Solar Water Pump 2018-05-16T04:45:21+00:00

Solar Water Pumps

A solar-powered pump is a pump running on electricity generated by photovoltaic panels or the radiated thermal energy available from collected sunlight as opposed to grid electricity or diesel run water pumps.

How it Works

A solar-powered water pumping system is composed of a power source consisting of one or more PV (photovoltaic) panels. Solar cells are the building blocks for solar panels. Each solar cell has two or more specially prepared layers of semiconducting material (generally silicon) that produce direct current (DC) electricity when exposed to sunlight.

Flow Diagram

This current then flows to a control box which manages the power generated. Using a program called Maximum Power Point Tracking the control box can regulate the speed of the pump motor so it runs at best efficiency. It also protects the pump motor from over voltage or low power situations. It can also start and stop the pump based on input from sensors and at the same time displaying the systems status.

Whenever the sun shines the current turns the motor and the pump operates. If there is a requirement to run the pump for longer hours eg at night then a battery system must be included. This can store electricity during the day to run the pump later but it does require more solar panels to charge the battery.

In early systems the motor was driven by DC current through brushes (brushes needed to be replaced periodically). Today’s modern systems use high efficiency brushless motors which are driven by an alternating current produced by the control box.

Advantages

  • No need of utility
  • No Fuel Requirements
  • No need of Manual switch on/off
  • Timer based or Manual operations options are available
  • No need of maintenance

  • No need of wiring, trenching and cabling
  • Long lasting solution
  • Low Recurrent Cost
  • Can be installed very close to the actual application

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