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SOLAR IRRIGATION

WITH AUTOMATIC SWITCHING

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 waterpurpose. The system schematic is shown in the figure below. The system requires a shadow-free area forinstallation of the Solar Panel

1 HPThe system is provided with 900 W solar PV panel (12 nos. X 75 Wp) and 1 HP centrifugal DC mono-block / ACsubmersible with inverter. The average water delivery of 1 HP solar pump will be around 70,000 liters per day, fora 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 life

Highly reliable and durable- free performance

Easy to operate and maintain

Eco-friendly

Saving of conventional diesel fuel

2 HPThe system is provided with 1800 W solar PV panel (24 nos. X 75 Wp) and 2 HP centrifugal DC mono-block / ACsubmersible 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:

1 HP 2 HP

Solar PV panels 900 Wp comprising of 75 Wpmodules

1800 Wp comprising of 75 Wp modules

Motor pumpset type 1 hp centrifugal DC monoblock/ ACsubmersible with inverter

2 hp centrifugal DC monoblock/ ACsubmersible 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 freearea

100 sq.m. 100 sq.m.

Module mounting structure MS hot dipped galvanized MS hot dipped galvanized

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Facilities provided in thepanel

Seasonal tilt angle adjustment 3times manual tracking facilities(east- south west) in morning,noon and afternoon.

Seasonal tilt angle adjustment 3 times manualtracking facilities (east- south west) inmorning, noon and afternoon.

Average discharge ofpump

SPV pump set will have thecapacity to give discharge of 70,000

liters on clear sunny day (approx.)subject to variation due to solarisolation and water table condition.This discharge will be suitable forirrigating 2-3 acres of land.

SPV pump set will have the capacity to givedischarge of 1,40,000 liters on clear sunny

day (approx.) subject to variation due to solarisolation and water table condition. Thisdischarge will be suitable for irrigating 4-5acres of land.

SOURCE:http://www.analogicgroup.com

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CIRCUIT USED: The 5V supplies can be replaced by small lead acid batteries.

SOURCE:www.8051projects.com

http://www.8051projects.com/http://www.8051projects.com/http://www.8051projects.com/http://www.8051projects.com/

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GOVERNMENT SUBSIDIES:

The cost of 2-HP solar water pump is Rs. 4

lakh while a 5-HP pump costs Rs. 10 lakh.

Farmers will get 80 percent subsidy on the cost of the pump while the state government

will provide them loan on remaining amount at the interest rate of 5 per cent, he said.

SOURCE:http://www.agricultureinformation.com

http://www.agricultureinformation.com/http://www.agricultureinformation.com/http://www.agricultureinformation.com/http://www.agricultureinformation.com/