The general construction permit is issued to a NYC licensed General Contractor. Only the above licensees — or the employees they supervise — may work on these systems. The Department of Buildings issues licenses to Skilled Tradespeople who are qualified to perform work related to. Contracts are the most common form of contract used to undertake construction works on utility-scale solar projects by the private sector. If you're unfamiliar with its nuances, don't worry – we're here to break down everything you need to know. Gadzanku, Sika, Alexandra Kramer, and Brittany L. An Updated Review of the Solar PV Installation Workforce Literature. Golden, CO: National Renewable Energy. This document has been published with the support of Andy Walker, Otto VanGeet, Tom Harris and Chandra Shah of the National Renewable Energy Laboratory (NREL).