Louisiana
Solar Permit Plans.
NEC 2020. Avoided Cost Exports.
Battery + Self-Consumption = Viable Solar.
Louisiana's LPSC General Order (2019) ended full retail net metering for new solar customers. Since January 1, 2020, exported solar earns the utility's avoided cost — approximately 2.7 cents per kilowatt-hour — while grid power costs approximately 12 cents. Louisiana's high AC load means most solar production during the workday exports rather than self-consumes. Battery storage closes that gap. Without it, Louisiana solar economics in 2026 are unfavorable.
Avoided Cost Exports. Hurricane Wind Loads. Battery Storage Is the Strategy That Makes Louisiana Solar Work.
Permit Design builds Louisiana solar permit plan sets for solar installers, EPCs, and roofing companies across all 64 parishes. Louisiana's electrical code is NEC 2020 under the Louisiana State Uniform Construction Code. Structural codes reference the 2015 IBC and 2015 IRC with Louisiana amendments. The Louisiana Public Service Commission governs distributed generation rules for investor-owned utilities statewide. LPSC General Order (Docket R-33929, September 2019) ended full retail net metering for customers interconnecting after December 31, 2019 — exported solar is now credited at the utility's avoided cost rather than the retail rate.
Two things define Louisiana solar economics in 2026. First: the avoided cost export rate — approximately 2.7 cents per kilowatt-hour for Entergy Louisiana and CLECO — means exported solar earns less than one-quarter of the retail rate. Louisiana's high air conditioning load and typical workday absence patterns mean much of a residential solar system's daytime production is exported rather than self-consumed. Second: battery storage changes the calculus. A battery captures daytime solar surplus, shifts it to evening consumption when the household is actually using power, and dramatically improves the self-consumption ratio. For coastal southeast Louisiana, hurricane-resistant racking is the third defining engineering constraint — Jefferson, Orleans, Lafourche, and Terrebonne parishes face ASCE 7 design wind speeds of 130 to 150+ mph.
Last updated: June 2026 · LPSC avoided cost rates, Entergy Louisiana interconnection requirements, and coastal ASCE 7 wind values confirmed as of June 2026.
New Louisiana Solar Customers Get ~2.7¢/kWh for Exports. Grid Power Costs ~12¢. The Gap Is 77%.
The LPSC's 2019 rule change is the defining policy fact for Louisiana solar in 2026. Understanding the pre- and post-2019 distinction — and what it means for sizing — is the foundation of every honest Louisiana solar proposal.
Louisiana's AC Load Profile Makes Battery Storage the Key to Viable Solar Economics
Louisiana's electricity consumption pattern is driven by air conditioning — summer peak loads are massive, and AC runs heavily from late morning through late evening. This profile creates a structural mismatch with rooftop solar production that battery storage resolves.
Entergy Louisiana Covers Most of the State. CLECO Has Strict Certification Requirements. LUS Charges a Solar Surcharge.
Louisiana has several distinct utility territories, each with its own interconnection process, avoided cost rate, and installer requirements. Confirming the utility before quoting a project is essential.
| Utility | Territory | Export Rate | Key Notes |
|---|---|---|---|
| Entergy Louisiana | Baton Rouge, Shreveport, Lake Charles, Alexandria, New Iberia, most rural parishes | ~2.7¢/kWh avoided cost | LPSC regulated; largest LA utility; 2026 avoided cost rate published by LPSC annually; dual-register or smart meter required |
| Entergy New Orleans | Orleans Parish (City of New Orleans) | Retail for grandfathered; avoided cost for new | Regulated by New Orleans City Council (NOT LPSC); own interconnection rules; 25 kW residential cap; 90-day advance notice required |
| CLECO Power | Central Louisiana — Alexandria, Pineville, Natchitoches, Leesville, Opelousas | ~2.7¢/kWh avoided cost | CLECO-certified installer required; dual register or smart meter required; strict paperwork review; certification obtained directly from CLECO |
| LUS (Lafayette) | Lafayette Parish municipal territory | ~2.7¢/kWh avoided cost | Solar surcharge: ~$14–$15.40/month (Rate C1NMO) — customers pay elevated monthly fee for the privilege of having solar; economics are materially worse than Entergy territory |
| SWEPCO | Northwest Louisiana corner (Shreveport area shared with Entergy) | ~2.7¢/kWh avoided cost | LPSC regulated; same avoided cost structure as Entergy; verify address for SWEPCO vs Entergy territory in Shreveport metro |
Louisiana Solar Permit Plan Set Contents
Every Louisiana plan set references NEC 2020 under the Louisiana SUCC, 2015 IBC or IRC structural codes, parish-confirmed ASCE 7 hurricane wind values, and Entergy Louisiana or CLECO interconnection documentation with the 2026 avoided cost rate noted.
Also doing commercial rooftop or ground-mount in Louisiana?
Louisiana commercial solar packages reference 2015 IBC with Louisiana amendments, NEC 2020 Article 690, and Entergy Louisiana or CLECO interconnection documentation. Commercial systems up to 300 kW are eligible for net metering under LPSC rules. ASCE 7 parish-specific hurricane wind values applied — coastal commercial rooftop projects require the most demanding racking attachment engineering in the continental US. Third-party ownership structures (PPAs, leases) may allow commercial system owners to claim the Section 48E investment tax credit. Scope and turnaround quoted per project.
How Louisiana Solar Permit Plan Sets Work
Submit Your Louisiana Project
Give us the parish and address. We confirm which utility serves the project — Entergy Louisiana, Entergy New Orleans, CLECO, LUS, or SWEPCO — verify CLECO certification requirements where applicable, identify the local AHJ, and pull ASCE 7 hurricane wind speed and exposure category for the parish.
Built to NEC 2020 + Parish Wind Loads
NEC 2020 Article 690 per Louisiana SUCC. 2015 IRC or IBC structural with parish ASCE 7 hurricane wind values — coastal southeast parishes receive their own confirmed high-wind design engineering. Louisiana-licensed PE stamp. Entergy Louisiana or CLECO interconnection documentation with 2026 avoided cost rate noted.
Delivered in 24–48 Hours
The complete 7-sheet Louisiana package ships in 24–48 hours. Avoided cost rate, billing type, and battery storage self-consumption strategy noted throughout. CLECO certification requirement flagged for CLECO territory. Free revisions until the Louisiana AHJ approves.
Try Us on Your First Louisiana Project. Free.
New to Permit Design? Submit your first Louisiana residential project and we will build the complete 7-sheet package at no charge — NEC 2020 under the Louisiana SUCC, 2015 IRC structural with parish-confirmed ASCE 7 hurricane wind values, and Entergy Louisiana or CLECO interconnection documentation with the current avoided cost rate noted.
⚠️ For licensed solar installers, EPCs, and roofing companies only. Individual homeowners and residential end customers are not eligible. One free residential plan set per company.
Louisiana Solar Permit Design — Frequently Asked Questions
Louisiana Solar by the Numbers
Top 3 Reasons Louisiana Solar Permits and Interconnection Applications Get Rejected
Three issues generate most Louisiana plan set and interconnection application rejections across the state's 64 parishes.
The Permit Design Commitment
What every Louisiana installer, EPC, and roofing partner receives from Permit Design on every project.
Louisiana Solar Permits —
Avoided Cost Honest. Hurricane-Rated. NEC 2020.
NEC 2020 · 2015 IBC + IRC · Entergy + CLECO + ENO
~2.7¢/kWh Avoided Cost · 64 Parishes · 24–48 Hours