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PluginIndia Electric Vehicles

Solar Panels are pumping life back back in our villages

19/10/2014

15 Comments

 
By Johnson
“Water water everywhere not a drop to drink” is a quote that fits perfectly on India. With an average rainfall of 1,083mm and a topography of rolling hills, lakes and plains India has enough freshwater to fulfil all its needs. 
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A big part of it is played by the high mountain ranges spread equally in all four corners and even the centre of India namely Sahyadri , Aravali, Vindhya, Eastern and Himalayan ranges.  
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Indian Mountain Ranges (marked in brown lines) - are the water storing tanks of the country.
These mountains have very large surface areas and they trap rain water in cavities within the mountains and hold them for months after the monsoon.
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Biggest Country - Russia, Country with biggest water bodies - Canada, Country with biggest percentage of Fresh Water to Land Area-India.
The Himachal mountain range have a unique part as due to the effect of snow forming at night and thawing under the heat of the sun during daytime, it produces rivers that never run dry. Always be careful of playing in a small stream around the Himalayan region as a gently flowing stream during sunrise, could turn into a raging river by midday and go back to be the trickling stream by sunset.

Due to the above reasons India is blessed with the highest ratio of fresh water vs land area in the World. Yet almost the whole of India is under perpetual water shortage especially to irrigate its fields.

There are two reasons for this:

  • Lack of electricity
  • Failure to trap rain water
Solar-powered water pumping solutions is the best way to overcome the 1st problem of shortage of irrigation and drinking water for rural population in India. This can be achieved by setting up solar PV panel combined with electric pumps in remote rural regions of India. Solar powered irrigation pumps are cheaper, longer lasting and more reliable than diesel powered irrigation pumps.  Farmers across India have realized the benefits or solar energy and how it benefits their daily life and have  started implementing solar panels to solve their power problems.

There are multiple players who are engaging the local villagers.  Here are some of them
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PV array on the roof of a branch of the AG Bank, providing backup in case of power cuts
Aryavart Gramin Bank, India 
It is not only technology companies that are pivotal in the spread of sustainable energy. Banks are critical too. In Uttar Pradesh, the Aryavart Gramin Bank has provided the finance for solar photovoltaic systems, bringing lighting to 28,000 rural families across the state by 2009.

The impetus for the bank’s initiative came from its own need to tackle the problem of an unreliable mains supply. Having installed solar backup power units in its own branches, it recognised the potential for its customers who depend on kerosene lights – and the potential for it to provide a commercially profitable service. Credit camps were set up in villages to explain how the financing would work and loans were offered with an initial deposit of 20% and five year repayment terms. The repayment costs are covered by the cost savings on kerosene.

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SELCO-India is a company that believes that clean energy can work for everyone, rich and poor. But it also appreciates that, without credit, clean energy can remain the preserve of the few. By working with local banks and microfinance organisations, SELCO has given nearly 112,000 homes across Southern India access to more reliable and more cost-effective sources of power.

The technology is solar, tailored photovoltaic systems installed in homes and also for market-stall holders and other small businesses. In a country where electricity supply is unreliable for many and non-existent for 44% of the population, this is life-changing. Children can read, women can devote more time to income-generating activities and all can breathe more easily as kerosene–burning lamps are discarded.

The credit comes in the form of loans from the finance institutions which are also tailored to individual circumstance and which are typically repaid over five years with savings from lower fuel costs. SELCO doesn’t make loans itself, but provides the credibility and customer knowledge which the lender requires.


Aurore, India 
Don’t underestimate the potential of solar power. Aurore’s work with photo voltaic (PV) systems across India demonstrates that they are a viable source of energy for local communities.

Aurore is a hub of expertise. Not just technical expertise, but also critical financial and management expertise. By providing such a suite of skills, Aurore enables partner organizations across India to install and operate PV water pumps, solar home systems and solar lanterns providing cheaper, more sustainable energy than diesel-based alternatives.

By 2009 lighting systems had been set up in 17,000 homes. Even more significantly, over 7,000 PV pumps have been installed bringing huge benefits to local communities. In Gujarat alone over 3,000 villages are using PV pumps to provide drinking water or wider irrigation.
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Training session for barefoot engineers

Barefoot College, India 
The Barefoot College believes that practical skills as much as paper qualifications are crucial in supporting and developing the poorest and least literate communities. The training of villagers to install solar lighting systems in the Himalayas captures perfectly that philosophy.

Burdened by temperatures of -40 degrees centigrade in winter and with only six hours of daylight, local communities in the Himalayas often lack the funds needed to buy kerosene for lighting and heating. The Barefoot College’s answer is not short-term subsidy, but practical solutions and training. Barefoot engineers from the poorest communities are trained over a period of three to six months in the installation and maintenance of solar lighting systems developed by the college. By 2009, 472 had qualified.

The College encourages the communities to take responsibility for their energy needs. Each community must form an Energy Committee and chose its own candidates for training. At least 30% of the committee members must be women. The Committee is responsible for deciding how much each family must pay for the system and for administering the system once it is up and running. Like the system itself, responsibility is a long-term investment.

Solar Power Irrigation
Solar powered irrigation pumps have a strong economic rationale compared to high cost of providing last mile electricity connection to villagers and savings in power subsidies given for agriculture. In Punjab, for instance, the ruling Shiromani Akali Dal- BJP party, is giving free power to over 10 lakh farmers in the state, entailing an expenditure of over Rs 4,778.13 crore (US$7.9 million). Generally an Irrigation pump needs a 3 HP motor to draw water from deeper tube-well, this motor costs around Rs 180,000 ($3,000).  In some places famers are complaining that 3 hp is not enough and are demanding 5 and 10 hp solar pumps. See another example.

The fear of unsustainable groundwater extraction, sinking water tables are misplaced as the ground water extracted will go back to the ground as the farmer irrigates his land. 
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Diagram showing how the Solar Powered Irrigation works.
Benefits of Solar Powered Irrigation
·   Agriculture productivity from existing land is doubled by daily availability of reliable irrigation water
·   Crops can be grown during summer and precision farming techniques such as greenhouse agriculture and micro-       
    irrigation can now be practiced.
·   Famers are using mist and drip irrigation and thus becoming more water-efficient and don’t need to flood their fields           whenever they get water. This leads to large scale saving of water resources and more land areas get irrigated.  
·   In addition to improving the economic conditions of rural farmers, distributed solar power infrastructure development         will also generate local employment and prevent mass migration of villagers to urban areas.
·    Solar powered irrigation pump-sets prevent air pollution due to diesel combustion and emissions of greenhouse gases.
·    Farmer saves about Rs 90,000 ($1,500) a year by avoiding diesel usage for the pumps.
·    By having irrigation during the daytime, farmers are prevented from the drudgery of irrigation in the night, which led to        exposure to other random risks such as snake bites or tripping in the dark.
·   Saving in foreign exchange as Diesel is imported. 

Solar solution for irrigation do not need battery packs to store the power, as the irrigation happens during sunlight hours. But it is always better to use batteries as the batteries store the excess power and it can be used later or by the farmer’s household or other equipment. If installing a Fixed solar solution is expensive a Portable Solar cart with pump can be built and can be lend out on rent. The cost of such a pump can be shared by multiple farmers. It could even be given out on rent to power various temporary village activities other than irrigation.

Another solution would be to build a huge common solar panel roof where the villagers can bring their batteries to recharge and pay a small fee for the upkeep & cleaning of the solar roof.
Solutions to trap the water:
One of Mankind biggest challenge is the trapping of rain water into artificial ponds or lakes instead of letting the water flow into the sea and is lost for use. Generally people 100 yrs ago were better at trapping rain water than what we are today. In all parts of the world trapping of rain water was extensively practiced.
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To avoid theft these panels are fitted with anti-theft nuts and each panel has its unique serial number and RFID
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Building more Bunds, Ponds & Tanks to catch rainwater locally:
Traditionally the ancient people used to build bunds and tanks to trap the water not only in areas of low rainfall but everywhere. In Cities like Mumbai they were called “Talao” hence there are names in Mumbai like Dhobi Talao, Bandra Talao, Thane Talao, Bhayandar Talao. Each area had its own rainwater catchment area. Lately people have forgotten the benefits of such catchment areas and these are ignored especially with the World Bank Funded Storm Water Drainage (SWD) systems that are constructed to take the rainwater directly to the sea without allowing it to settle locally. Such Drainage systems are the main reason for the water not replenishing the existing ponds, rivers and even for the falling water table.

Not only SWDs are an utter waste of money but also the rain water gets wasted into the sea. With SWDs large areas get flooded whenever an end point is blocked or flooded. This is the reason Mumbai gets flooded whenever there is continuous rainfall during high tides. On one hand the advice is handed out to conserve rainwater and on the other such Storm Water Drains get built to carry the water to the sea.

Rainfall which is the only source of water (other than melting snow in high range mountains) is nature’s blessing but the sad part is majority (90%) of this water is allowed to flow away and is lost into the sea before, during and after he monsoon. Add a bout of heavy downpour and problems of flooding occurs, leading to loss of land and human tragedy. 
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When was the last time we built something like the above images - Step Tanks to catch water? Lots of buildings have "gone upwards" but no building has been made "downwards". These Step Tanks were common architecture all over India till very recent.  

Johars - A Story of Water Conervation
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Johad constructed by Rajender Singh in the Desert of Rajasthan, India
Rajendra Singh is a well-known water conservationist from Alwar district, Rajasthan in India. Also known as "waterman of India", he won the Ramon Magsaysay Award for community leadership in 2001 for his pioneering work in community-based efforts in water harvesting and water management. He runs an NGO called 'Tarun Bharat Sangh' (TBS), which was founded in 1975. He has helped villagers take charge of water management in their semi-arid area as it lies close to Thar Desert, through the use of johad, rainwater storage tanks, check dams and other time-tested as well as path-breaking techniques. Starting from a single village in 1985, over the years TBS helped build over 8,600 johads and other water conservation structures to collect rainwater for the dry seasons, has brought water back to over 1,000 villages and revived five rivers in Rajasthan - Arvari, Ruparel, Sarsa, Bhagani and Jahajwali. 
A Video showcasing the user of Johars

Final Words
So, Problem no. 1 -  “Lack of Electricity” is being addressed by implementing Solar powered irrigation. 
Problem no. 2. "Wasting Rain Water" - a great deal of work still needs to be done, to trap the immense gift of rainwater that we get from nature. Rajendra Singh has shown us how we can “copy-paste” the stuff that he has done in Rajasthan. We just need 1 person like him in each state if India. We need to build at least 50,000 super step-tanks all over India. Farmers themselves have to find ways to make bunds, pools & tanks. 

Implementing these methods and government support for solar irrigation is a great way to put more food on the table not only in India but also to all countries in the world.
15 Comments
Nikhil
17/11/2014 04:50:02 pm

Good read. But there is one problem with Solar pumps. The pumps all operate during a specific time in the day and if all pumps start at the same time then it impacts the ground water level. For solar pumps to be successful, it has to be combined with energy storage and scheduled start up is necessary in phase wise manner. But atleast its a good start. Clean energy for farming is very important and good for farmers.

Reply
Johnson
19/11/2014 03:40:15 am

Yeah Nikhil... apparently it will seem so to but this is not a big problem ... not for India and not for a desert like Rajsthan nor for a desert like Qatar.

I think the commodity called "Rain water" is grossly undervalued in India... We all say Save "Tap" water but we have never said save rain water... we regularly let rainwater go to the sewer from where it is channeled via Surface Water Drainage Systems (or storm water drainage) into the sea instead of putting fresh water back into the earth?!!?? This is a very serious issue and the cause of falling water table.

Can you believe in a Desert country like Qatar the water table is higher than India because of lack of SWD systems... yep now they are becoming "developed" and have started building SWD systems and soon the water table will fall in Qatar too.

The modern civilization has completely stopped building step-tanks to improve the ground water table... now even building dams are a no-no. Every hour of just a place like Mumbai rain sends millions of liters of pure clean rain water into the sea. It is actually the high tide that stops the SWD systems and floods the low lying areas of mumbai and refresh the remains of mithi river that keeps the water table high in those areas.

Above all Solar Powered pumps encourages the farmers to use drip irrigation on a large scale as it makes the watering process almost automatic or unattended. And usage of drip irrigation lowers the waste of water and thus less water is used.

Also using Solar Power or Solar Thermal power the farmer can desalinate sea water.

Another way is to use Treated Sewage Effulent (TSE)... GCC countries uses this a lot to grow grass on footpaths and gardens. More population more = Shit = more TSE=more free fertiliser, water and Gas.

Even in a desert country people have taken to agriculture and even in fact planting rice successfully... Saudi has done it in a very big way.


Reply
Johnson
19/9/2015 02:39:03 pm

Indian business are kept away to a great extent in US and Euro markets citing stuff like "inflameable fabrics", "fruitflies" "below 200km range for EV". Which fabric is not inflameable? Which fruit doesnt have fruit-flies as it ages? Which EV except Tesla can go beyond 200km???... Lets do the same eradication to US and Euro products... its very easy if one considers their low RULE rule of "dual-use (solar & wind) technology combined with 1 acre farming or 1acre pond as a must for each acre of installation"... this would be difficult for US & Euro installers but easy for Indian businesses to follow.. Even if US & Euro installers are able to follow then it will be beneficial to India too.

Reply
Rajasthan government subsidy scheme on solar irrigation pumping link
15/11/2015 12:50:58 pm


Hello,
I have land in Rajasthan and want to develop solar power plant under government scheme. So whats the process, time taken and cost for it
solar pumping system
http://www.e-rajasthan.com/rajasthan-government-subsidy-scheme-on-solar-irrigation-pumping/

Reply
Johnson
17/11/2015 03:26:52 pm

There are many ways one is you have to apply online http://www.rrecl.com/Index.aspx

Second you can approach any company installing it and they will install it for you depending upon the size of the plant Loans can also be availed from banks.

Reply
Mhmuod alkilani link
3/12/2016 10:51:37 pm


بدء الدردشة
الخميس 05:30 م
I have need a complete system to pump solar water pump capacity of 70 kW and the depth of the water from the earth's surface 150 meters and pump will be depth of about 140 m4h
Is it possible to send me the full cost of this system
And that you are going to complete installation of this system will be how much the final cost
Please note that I wanted to be the olfactory receptor energy capacity is greater than the capacity of the pump of 25 kW for use in luminescent later
With sincere thanks mahmoud alkilani : mahmuod.ALkilani@sunnylandco.com

Reply
ZAMA LALBIAK
18/10/2018 02:30:31 pm

Can you provide the manufacturers of solar water pumping systems?

Reply
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Solar water pump manufacturers link
18/12/2019 03:17:28 pm

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13/2/2020 01:25:57 am

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Kamdhenu Water Tanks link
16/8/2022 01:10:12 pm

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John Carston link
15/10/2022 05:16:37 am

I like how you mentioned that 1,083mm of rainfall could be sufficient to supply villagers. The other night, my father informed me he was hoping to find a water pump that could provide cost-efficient water pumping. He asked if I had any thoughts on what would be the best option to consider. I'm thankful for this instructive article. I'll tell him that he can consult a well-known solar water pump company in town as they can provide explanation about their water pumps.

Reply

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