Solar Water Pump powered by solar photovoltaic modules, and a pump inverter.

Solar water pumps are stand-alone systems. A solar pump uses power derived from sunlight that is converted into electrical power (DC) by Solar Photo Voltaic (SPV) modules, DC power which is feed to the pump inverter to convert DC power to AC power. This AC power will drive the centrifugal mono-block / submersible pumps set for lifting water from bore wells, open wells or reservoirs which give higher power output in the afternoons and lower power output in the mornings and evenings. As a result, a solar pump works on varying power input and gives varying water output at a given pump head. The system is fitted with auto start and stop with no user intervention. The whole system is simple and robust and is absolutely maintenance free for years. And best of all it can be operated everywhere no matter how far you are from the grid because sun is available almost everywhere free of cost.

Dual Mode Unit – this option enables the user to run the same pump with either solar power or grid power, whichever is available.

The most important parameters to select a solar pump are: how much daily water is needed, at what pump head, and at which location. The location is important because solar energy varies from region to region, and sizing of solar panels depends on the solar energy of a region.