Solar Payback Period in Louisiana (2026)
Updated 2026-07-07 · MySunROI Research
The average solar payback period in Louisiana is 11.1 years for a 6 kW system (2026). After break-even, electricity savings continue for 15–20+ more years.
Free quote comparison
Compare solar quotes in Louisiana
Free — compare pre-screened local installers. No obligation.
MySunROI may earn a fee if you request quotes through partner links. See our disclaimer.
Payback timeline
Net install cost after 30% ITC: $10,400. Annual savings: ~$940. Simple payback ≈ 11.1 years.
Actual payback varies by system size, roof, shading, and rate plan.
- Low: 8.2 years · Avg: 11.1 · High: 15.5 years
What affects payback in Louisiana
Louisiana install costs average $2.48/W with estimated 11.1-year payback on a 6 kW system — below US national averages.
- Electricity rate (11.2¢/kWh)
- Install cost ($2/watt)
- Production (4.5 peak sun hours)
- Compare at least three installer quotes in Louisiana
- Model payback using your actual utility rate and usage
Savings after payback
30-year savings: $19,250–$32,400.
Louisiana quick stats
- 6 kW after ITC
- $10,400
- Payback
- 11.1 years
- Electric rate
- 11.2¢/kWh
- Annual savings
- $940
Frequently Asked Questions
Average payback in Louisiana?
11.1 years for a 6 kW system after ITC.
Is 10 years good?
Yes — under 12 years is solid; under 8 is excellent.
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 — not tax or financial advice. Estimates based on NREL PV cost benchmarks, EIA electricity rates, and 2026 installer pricing surveys.