The Solar Dual Pump is an innovative pump devised to utilize the power of the sun during the day and act as a normal hand pump when the solar energy is not available, hence assuring uninterrupted water supply. The system consists of a submersible pump which runs on power generated from the photovoltaic solar cells and is suitable for use on bore wells with 100 mm (and above} diameter up to 80-90m depth. In practice a solar array is installed near the bore well. A submersible pump powered with DC motor is installed below the hand pump cylinder. The pump is connected to a storage tank and the collected water is dispensed through a stand post. This system can also be used on other water sources such as open wells or tanks. This is a 24*7 sustainable water supply solution for rural sector. The solar pumping system is very simple in design and easy to operate. Also needs no rigorous preventive maintenance. System is user friendly and can be operated by users with appropriate training. The solar pumping system is warranted and hence scope of maintenance during warranty period lies with the supplier.
