As evident from the name itself, Solar Water Pumping Solutions run on the solar power to pump water from the ground or some bore well/well or some pond.
These Solar Water Pumps are highly economical, completely environmentally friendly and broadly maintenance free, as they utilize solar power to operate and run the pump rather than being dependent on conventionally generated power like from coal or diesel.
The system works on electricity generated by PV(Photovoltaic) arrays which convert solar energy into electrical energy which runs the pump to draw water. The Photovoltaic array of solar cells is mounted on a structure facing the Sun, above the ground. These solar cells collect the radiant heat of the sun and convert it into electricity.
These Solar Pumps directly utilize the power generated by the PV Solar cells. They don’t have any inverter or battery in their system and therefore are the most economical solution in Solar water pumping solutions.
The AC Solar Pumps work on AC and require an inverter in the system to convert the DC generated by the solar cells into AC before being fed to the pump. These solar pumps require AC motors rather than DC motors.
These Solar Pumps usually work with AC motors and are used to draw water from deep drilled bore wells. These may utilize a battery in case the submersible pump is required to be operated during off Sun-shine hours also.
In case the pump has to be operated on a DC motor then the system doesn’t require any inverter in it. In such systems the pump keeps on drawing water throughout the day, which is generally stored in some water tank and later used as per convenience.
The surface Solar Pumps are meant for areas where the water is shallow and easily available. Such pumps are intended to draw water from a maximum depth of 20ft. Otherwise these solar pumps are best used where the water is to be drawn from running streams, ponds, water tanks and small water reservoirs. These solar pumps could be DC as well as AC depending upon the application.