Solar Water Pumps

The solar water pumping system is a stand-alone system operating on power generated using solar PV ( photovoltaic) system. The power generated by solar cells is used for operating DC surface centrifugal mono-block pumpset for lifting water from a bore or a open well or water reservoir for minor irrigation and drinking water purposes. The system schematic is shown in the figure below. The system requires a shadow-free area for installation of the Solar Panel

1 HP

This system is provided with a 900 W solar PV panel (12 nos. X 75 Wp) and a 1 HP centrifugal DC mono-block or AC submersible with an inverter. The average water delivery of 1 HP solar pump will be around 70,000 liters per day, for a head of 10 metres. The size of suction and delivery lines is 2.5 inches (62.5 mm).

2 HP

This system is provided with a 1800 W solar PV panel (24 nos. X 75 Wp) and a 2 HP centrifugal DC mono-block or AC submersible with an inverter. The average water delivery of 1 HP solar pump will be around 1,40,000 liters per day, for a head of 10 metres. The size of suction and delivery lines is 2.5 inches (62.5 mm).

Advantages of solar pump sets

  • No fuel cost – uses abundantly available free sun light
  • No conventional grid electricity required
  • Long operating life
  • Highly reliable and durable – free performance
  • Easy to operate and maintain
  • Eco-friendly
  • Saving of conventional diesel fuel
swp1
swp2

Technical details of a typical 2 HP SPV pump :

1 HP 2 HP
Solar PV panels 900 Wp comprising of 75 Wp modules 1800 Wp comprising of 75 Wp modules
Motor pumpset type 1 hp centrifugal DC monoblock/ AC submersible with inverter 2 hp centrifugal DC monoblock/ AC submersible with inverter
Operating voltage 60V DC (nominal) 60V DC (nominal)
Maximum suction head 6.0 meters 6.0 meters
Maximum dynamic head 10.0 meters 10.0 meters
Bore well size 150 mm dia. 150 mm dia.
Required shadow free area 100 sq.m. 100 sq.m.
Module mounting structure MS hot dipped galvanized MS hot dipped galvanized
Facilities provided in the panel Seasonal tilt angle adjustment 3 times manual tracking facilities (east- south – west) in morning, noon and afternoon. Seasonal tilt angle adjustment 3 times manual tracking facilities (east- south – west) in morning, noon and afternoon.
Average discharge of pump SPV pump set will have a capacity to give a discharge of 70,000 liters on a clear sunny day (approx.) subject to variation due to solar isolation and water table condition. This discharge will be suitable for irrigating 2-3 acres of land. SPV pump set will have a capacity to discharge of 1,40,000 liters on a clear sunny day (approx.) subject to variation due to solar isolation and water table condition. This discharge will be suitable for irrigating 4-5 acres of land.