Solar Panel Cost in Lafayette, LA (2026)
Solar panel costs in Lafayette, LA typically run below the Louisiana state average. A 6 kW system in Lafayette costs about $13,950 before the 30% federal ITC, with payback around 11.1 years at local utility rates.
Quick answer
In Lafayette, a 6 kW solar panel system costs about $13,950 installed (11.1-year payback). After the 30% federal tax credit, net cost is roughly $9,800. Annual savings: ~$940/year at 11.2¢/kWh.
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Estimate for Louisiana
$6,900net after 30% ITC
~4 kW · 10 panels · $9,900 before credits · 11.2¢/kWh
Annual savings
$625
Payback
11 yrs
25-year savings
$16,426
25-year savings timeline
Includes ~3% utility rate growth & 0.5%/yr panel degradation
Lafayette vs US Average
| Metric | LA | US avg |
|---|---|---|
| 6 kW system (before credit) | $13,950 | $16,271 |
| Net cost after 30% ITC | $9,800 | $11,390 |
| Cost per watt | $0.00/W | — |
| Annual electricity savings | $940 | $1,335 |
| Payback period (years) | 11.1 yrs | 9 yrs |
| Electricity rate | 11.2¢/kWh | — |
Updated 2026-07-07. Estimates only.
What affects solar costs in Lafayette?
Lafayette metro solar pricing runs 5–10% below the Louisiana state average, reflecting local labor, permitting, and installer competition. Solar installation costs in Louisiana reflect local labor rates, permit fees, and utility interconnection rules. A typical 6 kW system runs $11,550–$20,440 before the 30% federal tax credit, with net cost around $8,080–$14,310.
Lafayette homeowners should compare at least three local quotes specifying panel brand, inverter type, and production guarantee. Louisiana averages 11.2¢/kWh and 4.5 peak sun hours per day — moderate solar production potential for rooftop systems.
Utility rules in Louisiana affect how solar credits apply to your bill — verify net metering or buyback terms for your specific provider serving Lafayette.
Lafayette solar ROI depends on Louisiana electricity rates, local install competition, and roof suitability. Louisiana install costs average $2.48/W with estimated 11.1-year payback on a 6 kW system — below US national averages.
Lafayette solar snapshot
- 6 kW system: $10,850 – $19,200
- After 30% ITC: $9,800
- Electric rate: 11.2¢/kWh · Peak sun: 4.5 hrs/day
- Payback: ~11.1 years · Annual savings: ~$940
How to maximize solar ROI in Lafayette
- Compare Lafayette installer quotes on cost per watt ($/W)
- Check Louisiana incentives — state guide
- Review how to choose installers in Louisiana
- Compare at least three installer quotes in Louisiana
- Model payback using your actual utility rate and usage
Frequently Asked Questions
How much do solar panels cost in Lafayette?
A 6 kW solar system in Lafayette, LA typically costs $10,850–$19,200 before incentives, or $9,800 after the 30% federal tax credit.
Is solar worth it in Lafayette?
With 11.2¢/kWh electricity rates and 4.5 peak sun hours, Lafayette homeowners often see 11.1-year payback. Use our calculator for your roof and usage.
How does Lafayette compare to Louisiana?
Lafayette install pricing is among the more affordable metros in Louisiana.
Related pages
How We Calculate Solar Costs
MySunROI estimates combine NREL residential PV installed-price benchmarks, EIA state electricity rates, and regional labor modifiers — updated 2026-07-07.
Estimates only. Last updated 2026-07-07. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.