Method for cleaning photovoltaic module and cleaning apparatus

摘要

A photovoltaic module (1) to be cleaned has a laminate that includes a first electrode layer formed on an insulating substrate, a photovoltaic semiconductor layer, and a second electrode layer. The photovoltaic module (1) is divided between a power generating region and peripheral regions by means of grooves that are formed by laser scribing. The power generating region is divided into a plurality of photovoltaic cells by means of laser-scribed grooves. At least some of the photovoltaic cells are connected electrically in series with one another. A cleaning apparatus (11A) for cleaning the photovoltaic module (1) comprises a reserver tank (12) containing a cleaning fluid (W), a conveyor (15) for moving the module (1) in a manner such that the module (1) is immersed in the cleaning fluid (W), and an ultrasonic vibrator (17) for applying ultrasonic vibration to the cleaning fluid (W). <IMAGE>