A greenhouse cooling system is used to decrease the accumulated heat energy from inside to outside the greenhouse by various techniques such as ventilation (natural and forced), shading/reflection, evaporative cooling (fan-pad system, mist/fog and roof cooling). Subsequently, a PV hybrid system for cooling a tropical greenhouse has been investigated in Selangor, Malaysia [69].
This system included 48 solar PV Panels with 18.75 W for each, one inverter, 1 charge controller and a battery bank (including 12 batteries).
The load consisted of two misting fans for cooling a greenhouse with 400 W electric power at a five hours daily operation.