A solar facade is also a weather enclosure

A fictional facade replacement adds photovoltaic cladding where earlier panels served only as external weather protection. A team compares module power ratings but has not coordinated the rail loads, drainage openings, electrical routes, fire interfaces or access for replacing a failed panel. A manager believes turning off the building’s AC switch will make every roof and facade cable safe during installation. This written review energizes no circuit and performs no physical work. Identify the functions that must be coordinated and why a power rating cannot establish annual yield or a complete safe enclosure. Distinguish a conceptual understanding of PV behavior from the competence and authority needed for actual electrical isolation and commissioning.