15th July 2021
A solar pumping system consists of several components. A solar water pump is a vital organ of a solar pumping system. The efficiency of your system depends largely on the performance of the solar pump. An efficient solar pump can help you exploit solar power to its maximum.
What does a solar water pump do?
A solar pump system is an eco-friendly alternative to traditional pump systems. It uses solar power for its operation. It has a motor that utilizes solar electricity to pump water.
Solar pumps are of two types based on the type of motor present in them:
● DC solar pump- does not have an inverter
● AC solar pump- has an inverter that changes solar electricity from DC to AC
Which one to choose?
pump has its own merits and demerits. While a DC solar pump is generally used in low power capacity (around 5kW),
one should consider other factors also while choosing a solar pump:
A DC solar pump is more efficient as it
gives maximum output with fewer solar panels. AC solar pumps need more solar
panels as the electricity has to be converted into AC for utilization. As a
result, the efficiency of the system is reduced in the latter's case.
DC pumps are quite silent because of the BLDC motor technology used in their engineering. It helps to reduce mechanical noise significantly. On the other hand, AC solar pumps are rather obsolete and use the old motor technology. It might also cause it to become noisy over time.
A DC solar
pump is difficult to maintain. It requires specialized personnel to service it.
This scope of limited service and complicated engineering causes a significant
increase in its cost. AC solar pumps can be easily handled in case of
4. Service life:
DC solar pumps have motors with copper coils in them. Copper is seen to be more durable, thereby increasing the life of the pumping system. AC solar pumps, on the other hand, have solar motor coils made up of aluminum, making them prone to deterioration. Consequently, they require service more often as compared to DC pumps.
Assessing the above parameters, we can conclude that a DC pump is a better choice when it comes to efficient solar pumping systems.
DC solar pumping system
A DC solar pumping system comprises solar panels, a solar pump controller, and the DC pump. The controller is an integral part of the solar motor pump. It has a display that shows real-time measurements for power, voltage, speed, and current consumption. A controller performs the following functions in a pumping system:
● It starts and stops the pump automatically at a gradual speed.
● It helps to avoid short-circuiting, overheating, and voltage fluctuation.
● It regulates the DC input voltage to attain maximum power point tracking.
These are the functions why a DC pump is considered more efficient in a solar pumping system. You can assess your water requirement and choose a DC pump accordingly.
Waaree offers solar pumps that help in saving electricity costs. Check out Waaree Solar Water Pump and get one today.