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Solar Powered/Hybrid Pumps for 70 Family Units: Estimates & Advice

We need advice regarding solar powered or hybrid pumps

1. We have decided to install solar powered/hybrid pumps for to be dug borewells in our area - about 18 acres a unique private eco colony of about 70 family units. we are not interested nor want any monetary assistance/subsidy from anybody - particularly government.

2. We want this to be ideally distributed systems with independence.

3. The general water table in our area is 60 - 90 ft I guess. 

4. We are trying to understand the purchase costs of the pumpsets and spv / hybrid installations - and we are getting unclear answers.

A ball park figure, calculating in more than one way figure quotes 3.5 lacs to 4.5 minimum to max cost.

A look at  Alibaba.com reveals a staggering array of solar powered pumping systems at starting fob price as low as USD 500.

Our requirement will be atleast 10 to start with as soon as possible. We would like to have information regarding the pumps, their installation and usage.

Kedarnath

smartxpark@yahoo.com

Tags:

Comments

1.

Dear Kedar

We are Seniod Solar Pump Company. Professional do solar submersible pump and solar fountain pumps. If interested, please get back to Seniod Solar Website and see contact address.

Thanks!

Kind Regards
Joff Lu
SENIOD SOLAR C.

2. Dear Kedarnath, Similar query

Dear Kedarnath,

Similar query was raised earlier by a user in the past. You can refer the responses at this link.

http://www.indiawaterportal.org/ask/5355

Anita Bhatt WES-Net India

3.

Dear Kedarnath,

You can refer the list of spv manufacturers in India at this link recommended by Ministry of New and Renewable Energy, Government of India. Some of them seem to be manufacturing solar pumping systems which you may find useful.

http://mnes.nic.in/list/spv-manufacturers.pdf
OR
http://mnes.nic.in/pdf/rem-iitf.pdf

Anita Bhatt
WES-Net India

4.

Dear Kedarnath,

The volume of solar panels and batteries needed would be an enormous startup cost compared to a gas or diesel pump only. If I read you right, the water table needs to be pumped 60 ft just to the surface, if that is the case, you would need a submersible drop pump to be most effective. The energy consumed pumping water usually deters solar power for constant use.

But there have been new breakthroughs in the field of solar power plants. A small one might fit your needs. Then you are free to use conventional pumping methods. I feel that is the direction you should look.

This would work, but smaller to fit your needs.
http://en.wikipedia.org/wiki/Solar_power_tower

Regards,

Mike Carter
mcarter43@cox.net

5.

Dear Kedarnath,

The following information and information points need to be considered when looking for solar bore water pumps;

1. Depth of the well (lift of water)
2. Flow Rate (liters per minutes/cubic meters and hour)
3. Width of drilled well hole (3", 4", 6", etc.)
4.Type of irrigation method to receive water (flood or channel irrigation, gravity feed storage tank, drip irrigation, etc…)
5. Irrigation schedule (continuous 24hr, morning/evening, etc…)
6. Salinity level of the water (if any; ppm or mg/l)
7. Distance from well to irrigation distribution
8. Available sun light average per day

Solar Pumps:

1. Would strongly advise not to have a reserve power element for the pumps (no batteries). They will double the cost of the system and are the weakest point of a solar solution. If water is required outside sunshine hours then extra investment should be made into using larger water tanks.

2. To maximize the efficiency of solar pumps you should consider using solar tracking equipment. It means the pumps will hit their highest efficiency early in the day and last longer in the late afternoon.

3. Always use the most mono crystalline panels (not poly or multi crystalline). They are much more reliable on cloud days and deliver higher power efficiencies.

4. Always choose the correct pump type for the application. Make sure the pump has easy to replace parts.

5. Always fit a float switch or run dry sensor to prevent damage to the pump.

6. Make sure your solar pump allows you to connect mains power or a generator to overcome worst case scenarios.

Cost Example 1:

100ft/30m lift
13 litres per minute / 0.78 cubic metres per hour
6" or larger well hole size
Low saline ground water
Irrigation Type: tank filling or flood irrigation, day time use only

System: 300W solar array, 4" submersible pump with power controller including run dry protection

US$4,500.00 each
Price excludes freight or duty charges. Cables, frames, enclosures, installation or commission not included. (Estimate for this would be an additional US$500-US$1,000).

Cost Example 2:

100ft/30m lift
30 litres per minute / 1.8 cubic metres per hour
Irrigation Type: tank filling or flood irrigation, day time use only

System: 600W solar array, 4" submersible pump with power controller including run dry protection

US$6,500.00 each
Price excludes freight or duty charges. Cables, frames, enclosures, installation or commission not included. (Estimate for this would be an additional US$800-US$1,200).

Regards,

Keith Cobby

6.

i'm seen one time natioanal geographic.
deep dry irrigation project, in this systam water pipe in to the land.
and plant have only water so we can this systam too save water.

7.

Dear Kedarnath, I do not know where you are located but if you are anywhere close to Pune then we can give you a demo of the solar power pack that we have developed. This will give you power during daylight hours. You will need to make your storage facility.

Bharat Junnarkar Sr. V.p. Technical, Suryawatt Mobile Energy Systems Pvt. Ltd.

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