How do I choose a solar inverter?

Consider the volume of water you need to pump daily. This affects the size of both the pump and the solar array, influencing the inverter selection. Higher water demands may require a more powerful pump and, consequently, a larger inverter.

How do you design a solar water pumping system?

When designing a solar pumping system, the designer must match the individual components together. A solar water pumping system consists of three major components: the solar array, pump controller and electric water pump (motor and pump) as shown in Figure 1.

How to choose a solar pump inverter?

Understand the rated power of the water pump. Normally, the rated power of the solar pump inverter should be slightly more than or equal to the rated power of the water pump to ensure that the pump can be operated normally. For instance, if the water pump's rated power is 2kW, the selected inverter should have a rated power of 2kW or higher.

How to choose a solar water pumping system?

The type of solar water pumping system: borehole/well (submerged), floating or surface will depend on the water source. If the source is a borehole (proposed or existing) or deep well, then a submersible pump that fits the borehole or well should be selected. If the water source is a river, then a surface pump should usually be selected.

How much power does a solar inverter need?

In this example, you would need an inverter capable of handling at least 4.55 kW to adequately power your solar pump system, accounting for current needs, inefficiencies, and potential future expansion.

How much water does a solar water pump need per day?

The required daily volume of water required is: 45 x 200 = 9000 litres or 9 m3 (2378 US gallons) This data is used by the designer to select a solar water pumping system that will provide this volume of water per day.