Solar Power Pump

A solar power pump comprises of the following 4 parts:

• Fluid pump

This basically pumps liquids and gases upwards under extreme pressure.

• Controller

It adjusts the speed and the output power depending on the input from solar panels.

• Engine

This refers to an electric motor.

• Photovoltaic cells or solar panels

These are the energy sources that are actually powered by the sun. These take up approximately 50%-80% of the whole setup cost and are the most expensive parts.

Maximum efficiency of the solar power pump can be achieved by the following ways:

1. Initiating the pump

Just like any other water pump even the solar powered pump may not perform well if it is pumping out air. To make the pump ready for use it must be placed in water so that any unwanted air in its intake is displaced by water. This takes time but is a necessary process. This needs to be done each time the pump is being used after a long gap.

2. Ensuring that the water is free from debris

The solar power pump has a filter to prevent the dust and debris from passing through it. However purer water enables efficient pumping. Even tap water that looks pure may have minerals that may reduce the pump’s efficiency. Distilled water can be used but it is expensive.

A solar power pump is a great alternative in areas where the grid connection is either expensive or impossible. They are low in maintenance and do not need expensive and hazardous fuels for their functioning.

A solar panel powers the pump and eliminates the need for an inverter. The pump can function for 5 to 6 hours in full power on sunny days and at a lower volume on days that are cloudy and overcast.

Certain advantages of the solar power pump are:

• It needs very little maintenance.

• No external fuel needed for the generators.

• They are environmentally friendly.

• It is highly efficient.

• They have high life expectancy and can last twice as long as the AC pumps.

• Once the system is paid for the water from it is absolutely free.

• It can be installed in very remote areas, which seem uninhabitable and arid.

• They do not need to be monitored or operated manually.

Urban solar power pump applications include waterfalls, swimming pools, fountains and even ponds. These pumps are also used to provide water to elevated water towers found in cities. These towers store water for emergencies like droughts or during a contaminated water supply by municipality.

To conclude, the size of the solar power pump and that of the solar panel should match so as to ensure adequate power supply to the pump. A charge controller should be installed so as to prevent damage to the pump.

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