A clean and reliable water supply is an important necessity of all human beings, but even today numerous people lack this basic provision. Solar water pumps are environmental, economically and socially attractive technology for supplying water, particularly in remote areas which lack electric power supply.
In remote areas of India, people depend on the animal, human or diesel power for their daily water supply. In such cases, solar water pumps can serve as reliable alternatives and generate economic, climate-related and social benefits. For, the water thus supplied can be used water irrigating crops, watering livestock, and providing potable drinking water. You can buy solar water pump products online store.
The system of solar water pumps
Solar water pumps electrically operating systems where the electric power is generated by one or more solar panels. The system pumps water from the stream or ground into a storage tank which offers a gravity feed, eliminating the necessity of energy for storage.
Types of solar water pumps
Solar water pumps are of two types viz., the centrifugal pump and the positive displacement pump.
The centrifugal pump sucks water in through the center of the pump using high speed rotation. Most conventional AC (Alternating Current) pumps use such a centrifugal impeller. However, these are not much suitable solar applications as their performance drop drastically when operating at low power.
The positive displacement pump, transfers water using a piston. Often solar water pumps use these pumps to pump water into a chamber, which is then forced out with the help of a helical screw or piston. Though these pumps are slower than their counterparts, they perform well under low power conditions.
Two types of pumps
There are again two types of pumps viz., the surface pumps and the submersible pumps. The suitability of these pumps to various places depends on the source of water. If the water source is a well, the pump has to be present underwater. If the water source is a lake, the pump has to be placed at the side or on top of the water. So, in the former case submersible pumps and in the latter surface pumps are used. Submersible pumps are costlier than surface pumps. However, submersible pumps can only draw water from some 6.5 vertical meters, while their counterparts can push water over long distances. You can buy solar water pump products online store.
Advantages of solar water pumps
No fuel spills.
No fuel expenses.
Low maintenance.
Subsidy schemes by the government.
Independent of the grid.
Easy to install.
System can be adjusted to be mobile.
Easy maintenance and long life.
Facilitates unattended operation.
Highly durable and reliable.
Disadvantages of solar water pumps
Mandatorily requires sunshine from 9 am to 3 pm.
Lower power generation and thus lower water supply in cloudy weather.
High initial expenses.
Conclusion
In our county, as per statistics 21 million irrigation pump sets are currently being used. Of these, 12 million rely on electricity and 9 million on diesel for their operation. The power related expenses pose a major problem for the farmers. Switching to solar water pumping systems is therefore a good idea.