Solar Water Pumps

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Karthik Davey

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Dec 20, 2011, 11:04:17 AM12/20/11
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Dear All, Group Members,
 
here is a story of a green customer. There are many people all around professing to be professionals with no guarantee whatsoever of their product ever working but all too ready to sell a beta testing range of products.
 
I invite members to write to me and know about the person and a product called solar water pump much publicised in Southern India buit just not able to work in any conditions whatsoever and finally being a loss to me to a tune of 1.75 lakhs. Its imperative that such companies get filtered out and are unmasked.
 
Regards
 
Karthik Davey
 

Manu Sharma

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Dec 20, 2011, 11:26:16 PM12/20/11
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Dear Karthik,

Evidently you've had a bad experience with a solar water pump dealer / manufacturer. Please share the details of your experience. This will benefit Green-India members and others who may read this thread through archives. If this individual is part of the group we will also give him / her a chance to explain. 

Note that Green-India rules prohibit personal attacks and insults, so please share only the facts of the case. 

Thanks,
Manu
______________

Manu Sharma
Convener / Moderator  
Green-India


 
Karthik Davey
 

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Nagaraj Ramanna

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Dec 21, 2011, 3:07:52 AM12/21/11
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Dear Karthik

Solar Water pump with Battery

Basically motor is a big challenge in Solar Water Pump.

You need to understand the capacity of the motor based on
Well depth
Solar Panel required
Battery required
Finally how many times we need to pump from the well.


Solar Water pump without Battery

If Solar Water Pump is directly connected with the Solar Water Pump.

You should know the capacity of the motor based on
Well depth
Solar Panel. Here number of panels should be more.
These products have failed many times. Due to sunshine etc.,

Generally, the motor pump depth is restricted to 100 feet. If the well depth is below 100 feet the power loss is high.

In india there are good solar pump products which  is not cheap at least 2 lakh above for pump alone. The panel is extra.

Regards,
Nagaraj Ramanna

Kannan M.

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Dec 21, 2011, 5:32:09 AM12/21/11
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Normally in Solar pumps, we use BLDC Motors ( Brushless DC) and these can be of 12V/24V/48V depending on the head to be delivered. Being a low voltage product, the current could be fairly high and good quality cables need to be used. Even I have seen some companies offering Solar pumps with conventional AC motors powered by solar power through an inverter. Such systems are of low efficiency and requires much bigger solar array making it expensive. 

M. Kannan / 

soumyabrata rahut

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Dec 21, 2011, 4:24:05 AM12/21/11
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why Use a solar pump when you could use wind mills to pump water,Its cheaper. Over head storage tanks can be used to take care of wind availability issues. The lack of batterries also makes the systems much cleaner.

there are also other options such as gravity pumps which are location specific but much cleaner than any other option i know of.

warm regards
soumyabrata

ravindra dubey

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Dec 23, 2011, 7:17:56 AM12/23/11
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Dear Karthik,

I know a co in Chennai ( Go Green Enterprises- Dr Ramarathnam- 09282170292) who have developed BLDC motors and controllers for Solar Pumps. The beauty of this Pump that it converts single phase into 3 phase. It ultimately increases the RPM of the Pump to 3 times and consequently water delivery volume increases 9 times!

It is a promising Product for Indian customers and may be able to resolve your concerns.

The Contact nos of co- Go Green Enterprises, Chennai,  Dr Ramarathnam- M: 09282170292.

This info may be useful to other members of Grren India Gp, hence posting it to General  audience.

Thanks

 

For GRANZöR ENGINEERINGS Private limited

Ravindra Prakash Dubey
Managing Director  

BTech(IITKanpur), MBA(FMS)
Cell: +(91) 7838323057, 9868156866       Web: www.granzor.in    
Tel: +(91) 11-22714381-80                          e mail: ravidu...@granzor.in

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Ritesh Parikh

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Dec 23, 2011, 10:01:05 AM12/23/11
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Kirloskar Pump also provides same kind of Pumps with great efficiency

Thanks
Ritesh Parikh
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