Wattsun Energy India Private Limited Chacka, Thiruvananthapuram, Kerala

Triple purification by RO + UV+UF.No chemicals used in purification.In – built TDS Controller that allows adjustment of TDS, Wall mounted design, best suited for Indian housing to prevent tampering.PP Filter (removes iron, rust or visible impurities), Pre- carbon filter(reduces chlorine, color & odour), UF (removes suspended solids and solutes of high molecular weight)

Solar water pumping system consists of PV array, solar pump inverter and water pump.Solar pump inverter with MPPT and varying frequency drive (VFD) will give maximum torque even at minimum sunlight. There is no need of any battery. Solar pump inverter directly drives the pump with high reliability.The DSP based control will track & extract maximum power from the solar panel so that motor will run at a constant torque for the wide range of intensity of sunlight – morning till evening.This will give 35% extra energy which results in pumping 35% more water compared with the conventional three phase inverter. At the same time, it can reduce system cost and maintenance costs.

Solar Power Conditioning unit (SPCU) is an integrated system that provides the facility to charge the battery bank through either a Solar or GridDG set.An SPCU (solar power conditioning unit) will consist of the following parts:PWM type:in this type the panels are directly connected to the battery through an electronic switch. The PV panels are considered as a current source and it delivers current at a voltage equal to the battery voltage plus the drop across the switching element. This is a very low cost charger. The main drawback here is that the SPV voltage is controlled by the battery voltage and because of this the PV panels don’t operate at its peak voltage and hence efficiency is less. For switching the panel to the battery either a combination of MOSFET and diode is used or a Zero drop type switching is used.