Solar cell efficiency in English
240KW/400KW industrial rooftop - commercial rooftop - home rooftop, solar power generation system.
There are also certain minimum values of area encouraged for the different cell types, although some discretion is exercised here (0.05 cm2 for a concentrator cell, 0.25 cm2 for a tendem cell, 1 cm2 for a 1-sun cell and 800 cm2 for a module).