
Solar Panel Cost in Louisiana
Updated 2026 guide to solar panel prices, savings, and payback period in Louisiana.
Estimated Solar Savings
Solar Panel System Costs in Louisiana
Below are estimated costs for different solar panel system sizes in Louisiana, including the 30% federal solar tax credit.
| System Size | Cost Before Incentives | Federal Tax Credit (30%) | Net Cost | Est. Annual Production |
|---|---|---|---|---|
| 4 kW | $11,600 | -$3,480 | $8,120 | 7,008 kWh |
| 6 kWMost Popular | $17,400 | -$5,220 | $12,180 | 10,512 kWh |
| 8 kW | $23,200 | -$6,960 | $16,240 | 14,016 kWh |
| 10 kW | $29,000 | -$8,700 | $20,300 | 17,520 kWh |
| 12 kW | $34,800 | -$10,440 | $24,360 | 21,024 kWh |
What Affects Solar Panel Cost in Louisiana?
The average cost of solar panels in Louisiana is $290/watt before incentives. For a typical 6kW residential system, that means a total cost of about $17,400 before the federal tax credit.
After applying the 30% federal Investment Tax Credit (ITC), your net cost drops to approximately $12,180.Louisiana homeowners typically see a payback period of 9 years and save an estimated $26,000 over 25 years.
Solar costs in Louisiana have dropped approximately 40% over the past decade. Strong sunshine and improving policies continue to make solar more attractive.
Factors that affect your cost:
- System size: Larger systems cost more but have a lower cost per watt
- Equipment quality: Premium panels and inverters cost more but offer better efficiency
- Roof complexity: Steep roofs, multiple levels, or shading can increase installation costs
- Local labor rates: Installation costs vary by region within Louisiana
- Incentives: State and local programs can significantly reduce your out-of-pocket cost

Solar Incentives in Louisiana
Federal Solar Investment Tax Credit
30% Federal Tax Credit (ITC)
Louisiana homeowners can claim the 30% federal ITC to reduce their solar installation costs.
State & Local Incentives
Net Metering
Net MeteringLouisiana offers net metering for residential solar customers, allowing credits for excess generation.
Net Metering
Louisiana offers net metering through Entergy and other utilities. Recent policy changes have shifted credits from retail to avoided cost rates for new installations.
AvailableSRECs
Louisiana does not have an SREC market. The state previously offered a generous solar tax credit that has since expired.
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Top Solar Companies in Louisiana
Affordable Solar Roof & Air
Sunergy Solutions LLC
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Solar Alternatives, Inc.
PosiGen Developer, LLC
Solar Panel Cost FAQ - Louisiana
The cost of solar panels in Louisiana typically ranges from $2.50 to $3.50 per watt before incentives. For a standard 6 kW residential system, homeowners in Louisiana can expect to pay between $15,000 and $21,000 before the federal tax credit. After applying the 30% federal Investment Tax Credit, the net cost drops to approximately $10,500-$14,700. Actual costs vary based on your specific roof, chosen equipment, and installer. We recommend getting at least three quotes from local Louisiana solar installers to find the best price.
The average solar payback period in Louisiana depends on local electricity rates, available incentives, and sun exposure. Most Louisiana homeowners see a payback period between 6 and 10 years. After the payback period, you essentially enjoy free electricity for the remaining 15-20+ years of your system's life. Higher local electricity rates and additional state incentives can shorten the payback period significantly. A qualified Louisiana solar installer can calculate your specific payback period based on your energy usage and roof characteristics.
Louisiana homeowners who install solar panels typically save between $20,000 and $50,000 over 25 years, depending on system size, electricity rates, and available incentives. These savings come from reduced or eliminated electricity bills, net metering credits, and any applicable SREC income. As electricity rates in Louisiana continue to rise (historically averaging 2-3% annually), your savings grow each year. The combination of the 30% federal tax credit and any Louisiana-specific incentives helps maximize your return on investment.
The right solar system size for your Louisiana home depends on your electricity consumption, roof space, and budget. The average Louisiana home uses approximately 10,000-11,000 kWh per year, which typically requires a 6-8 kW solar system. To determine your ideal size, review your annual electricity usage on recent utility bills. Factors like Louisiana's average peak sun hours, your roof orientation, and any shading will affect how many panels you need. A professional Louisiana solar installer will use satellite imagery and your usage data to recommend the optimal system size.
Yes, solar is generally worth the investment for Louisiana homeowners in 2025. With solar panel costs at historic lows, the 30% federal tax credit still available, and electricity rates continuing to rise, the financial case for solar in Louisiana is strong. Most Louisiana homeowners who go solar see positive returns within 6-10 years, followed by 15-20+ years of significant savings. Additionally, solar panels increase your home value, provide energy independence, and protect against future electricity rate increases. The best way to determine if solar is right for your Louisiana home is to get a free, customized quote from a qualified local installer.
Solar Panel Costs by City in Louisiana
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