4 yrs
10 kW $29,000 $1,877 15.5 yrs

Solar Production in Austin, Texas

Average Peak Sun Hours

5.5 hours/day

Excellent solar resource — among the best in the US

Est. Annual Production (7kW)

11,945 kWh

Based on 5.5 PSH × 7kW × 365 days × 85% efficiency

Average Utility Rate

$0.11/kWh

Lower rates — solar savings take longer to accumulate

Cost Per Watt in TX

$2.90/W

Below national average — competitive market

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Solar Panel FAQ — Austin, TX

How much do solar panels cost in Austin, TX?
A typical 7kW solar system in Austin, TX (ZIP 78702) costs approximately $20,300 before any incentives. This works out to about $2.90 per watt installed. Smaller systems start around $11,600, while larger 10kW systems can cost up to $29,000.
How long is the solar payback period in Austin?
The average solar payback period in Austin, TX is approximately 15.4 years for a 7kW system. With estimated annual savings of $1,314, the system pays for itself and then generates free electricity for the remaining 15-20+ years of its lifespan.
How much can I save with solar panels in 78702?
Homeowners in Austin, TX (ZIP 78702) can save approximately $110 per month or $1,314 per year with a standard 7kW solar system. Over 25 years, total savings can exceed $32,850, depending on utility rate increases.
How many peak sun hours does Austin get?
Austin, TX receives an average of 5.5 peak sun hours per day. This is above the national average, making solar highly effective in this area.
What size solar system do I need for my home in Austin?
The average home in Austin, TX needs a 7kW solar system to offset their electricity usage. The exact size depends on your monthly electric bill, roof orientation, and available space. A 7kW system would produce approximately 11,945 kWh annually in ZIP 78702.

Solar Tools for Texas

ROI Calculator

Exact payback analysis

System Sizer

Find your ideal kW

Incentive Finder

TX rebates & credits

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