What are solar water pumps?

Solar water pumps are electrical devices that run one electricity generated by photovoltaic (PV) panels used to deliver(pump)water for drinking, livestock, or irrigation purposes. They consist of three main parts, the pump itself, a controller and solar panels. The solar panels are used to generate electricity from the Sun to run the pump. The controller is used to match the output power t the pump receives with the input power from solar panels connected to the system. It also provides a low voltage or high voltage protection which reduce maintenance cost. Water is usually pumped up into a storage tank for use.
One advantage of solar pumps is their reliability in remote areas due to their low maintenance cost once installed. Solar pumps can have four systems of operation that is, centrifugal, rotary motors, diaphragm or piston. Rotary pumps operate in a circular motion and displace a constant amount of liquid with each revolution of the pump on the other hand, centrifugal pumps rely on kinetic energy mechanical means to move liquid . Centrifugal pumps are best in pumping situations that require high quantity of water but low head where as helical rotor pumps operate better with higher heads but lower quantity of water required. Centrifugal pumps also operate better in silted water than their helical rotor counterparts.


Types of solar pumps.

There are basically two types of solar pumps, submersible and surface pumps, submersible pumps are submerged in a borehole or well while surface pumps are connected to a pipe that goes into the source of water. Submersible pumps are quiet where as surface pumps can be noisy.


How do solar pumps work?

Solar pumps work like other pumps the difference is that they use direct current produced by solar panels. Centrifugal water pump work by the use a series of discs called impellers. They rely on kinetic energy. When the pump starts running, the discs rotates, which makes the fluid around it rotate. This rotation causes centrifugal force on the water particles, which causes the water to move radially up and out.

Helical rotor pumps use mechanical means by using a rotor to move the liquid up by positive displacement.

Centrifugal pumps are best suited for shallow depths but high volumes where as helical rotor pumps are used for deep wells but where lower volume of water are needed. Centrifugal pumps also are less susceptible to silt in the water.

grundfos.jpg

GRUNDFOS SOLAR WATER PUMPS

  • Flow rate, Q: max. 90 m3 / h
  • Maximum Flow rate of 2,750 litres/hr
  • Height, H: max. 120m
  • Voltage: 30-300 VDC
  • Ksh 280,000

    Order Now
    lorentz.png

    LORENTZ SOLAR PUMPS

  • Flow rate, Q: max. 90 m3 / h
  • Maximum Flow rate of 2,750 litres/hr
  • Height, H: max. 120m
  • Voltage: 30-300 VDC
  • Ksh 99,000

    Order Now
    logo2.png

    PEDROLO WATER PUMP

  • Maximum head is 65M/215 feet
  • Maximum Flow rate of 3,000 litres/hr
  • Optimised irrigation solution for upto 3 acre farm
  • Includes: Submersible pump,50M electric cable,controller,Climate Smart battery fittings,4LED Light Bulbs and USB charging ports.
  • Ksh 129,000

    Order Now
    logo2.png

    ROOMNY SOLAR WATER PUMP1

  • Maximum head is 30M/100 feet
  • Maximum Flow rate of 1,100 liters/hr
  • Optimize irrigation solution for up to 1 acre farm
  • Includes: Submersible pump,50M electric cable,controller,310W solar panel,50M HDPE pipe and fittings
  • Ksh 75,000

    Order Now
    logo2.png

    ROOMNY SOLAR WATER PUMP2

  • Maximum head is 30M/100 feet
  • Maximum Flow rate of 2,750 litres/hr
  • Optimised irrigation solution for upto 2 acre farm
  • Includes: Submersible pump,50M electric cable,controller,2 X 310W solar panel,50M HDPE pipe and fittings
  • Ksh 99,000

    Order Now
    logo2.png

    ROOMNY SOLAR WATER PUMP3

  • Maximum head is 65M/215 feet
  • Maximum Flow rate of 3,000 litres/hr
  • Optimised irrigation solution for upto 3 acre farm
  • Includes: Submersible pump,50M electric cable,controller,Climate Smart battery fittings,4LED Light Bulbs and USB charging ports.
  • Ksh 129,000

    Order Now