Recommended solar water pump selection

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 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.

Should you choose a solar water pump based on data sheets?

First of all, compared to traditional pumping systems, it’s not as straightforward to select a pump based on data sheets when you’re operating with solar water pumping systems. This is because the day profile is based on the sun – and as we all know, there are more hours of sun during the summer than during the winter.

What are the components of a solar water pumping system?

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. Note: Motor and pump are typically directly connected by one shaft and viewed as one unit, however occasionally belts or gears may be used to interconnect the two shafts.

What size water pipe should a solar water pumping system use?

The designer should initially use pipe that is the same size as the inlets and outlets. The designer then undertakes the frictional loss calculations for that size of water pipes using the known maximum water flow for that solar water pumping system.

What are solar-powered water pumping systems?

Solar-powered water pumping systems represent an option for producers exploring off-grid water options. Applications can include systems that are designed for permanent year-round use. For certain sites, solar-powered water pumping systems may be adapted for periodic use on rented ground to enhance off-stream water options for tenant farmers.