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Typical system size and price
Many Texas homes use 12,000–18,000 kWh a year, so systems commonly land around 7–12 kW. Each kW of panels in Texas typically produces about 1,300–1,600 kWh a year, depending on location, tilt and shade.
Installed prices in the U.S. commonly run about $2.50–$3.50 per watt before incentives, so a 9 kW system often costs roughly $22,000–$32,000. Prices vary widely by installer, equipment and roof, which is why multiple quotes matter.
Example payback (illustration only)
| Assumption | Value |
|---|---|
| System | 9 kW at $2.90/W = $26,100 |
| Federal residential credit | $0 (ended after 2025) |
| Production | 9 kW × 1,450 kWh = about 13,050 kWh/yr |
| Value of solar energy | ~60% used at home at 15¢, ~40% exported at 7¢ = ~$1,540/yr |
| Simple payback | ~17 years before any utility rebate |
Illustrative numbers only. Your rate, buyback plan and price change the result a lot. Utility rebates (where offered) can shorten payback substantially.
What moves the price
- Panel and inverter brand; microinverters and optimizers usually cost more
- Roof type (tile and metal are pricier), and roof pitch
- Main panel upgrades, often $1,500–$4,000 if needed
- Batteries, typically $10,000+ more
- Dealer fees hidden in "low APR" loans
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Partner link coming soonFrequently asked questions
How is solar payback calculated?
Divide the net installed cost by your estimated yearly savings (avoided electricity purchases plus buyback credits). A Texas system often takes over a decade to pay back without the federal credit; your quote should show its assumptions.
Do batteries make solar pay off faster?
Usually not on their own, since they add cost. They add backup power and can help if your buyback rate is low.