Pure labor for installing photovoltaic panels

The average labor cost for the installation is $0. Assumptions: region, system size, roof complexity, and permit. . The cost of a residential solar installation is a blend of physical hardware, the labor to install it, and a variety of administrative expenses known as soft costs. The. . Assemble, install, or maintain solar photovoltaic (PV) systems on roofs or other structures in compliance with site assessment and schematics. [pdf]