State Guide
Solar Panel Cost in Louisiana (2026)
See how much solar panels cost in Louisiana with local electricity rates, incentives, and payback estimates.
Last updated: 2026-06-09· Source label: EIA residential electricity rates, IRS federal clean energy credit, NREL/PVWatts solar assumptions
Louisiana sits on the hurricane-prone Gulf Coast, where Entergy Louisiana provides power to most residential customers, followed by Cleco Power in central parishes and SWEPCO around the Shreveport area. The state's residential rate averages $0.14/kWh per latest EIA data — right at the national figure — which means solar savings come primarily from offsetting heavy summer air-conditioning load rather than escaping a high per-kWh price. Louisiana's 50% state tax credit (verify current cap at dsireusa.org) is now closed to new applicants, and full retail net metering remains available but faces ongoing legislative review. Homeowners in hurricane zones should model battery storage and storm-hardened mounting costs separately; the calculator's planning payback of 7–9 years reflects solar-only economics at $2.55/W installed cost and does not include resilience upgrades.
Texas Solar Calculator
Estimates based on louisiana state averages. Your actual cost depends on roof, equipment, installer, and financing.
Incentives & Rebates
Federal Residential Credit Caveat
For projects where IRS project-year rules support a residential credit, a 30% credit would be roughly $6,885 on a $22,950 system. For 2026+ residential projects, RenewableCalc keeps this at 0% unless current IRS guidance supports eligibility.
State and Utility Incentive Context
Louisiana: State tax credit of 50% (verify current cap at dsireusa.org) is phased out for new applicants as of 2026. Full retail net metering remains available through Entergy Louisiana, Cleco Power, and SWEPCO, though legislative review continues. Verify current program status with your specific utility and DSIRE before assuming any credit in a quote.
Net Metering
Louisiana retains full retail net metering as of 2026, though the Public Service Commission continues to review export credit policy. Entergy Louisiana, Cleco Power, and SWEPCO each administer net metering under their own tariffs — credit rates vary by territory. Confirm your utility's current rollover rules, system-size caps, and whether monthly or annual true-up applies before sizing a system around exported kilowatt-hours.
Top Electric Utilities
- 1. Entergy Louisiana
- 2. Cleco Power
- 3. SWEPCO
Source: EIA-861, by customer count
Recommended next steps
Calculate your ROI
Use Solar Panel Cost in Louisiana (2026) defaults with pre-filled state data.
Review an installer quote
Validate price per watt, system size, and financing terms.
Compare ownership models
Buy vs Lease vs PPA — see which fits your situation.
Refine your estimate
Use the Solar ROI Calculator with your Louisiana utility rate, annual kWh usage, and quote assumptions.
Frequently Asked Questions
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Show my solar path →Overview
Louisiana sits on the hurricane-prone Gulf Coast, where Entergy Louisiana provides power to most residential customers, followed by Cleco Power in central parishes and SWEPCO around the Shreveport area. The state's residential rate averages $0.14/kWh per latest EIA data — right at the national figure — which means solar savings come primarily from offsetting heavy summer air-conditioning load rather than escaping a high per-kWh price. Louisiana's 50% state tax credit (verify current cap at dsireusa.org) is now closed to new applicants, and full retail net metering remains available but faces ongoing legislative review. Homeowners in hurricane zones should model battery storage and storm-hardened mounting costs separately; the calculator's planning payback of 7–9 years reflects solar-only economics at $2.55/W installed cost and does not include resilience upgrades.
Use this result
Use the calculator inputs first, then compare the result against local rates, incentives, roof conditions, and utility export rules.
Method, assumptions, and sourcesOpen this section when you want to audit the calculation behind the estimate.ShowHide
Calculation Method
Louisiana solar payback = net installed cost after incentives / annual avoided electricity cost plus export credits
Key Assumptions
- Policy last reviewed: 2026-06-09. Federal residential credit assumptions are project-year dependent and not applied by default for 2026+ projects.
- Residential rate and installed-cost figures are planning benchmarks, not a final utility bill audit or installer quote.
- The model assumes a roof with usable sun exposure; shading, roof age, electrical upgrades, permitting, and financing can materially change cost.
- Louisiana economics should be checked against Gulf Coast heat and humidity, utility-specific export credits, and storm resilience considerations.
- The federal tax credit only helps households with sufficient tax liability and qualifying project documentation.
Data Sources
Electricity rates
EIA Electric Power Monthly
Residential electricity-rate benchmark used for avoided-bill savings.
Solar production
NREL PVWatts
Solar production assumptions should be checked against local roof orientation, shading, and climate.
Federal incentive
IRS Residential Clean Energy Credit
Supports 2026 Section 25D expiration (residential ITC no longer available by default) for qualifying residential solar costs.
State and utility policy
DSIRE and local utility tariff pages
Used as a reminder to verify state incentives, net-metering, export-credit, and rebate rules before relying on an estimate.
Result Summary
Net cost before federal residential credit
~$22,950
Uses Louisiana's $2.55/W installed-cost default and no statewide cash incentive default; no 2026+ federal residential credit is applied by default.
Estimated payback
7-9 years
Depends on actual utility rate, Full retail net metering, installed cost, roof production, financing, and incentive eligibility.
Annual bill offset
$1,200-$1,600/yr
Estimate based on a 9.0 kW system, 5.0 peak sun hours/day, $0.14/kWh, and PVWatts-style production before fixed charges or export-credit adjustments.
Formula Assumptions Data Sources FAQ Related Links
Compare Solar Costs With Neighboring States
Solar economics vary by state. Compare Louisiana with nearby states to see how electricity rates, incentives, and payback periods differ in your region.