H o wt oC h o o s eS o l a rW a t e rP u m pC o r r e c t l y?

The nature of the water source and the amount of water output are an important basis for the construction and selection ofsolar water pumpsystems. The solar water pumps used by different water sources are quite different. Generally,submersible pumpsare required for water sources deep underground. The water source is surface water. Surface pumps are generally used. If the sediment content in the water is large, a sewage pump should be used.

确定水源地最重要的条件之一是枯水期水源地不能干涸。一般情况下，池塘水位变化较小，但需确定干旱期的最低水位和水深。深井需确定井深、井径、水位、动水位和出水量。河流需确定汛期的最低水位、水深和最高水位。

Solar modules are the power core of the entiresolar water pumpsystem. The selection and configuration of solar modules are the main factors that determine the cost performance ofsolar water pump systems. According to the light intensity and temperature characteristics of solar modules and the performance evolution characteristics of the life cycle, the general photovoltaic module capacity is 1.3 to 1.6 times larger than the power required by the pump motor, which is a relatively reasonable configuration. The specific size needs to be determined according to the head and pump selection. The photovoltaic array needs to be installed in a place with a stable foundation and good sunlight.