Solar water pumping systems constitute a cost effective alternative to irrigation pump sets that run on grid electricity or diesel. Solar Photovoltaic (SPV) sets constitute an environment-friendly and low-maintenance possibility for pumping irrigation water.
Solar water pumping systems constitute a cost effective alternative to irrigation pump sets that run on grid electricity or diesel. Solar Photovoltaic (SPV) sets constitute an environment-friendly and low-maintenance possibility for pumping irrigation water.
PUMP CONTROLLER POWER (HP) | PUMP CONTROLLER (AMP) | PV MODULE MAX. POWER (Wp) | MPPT RANGE (VOLT) | Water Pump | ||
POWER (KW) | PUMP HEAD RANGE (Mtr) | Flow RATE (Ltr/Min) | ||||
1.0 | 2.5 | 1200 | 60-100 | .75 | 30 | 77 |
2.0 | 4.2 | 1800 | 60-100 | 1.5 | 30 | 170 |
3.0 | 5.5 | 3000 | 420-750 | 2.2 | 30-50-70 | 290-170-100 |
5.0 | 8.2 | 4800 | 420-750 | 3.75 | 30-50-70 | 450-280-212 |
7.5 | 13 | 7500 | 420-750 | 5.5 | 50-75-100 | 240-175-150 |
7.5 | 13 | 7500 | 420-750 | 5.5 | 50-75-100 | 240-175-150 |
10.0 | 18 | 10000 | 420-750 | 7.5 | 75-100 | 220-180 |
15.0 | 24 | 15000 | 420-750 | 11.0 | 100-150 | 350-260 |
25.0 | 38 | 25000 | 420-750 | 18.0 | 150-200 | 380-280 |
30.0 | 45 | 30000 | 420-750 | 22.0 | 200-250 | 380-280 |
40.0 | 60 | 40000 | 420-750 | 30.0 | 250-300 | 450-360 |
The Solar PV array is a set of photovoltaic modules connected in series and possibly strings of modules connected in parallel.
The Controller is an electronic device which matches the PV power to the motor and regulates the operation of the pump according to the input from the solar PV array.
Pump Set: Pump sets generally comprise of the motor, which drives the operation and the actual pump which moves the water under pressure.
AC Motors require inverters to convert DC to AC. Solar pumping systems use special electronically controlled variable frequency inverters, which optimises matching between the panel and the pump.
The DC Motors with permanent magnet are generally more efficient. DC Motors may be with or without carbon brushes. DC motors with carbon brushes need to be replaced after approximately every 2 years. Brushless designs require electronic commutation. Brushless DC Motors are becoming popular in the solar water pumps
Placed besides the water source (lake, well, etc.).
Placed in the water source.
Placed on top of the water. Surface pumps are less expensive than submersible pumps but they are not well suited for suction and can only draw water from about 6.5 vertical meters. Yet they are excellent for pushing water over long distances.