The NEC permits photovoltaic (PV) systems to supply power to buildings, structures, or other electrical supply system(s). PV systems can be installed on or in a single structure. Where multiple power ...

Article 690 covers solar installations, except large-scale ones (those are covered in Article 691) [Sec. 690.1], as shown in Fig. 1. There are three important definitions: “Photovoltaic (PV) system” ...