How Much Do Solar Panels Cost in Louisiana? (2026)

Solar panels in Louisiana cost about $2.31 per watt installed in 2026. For the state's average 12.84 kW system, that is about $29,700 before incentives, with most quotes falling between roughly $25,200 and $34,200 (EnergySage, October 2026). On our Solar Break-Even Map, that works out to a simple payback of about 11.2 years, a little longer than the 10.7-year national median. There is no federal residential tax credit and no state tax credit in 2026, so few incentives will reduce that price.

We'll be straight with you: Louisiana is a tougher solar market than the hype suggests. The sun is good and install costs are below the national average, but state incentives are thin, net-metering credits have been reduced, and electricity here is relatively cheap — which means less to save. That payback figure assumes every kWh your panels make replaces power at the average retail rate. Power you export is credited at a lower rate, so if you export a lot, expect a longer payback.

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How Much Do Solar Panels Cost in Louisiana?

The Louisiana average is $2.31 per watt installed, before incentives (EnergySage, October 2026). Here is what that rate means at common system sizes:

• 6 kW system: ~$13,900
• 8 kW system: ~$18,500
• 10 kW system: ~$23,100
• 12.84 kW system (Louisiana average): ~$29,700 (typical range ~$25,200–$34,200)

The 6, 8 and 10 kW figures are our own math (size × the $2.31/W state average). Your quote can land above or below this. See our 2026 cost breakdown for what goes into that price.

What drives your cost in Louisiana

Your quote depends on system size, roof type and condition, equipment tier, and whether you add storage. With cheaper grid power and lower export credits, sizing the system to match your own usage (rather than overbuilding to export) usually makes the most financial sense here.

Net Metering in Louisiana — What Changed

Louisiana used to offer full retail net metering, but the state moved away from it. New residential solar customers are now generally credited for exported power at a lower avoided-cost rate rather than the full retail rate. Practically, that means the power you use yourself is worth much more than the power you export — so right-sizing your system, shifting usage to daytime, and considering a battery matter more than they would under full retail net metering.

Major Louisiana Utilities

The largest utility is Entergy Louisiana, alongside Cleco, SWEPCO (northwest LA), and several co-ops and municipal systems. Net-metering and interconnection terms are set under state rules and can vary by utility, so confirm the current export-credit rate for your specific provider before you buy.

Louisiana Solar Incentives in 2026

No state tax credit

Louisiana once had one of the most generous state solar tax credits in the country, but it ended years ago. There is no active state income-tax credit for residential solar in 2026 — be cautious of any installer or old article implying otherwise.

Limited local programs

Incentives are sparse. A few utilities or parishes may offer minor programs, and standard interconnection applies, but there's no broad state rebate to count on. Verify anything specific before assuming it's available.

No federal residential credit in 2026

The 30% federal residential credit expired December 31, 2025. A federal benefit still flows through leases and PPAs (commercial 48E). See our 2026 incentives guide.

Is Solar Worth It in Louisiana?

Honestly — it depends, and more so here than in top solar states. On a simple cash model, Louisiana solar pays back in about 11 years. That model assumes every kWh offsets power at the average residential rate. Because exported power earns a lower avoided-cost credit, homes that export a lot will take longer. Solar makes the most sense in Louisiana if you have high electricity usage (big summer cooling load), a good south-facing roof, and you plan to stay in the home long-term — and especially if you self-consume most of your production. If those don't describe you, the math may not work yet. A custom quote will tell you honestly. See also Is Solar Worth It in 2026?

Frequently Asked Questions

How much do solar panels cost in Louisiana in 2026?
About $2.31 per watt installed, according to EnergySage's October 2026 Louisiana data. For the state's average 12.84 kW system that is about $29,700 before incentives, with most quotes between roughly $25,200 and $34,200.

Does Louisiana have net metering?
Not full retail. New customers are generally credited at a lower avoided-cost rate for exports.

Does Louisiana have a state solar tax credit?
No — the old state credit ended years ago; there's no active state credit in 2026.

Should I add a battery in Louisiana?
Often worth considering, since self-consumed power is worth more than low-rate exports — and it adds storm backup.

Is solar worth it in Louisiana?
Sometimes. Louisiana solar pays back in about 11 years on a simple cash model that assumes every kWh offsets power at the average residential rate. Homes that export a lot of power will take longer, because exports are credited at a lower rate. It works best for high-usage homes with good roofs that plan to stay long-term.

Sources

LA costs: EnergySage (October 2026). Payback and break-even rate: Solar Energy Nerds Solar Break-Even Map (NLR PVWatts, EIA, EnergySage). Net metering / avoided-cost change & expired state credit: DSIRE (Louisiana), Louisiana Public Service Commission. Utilities: Entergy Louisiana, Cleco, SWEPCO. Federal credit expiration: IRS OBBB FAQ.

See how Louisiana compares nationwide: our Net Metering by State (2026) guide covers how every state's utility credits solar exports.