Louisiana solar installation: a Solar Energy Equipment license is required at a project value of $10,000 or more (§ 2156.3), and it rides one of the base classifications — Building Construction, Electrical, Mechanical, or Residential Construction; a Mechanical license is required for solar-thermal piping at $10,000 or more. Leasing and financing arrangers are not exempt; homeowners and financiers bear no liability under the section. Every claim sourced and dated.
Solar Energy Equipment license ≥ $10,000 (§ 2156.3) — § 2156.3(A) verbatim: 'A Solar Energy Equipment license shall be required to install solar energy equipment or solar energy systems for which the project value is ten thousand dollars or more.' § 2156.3(B): the applicant must hold one or more of Building Construction, Electrical, Mechanical, or Residential Construction. § 2156.3(D): 'A Mechanical license is required to connect piping or equipment for any solar thermal system for which the project [value is ten thousand dollars or more].' Leasing/financing arrangers 'shall not be exempt from the provisions of this Section.' S-LA-BLUE-BOOK
License thresholds by classification (rule default $50,000; residential family lower) — Rule §301.F verbatim: 'A license is required when the project cost exceeds $50,000 except where otherwise noted.' Otherwise noted: Electrical, Mechanical and Plumbing — 'A license is required when the value exceeds $10,000' (rules §301.14, §301.38, §301.47; Hazardous Materials work > $1 with LDEQ credentialing, §301.21); Residential Construction — 'the construction of a residential structure … when the cost of the undertaking exceeds $75,000' (§301.50); Home Improvement — 'A license is required when the value exceeds $7,500. Home improvement is limited to a value of $75,000' (§301.26); Residential Swimming Pools > $7,500 (§301.51); Mold Remediation > $7,500 with 24 hours of board-approved training (§301.39); Solar Energy Equipment ≥ $10,000 (§ 2156.3). FAQ: thresholds include labor AND materials; 'A Commercial license does not allow you to build a single residential home.' S-LA-BLUE-BOOK
Amounts are statutory caps (§ 2156.C) — the board's current actual fees and all parish/municipal permit fees (LOCAL_AUTHORITY_REQUIRED) are not published here.