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Solar Panel Cost in Houston, TX

Estimated costs and savings for ZIP code 77003 — 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

$1,792

$149/month

Payback Period

11.3 yrs

Break-even

Peak Sun Hours

5.5

hrs/day avg

Solar System Cost Breakdown — Houston, TX

Estimated costs and savings for different residential solar system sizes in ZIP 77003. Costs based on TX average of $2.90/W and utility rate of $0.15/kWh.

System Cost Savings/yr Payback
4 kW $11,600 $1,024 11.3 yrs
5 kW $14,500 $1,280 11.3 yrs
6 kW $17,400 $1,536 11.3 yrs
7 kW (typical) $20,300 $1,792 11.3 yrs
8 kW $23,200 $2,048 11.3 yrs
10 kW $29,000 $2,560 11.3 yrs

Solar Production in Houston, 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

$0.15/kWh

Above-average rates — good solar savings potential

Cost Per Watt in TX

$2.90/W

Below national average — competitive market

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Solar Panel FAQ — Houston, TX

How much do solar panels cost in Houston, TX?
A typical 7kW solar system in Houston, TX (ZIP 77003) 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 Houston?
The average solar payback period in Houston, TX is approximately 11.3 years for a 7kW system. With estimated annual savings of $1,792, 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 77003?
Homeowners in Houston, TX (ZIP 77003) can save approximately $149 per month or $1,792 per year with a standard 7kW solar system. Over 25 years, total savings can exceed $44,800, depending on utility rate increases.
How many peak sun hours does Houston get?
Houston, 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 Houston?
The average home in Houston, 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 77003.

Solar Tools for Texas

ROI Calculator

Exact payback analysis

System Sizer

Find your ideal kW

Incentive Finder

TX rebates & credits

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