The green roof plan of a switchgear room refers to a detailed layout of the green roof design for a building that houses electrical switchgear. This plan typically includes the arrangement of plants, drainage systems, irrigation, and structural components necessary for the successful establishment and maintenance of a green roof on top of the switchgear room. The green roof not only serves an aesthetic purpose but also provides environmental benefits such as improved energy efficiency, reduced stormwater runoff, and enhanced air quality.