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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 bore / open well or water reservoir for minor irrigation and drinking water purpose. The system schematic is shown in the figure below. The system requires a shadow-free area for installation of the Solar Panel
1 HP
The system is provided with 900 W solar PV panel (12 nos.x75 Wp) and 1 HP centrifugal DC mono-block/AC submersible with 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 & 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 File
- Highly reliable and durable- free performance
- Easy to operate and maintain
- Eco-friendly
- Saving of conventional diesel fuel
2 HP
The system is provided with 1800 W solar PV panel (24 nos. X 75 Wp) and 2 HP centrifugal DC mono-block / AC submersible with 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 & delivery lines is 2.5 inches (62.5 mm).
Technical details of a typical 2 hp SPV pump
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1 HP
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2 HP
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Solar PV panels
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900 Wp comprising of 75 Wp modules
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1800 Wp comprising of 75 Wp modules
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Motor pumpset type
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1 hp centrifugal DC monoblock/AC submersible with inverter
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2 hp centrifugal DC monoblock/AC submersible with inverter
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Operating voltage
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60V DC (nominal)
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60V DC (nominal)
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Maximum suction head
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6.0 meters
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6.0 meters
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Maximum dynamic head
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10.0 meters
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10.0 meters
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Bore well size
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150 mm dia.
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150 mm dia.
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Required shadow free area
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100 sq.m.
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100 sq.m.
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Module mounting structure
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MS hot dipped galvanized
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MS hot dipped galvanized
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Facilities provided in the panel
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Seasonal tilt angle adjustment 3 times manual tracking facilities (east- south – west) in morning, noon and afternoon.
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Seasonal tilt angle adjustment 3 times manual tracking facilities (east- south – west) in morning, noon and afternoon.
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Average discharge of pump
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SPV pump set will have the capacity to give discharge of 70,000 liters on 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.
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SPV pump set will have the capacity to give discharge of 1,40,000 liters on 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.
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