A solar pump is an application of photovoltaic technology which converts solar energy into electricity to run motor and pump. The motor powered by solar energy draws water out of the bore well, river, lake or pond.
Solar Water Pump Working Procedure
The photovoltaic cells in solar modules convert sunlight
into Direct Current (DC) electrical energy. This DC energy is then fed to the
Motor Pump Set via Pump Controller in case of DC pump or via Variable Frequency
Drive (VFD) in case of AC pumps (VFD controls speed of Motor). The Pumping
system is a combination of an impeller and a motor; the impeller propels water
movement and the motor drives the pump. The water is propelled out of the bore
well/river/lake/pond through the pipe so that water can then be fed to the
fields for irrigation and other purposes. Water output varies during the day
depending upon varying solar irradiance.
1.
No dependence on erratic grid power and saving on expensive
diesel
2.
Higher yield during the day time when crop gets all the necessary
ingredients- sunlight and water
3.
Water output across all seasons to cultivate multiple crops every year
3.
One time investment and then zero running costs (free sunlight) for
many years to come
4.
Easy for farmers to cultivate the land during day time rather than at
night time when grid is erratic
5.
Drip and sprinkler systems can be connected with the solar system to
further improve crop yield
6.
Solar system needs no maintenance except regular cleaning of the
modules - no consumables; easy to operate
7.
As water can be harnessed any time of the day, the user can plan his
other activities independently
8.
Contribution to reduction of carbon emission and pollution