How long is solar payback in Louisiana?

Solar payback in Louisiana typically runs 7–12 years depending on your electricity rate, system size, sun hours, and whether you qualify for the federal 30% Investment Tax Credit plus any Louisiana state incentives. Use the calculator above for a personalized estimate.

What solar incentives are available in Louisiana in 2026?

All Louisiana homeowners qualify for the federal 30% Solar Investment Tax Credit (ITC) on the gross system cost. Louisiana may also offer a state tax credit, rebates from your utility, or favorable net metering. See the calculator inputs above for Louisiana-specific values.

Is net metering available in Louisiana?

Net metering rules vary by state and utility. Louisiana has its own rules — full retail credit, time-of-use rates, or buyback programs. The calculator above factors in Louisiana's effective net metering value when estimating your monthly bill offset.

How many sun hours does Louisiana get?

Louisiana's average peak sun hours per day (NREL TMY3 data) determines how much solar your system can generate. The calculator above uses Louisiana-specific irradiance to size the system from your monthly electricity bill.

Should I buy solar panels or lease them in Louisiana?

Buying outright (cash or loan) lets you claim the 30% federal ITC and any Louisiana state credit, and you own the energy. Leasing or PPAs let the installer take the credit but you avoid upfront cost. For long-term value in Louisiana, ownership almost always wins.

Solar Payback in Louisiana (2026) — Federal 30% Calculator

Louisiana has excellent sun (4.9 peak hours) but extremely cheap electricity ($0.115/kWh). Net metering ended in 2019 — now value-of-solar compensation. State solar tax credit expired in 2015. Federal 30% ITC is sole driver. Slow 14-16 year payback.

Use the calculator below — your state is already selected. Adjust your monthly electric bill and system cost for a Louisiana-specific payback estimate.

Solar Payback Calculator (by State)

Estimate your system size, total cost after incentives, and break-even year for residential solar.

State

Monthly electric bill Average across the year. Used to size the system.

Your electricity rate ($/kWh) Auto-filled from state average. Override with your real rate from your utility bill.

System cost ($/Watt) 2024 national avg ~$2.85/W gross, before incentives. Quotes range $2.50-3.50.

Financing

Utility rate inflation (% / yr) US average ~2.8% over last 25 years. EIA forecasts ~3% through 2050.

Estimated payback period

—

Select your state to get a precise estimate.

System size

—

25-year savings

—

Net cost after credits

—

Year-1 savings

—

Cost breakdown

Net out-of-pocket

Get free solar quotes from local installers

Estimates only. Real solar quotes depend on your roof, shading, local installer pricing, utility net-metering policy, and your specific tax situation for the federal credit. Not financial advice.

Cumulative savings vs. system cost

When the green line crosses the dashed cost line, you’ve broken even.

Louisiana solar specifics

1. Federal 30% ITC

Standard 30% federal Investment Tax Credit applies to gross system cost. Through 2032.

2. State and utility programs

Louisiana phased out 1-to-1 net metering in 2019 and the state solar tax credit ended in 2015. Federal credit only.

2026 Louisiana solar economics

Typical 7 kW system: gross ~$19,600; net of 30% ITC ~$13,720. Annual production ~10,641 kWh. Annual savings at $0.12/kWh: ~$1,040. Payback typically 8-12 years.

How to use the Louisiana solar calculator above

The state is pre-selected. Adjust if needed.
Enter your typical monthly electric bill (averaged across the year).
The calculator auto-fills your state's average electricity rate and peak sun hours — override the electricity rate with your real $/kWh from your bill if you know it.
Adjust the system cost per watt based on quotes from local installers. Louisiana averages are typically within the $2.50–$3.50/W range for cash installs.
The output shows estimated system size, net cost after federal and state credits, year-1 savings, and 25-year cumulative savings.

Reviewed by the CalcCottage editorial team. Updated May 14, 2026. Estimates only — not financial advice. Verify current incentives at DSIRE.org before installing.

Solar Payback in Louisiana: 2026 State-Specific Math