"Sun-Powered Water, Zero Energy Cost!"

Solar water pumps harness clean solar energy to operate, requiring no external electricity or fuel—resulting in near-zero operating costs! Ideal for remote areas lacking grid access, they offer easy installation and minimal maintenance, efficiently supporting agricultural irrigation and domestic water needs. By replacing traditional energy sources with solar power, these systems reduce carbon emissions and eliminate costly electricity or fuel bills. A one-time investment delivers long-term benefits, empowering sustainable development and safeguarding every drop of water with green technology.

Principle of solar power generation

Photon Absorption: Sunlight strikes photovoltaic cells, energizing electrons in semiconductor materials (e.g., silicon).
Current Generation: Freed electrons flow as direct current (DC), creating electricity.
Conversion & Use: An inverter converts DC to alternating current (AC) for grid/household use or storage.

Analyze the solar water pump

A

What is your requirement for the flow rate (m³/h)?

What is the height of the tank?

What is the distance between the tank and the well?

How deep is your well (borehole)?

Choose Solar Pumps According To Your Needs

Calculate the "actual lift needed" and find an appropriate pump.

Choose Solar Pumps According To Your Needs

Calculate the "actual lift needed" and find an appropriate pump.

Then choose the most suitable pump according to different flow rates and prices as well as pump materials.

B

How to calculate lift?

A、 Lift underwater (the vertical distance between the water pump and the water surface)

B、 Tank height

C、Lift above water (the vertical distance between water surface and the wellhead)

D、The horizontal distance between the well and the water tank

Actual lift required:

H=A/10+D+C/10+B

C

How to better choose solar panels

It is recommended that the solar photovoltaic panel array power is 1.2-1.5 times the power of the water pump. The voltage of the solar photovoltaic panel array needs to meet the voltage range of the water pump.

Example:

3 Inch Plastic Impeller Solar Submersible Pump

Model: Z3PC3.5-95-72-750

Pump power: 750w

Best input voltage: 90-120v

Maximum open circuit voltage: 160v

Requirements for solar photovoltaic panel array:

Power ≥ 750w*1.3 (that is, power ≥ 975w)

VMP voltage > 90v

VOC voltage < 160v

Solar panel:

power 330w

VMP voltage 37.26v

VOC voltage 45.64v

3 solar panels in series:

power 330w*3=990w

VMP voltage 37.26v*3=111.78v

VOC voltage 45.64v*3=136.92v

Under these circumstances, the power and voltage requirements of the pump can be met, making this solar photovoltaic panel array configuration an acceptable solution.

D

Does it need batteries?

No need battery, if you need to use it at night or in rainy weather, you can choose ZRI AC/DC hybrid solar submersible pump.

How to choose a battery?

If you want to use a battery, a charge manager must be connected. The voltage after the battery is connected needs to meet the voltage of the water pump. The connection method of charging manager is shown in the figure.