RAJASTHAN SOLAR WATER PUMPING PROJECT 2011-12 Under JLNNSM and RKVY 1
Presentation coverage 1. General scenario 2. Convergence: Irrigation vis a vis Solar energy 3. Initiatives in Rajasthan 4. Implementation 5. Technology & Achievements 2
1. 5 trillion kwh/ year theoretical potential. Most of the country receives more than 4kWh/m2 /day 2. In most parts of India, clear sunny weather is experienced 250 to 300 days a year. Solar insolation in India Rajasthan 1. Best solar radiation in India; Amongst the best in the world 2. Solar radiation 6-7 kwh/sq. meter 3. More than 325 sunny days in a year (amongst the best in India) 3
WHY SOLAR ENERGY 1. Abundantly available at doorstep 2. free of cost 3. Clean energy, pollution free 4. Eco-friendly, Harmonious with nature 5. Ideal for remote areas, where electricity is not available, availability is capital intensive and diesel is costly/ difficult to get 6. Safe to handle. Devices can be used by layperson without risk 7. Suitable for day time irrigation 8. Uninterrupted supply for 6-8 hours 9. Strong correlation with plant water demand 4
Rajasthan: Water & Energy the most crucial resources (1) Renewable Energy in Agriculture sector: the dire need Irrigation Water 1. Area 10.5% - water resource only 1% 2. One third of the cultivated area under irrigation 3. About 70% area is irrigated by wells & tube wells (ground water) and 27 % by canals 4. Irrigation efficiency (sandy soils) low: 25-35% Conventional Energy Present generation capacity 9646 MW Present Agriculture consumption 38% Long queue for connections Electricity losses during transmission and distribution extremely high - 30 to 45% 5. Rainfall: Erratic, uneven distribution and low (Av. 575 mm) 6. Ground water table going down rapidly and quality of water deteriorating 5
Rajasthan: Water & Energy the most crucial resources (2) RE in Agriculture sector: the dire need Irrigation Water Water demand of Agriculture sector: >85% Dependency on ground water Canal Irrigation : dependency on neighbouring states Net Irrigated area 6.4 MH (Micro 1.1 MH) NW part of state: Adoption of sprinklervery high Trend of drip adoption: accelerated Focus is to increase the irrigation efficiency at farms Energy for Agriculture sector Farmers live in remote areas : Electricity access is a challenge Interrupted supply for irrigation is also a major issue Availability mostly in rotation: Night time irrigation is a problem for farmer Heavy subsidy by the state for agriculture supply A long queue for new connections Un-interrupted supply and access to remote areas is the focus 6
Rajasthan: Water & Energy the most crucial resources Solution Irrigation Water Efficient techniques of irrigation - drip, mini sprinkler, sprinkler Rajasthan is the leading state in adoption of sprinkler technique Drip irrigation is the most efficient technique and is on top priority Solar programme tied up with drip technology Use of waste & saline water Energy for Agriculture sector Nature s free gift and environmental friendly solar energy can access the remotest places No issue of transmission losses and transmission costs Uninterrupted supply during the day time Exploitation of strong co-relation of water requirement of crop and availability of sun light Potential to use solar energy for waste water / recycled water in agriculture sector That s why the state government has made budget announcement to promote both the techniques side by side. 7
Suitability of irrigation methods with solar pumps Distribution method Typical application efficiency Typical head Suitability for use with solar pumps Flood 40-50% 0.5m Depends on local conditions Open Channels 50-60% 0.5-1m Depends on local conditions Sprinkler 70% 10-20m Yes Trickle/ drip 85% 1-2m Yes 8
Convergence with drip Saving water & energy Accelerated growth in Drip coverage 25000 20000 Electrified wells & tube wells Year 1999-00 Nos.Lac 5.99 Phy. (Ha.) 22072 2000-01 2001-02 6.25 6.40 49% 15000 10000 2002-03 2003-04 2004-05 2005-06 6.64 6.87 7.27 7.70 71% 53% 8743 13401 5000 86% 5121 0 2653 2751 582 704 444 668 1134 1614 2000-01 2001-02 2002-03 2003-04 2004-05 2005-06 2006-07 2007-08 2008-09 2009-10 2010-11 2011-12 AP 9
Vision: Solar Pump Project 1. Alternative for conventional energy in Agriculture sector 2. Long waiting queue for new electric connections avoided (Rs( Rs. 700 cr investment needed by the farmers for 70,000 new connections) 3. Boon for saving precious energy and water resources 4. No need for electric transmission arrangements; no transmission losses 5. Large scale adoption of technology will lead to cost cutting 10
Solar pumps 1. Non-dependent on conventional energy (fuel & electricity) 2. No recurring expenses 3. Long operating life 4. Highly reliable and trouble-free performance 5. Easy to operate and maintain 6. Eco-friendly 7. Accessibility in remote areas 8. Un-interrupted supply for irrigation during day time 9. Carbon credit 11
State Government initiatives 1. Solar pump programme at 14 Govt. farms during 2008-09 under RKVY 2. Pilot project of 50 solar pumps at farmers field during 2010-11 3. Imparting training to the stake-holders along with regular MIS trainings 4. CM Budget Announcement for solar pump commissioning in the state: 2011-12 5. Replication of the project at large scale in 16 district with a target of 1600 pumps during 2011-12 6. Extensive publicity of the programme. 12
SOLAR WATER PUMPING PROGRAMME 2011-12 FOR HI-TECH HORTICULTURE PURPOSES Area of operation Rajasthan (16 selected districts) Physical Targets 1600 Nos. (4450 KWp) MNRE (under JLNNSM) Rs. Lacs 2887.61 RKVY (SLSC Approval) Rs. Lacs 5390.20 Farmers contribution@ 14%- Rs. lacs 1308.30 Total Project Rs. lacs 9586.10 13
Assistance pattern Total Subsidy : 86% of base rate JLNNSM/ MNRE : 30% of unit cost RKVY : 56% of unit cost Shri Ganganagar 2010-11 14
15 District-wise targets Mode of implementation Mode of implementation 1600 50 40 40 40 40 40 120 40 90 250 425 35 30 270 30 60 Target 2665 58 55 41 60 173 40 34 146 118 342 946 30 30 515 42 35 Appli cation 1236 31 12 31 5 40 5 40 51 250 425 30 270 30 16 Adm Sancti on G.Total Sikar 16 S. Madhopur 15 Nagour 14 Kota 13 Jodhpur 12 Jhunjhunu 11 Jhalawar 10 Jaisalmer 9 Jaipur 8 Hanumangar h 7 Ganganagar 6 Dholpur 5 Chittorgarh 4 Bikaner 3 Bhilwara 2 Alwar 1 District S. No.
Implementation - Stakeholders Selection criteria District - Based on adoption of 1. WHS 2. Orchards 3. Drip irrigation 4. Protected cultivation/ Drip cultivation Beneficiary/ farmer 1. Owner of at least 0.5 ha land 2. Irrigation with drip system & owns water harvesting/ storage structure 3. Should be adopter of hi-tech Agri-Horti activities Supplier 1. Must be manufacturer of SPV Panel/ Module 2. Annual Turnover > Rs. 5.00 Crore 3. Experience in solar field 16
Implementation - Manufacturers Empanelled firms - Through open & transparent system 1. Jain Irrigation Systems Ltd, Jain Energy Park, Jain Velly, Shirsoli Road, Jalgaon, Maharashtra 2. Rajasthan Electronics & Instruments Ltd 2, Kanakpura Industrial Area, Jaipur, Rajasthan 3. Topsun Energy Ltd., B-101, GIDC, Electronics Zone, Sector-25, Gandhinagar, Gujarat 382028 4. WAAREE Enegres Pvt. Ltd. 36, Damji Shamji Industrial complex, Off. Mahakali caves Road, Andheri (E.), MUMBAI- 400 093 (Pump outsourcing: Lowrentz, Grundfos, Rotoaq, Kirloskar) All Manufactures have agreed to supply at same minimum rate Manufacturer choice by concerned farmer Technical assistance share with RRECL 17
Implementation strategy Manufacturers Responsibility 1. Should meet the specifications of JLNNSM for supplies 2. Technical back up to the beneficiaries & technical design 3. Provide 5 year guarantee, 5 year ASS & Insurance 4. Strong network of services 5. Supply & commissioning within 40 days Documents 1. Application with photo 2. Land ownership: Jamabandi/ passbook 3. Irrigation source 4. Rs. 10,000 as part of farmers share 5. Purchase bill/ invoice from empanelled manufacturer 6. Techno-economic survey & design map 7. Tri-party Agreement: IA/Supplier/User Shri Ganganagar 2010-11 18
Implementation Process Application by farmer to DHDS personally or through field staff/ dealer/ bank Scrutiny of eligible application by district unit Disposal: If applications are a. in target limit first come first serve basis b. over target lottery under chairmanship of collector Administrative approval to eligible farmers Farmers share deposit at district unit/ manufacturer Work order by district unit Supply of material by empanelled manufacturer within 30 days Commissioning of system within 10 days Physical verification of installed set by field staff 19 Financial sanction for eligible cases Subsidy DD to supplier
Base rate and subsidy for SPV solar pumps in Rajasthan 2011-12 Item With Manual Tracker With Auto Tracker Details Surface pump 20 m head Submersible pump 20 m head Submersible pump 50 m head Surface pump 20 m head Submersible pump 20/ 50 m head 2200 wp Base Rate 3000 wp Total Subsidy (86 %) 2200 wp 3000 wp Farmers Share (14 %) 2200 wp 3000 wp 376500 537000 323790 461820 52710 75180 389900 560300 335314 481858 54586 78442 395800 562300 340388 483578 55412 78722 414500 570000 356470 490200 58030 79800 418000 570000 359480 490200 58520 79800 20
Photovoltaic pumping system specifications Motor pump/ Configuration Output (m³/day) Head (m) Outlet Dia. (Inch) Est. Area Orchard System Price (ha) Rs. lac Surface motor pump 1800 wp Surface motor pump 2200 wp 187 10 2.5 3 (low head) 223 10 2.5 4 (low head) 3.05 3.76 Submersible pump 1800 wp 72-88 29-36 20 50 2 1.25 1.5 0.6 3.34 3.36 Submersible pump 2200 wp 64-75 32-39 20 50 2 1.25 1.5 0.6 3.90 3.96 Submersible pump 3000 wp 130-164 54-68 20 50 2.5 2 2.5 1.0 5.60 5.62 Submersible pump 5000 wp 193-250 81-99 20 50 3 2 4.0 2.0 8.46 8.48 21
Solar powered drip irrigation system Components 1. Solar Powered Pump: Available in surface & submersible types. Maximum vertical lift up to 240 m and maximum discharge up to 90,000 LPH 2. Solar Pump Controller: All inbuilt protections are available. Pump starts and stops automatically. 3. Solar PV modules and structure. 4. Solar Tracker 5. Drip Irrigation System consisting of Filter, Pipes, Valves, Drip Lines, Fittings etc.. 22
Solar powered drip irrigation system Typical model 23
Solar and electric systems Comparison 1. Solar system is simpler and has fewer moving parts as compared to electric connection. 2. Transmission losses negligible 3. No chances of electric theft, land losses in lines, accidents & farmers agitation (law & order) 4. Uninterrupted day time supply & correlated with WR 5. Cost - When solar and electric pumps (5HP) are compared in terms of total life cycle subsidy cost spread over a life span of minimum 25 years, solar pump system is cost effective (Cost: Rs.7.29 lac) as against electric system (Cost Rs.12.24 lac) 24
Solar pumps: benefit over electric systems 1. Govt. investment per ha per year for electric- Rs. 24500 2. Govt. investment per ha per year for Solar - Rs. 14500 3. Savings over electric per ha per year - Rs. 10000 Potential coverage 5000 ha per year, with 2500 solar pumps, each of 5000 WP Investment on subsidy @ Rs. 5.00 lac per pump Rs. 125 cr Saving over electricity in 25 year (10000x5000x25) Rs. 125 cr 25
S.No. 1 2 3 Solar pumps: benefit over electric systems (Analysis) 25 kva transformer with meter cost Details : 11 kw Sub Station Structure Cost { Structure, GO&DO and LA} 11 KV Line per consumer assuming 5 pole average requirement Sub total : Cost input 25 yr 90000 40000 55000 185000 Per ha /yr 4 Amount being charged from consumer by Discom for 5HP Connection @2500/- per HP: 12500 A Net Government financial load for connection : Establishment cost for 25 years @ 10% per year 172500 431250 3450 8625 5 Calculation of Indirect Electricity tariff subsidy financial load per consumer on Government : (a) 5 HP Load running 6 Hrs per day for 225 days in a year : 3.75 kw x6 Hrsx 225 days= 5062 units 5063 (b) Electricity being charged for 5062 unit billing @ Rs. 1.40 per unit 7088 (c) Revenue return possible from the same electricity under Commercial tariff plan @6.30 per unit: 31894 6 Net Electricity tariff difference indirect subsidy to consumer per year (c-b) 24806 B Total Electricity tariff difference indirect subsidy to consumer in 25 years: 620156 12403 8 Total subsidy being provided to consumer on connection as well as indirect tariff subsidy in 25 years period : A+B 1223906 24478 C Solar subsidy (86% of cost Rs.8.48 lac) 729280 14586 D Saving of subsidy over electricity / ha/ year Saving against Potential per year 5000 ha (2500 pumps) 9893 49462625 26
Solar and diesel pumps Comparison 1. Solar pumps have higher discharge and head ranges available, as compared to diesel pumps. 2. Solar pump is simpler and has fewer moving parts as compared to diesel pumps. 3. Solar pump requires mostly unskilled labour to run for years together. 4. Total life cycle cost spread over a minimum 20 years - solar pump system is cost effective Cost / ha / yr : solar Rs.42000, diesel Rs. 63000 5. Solar pumps require no fuel transportation and storage. 27
Solar Photovoltaic (PV) pump operated drip irrigation system 1. PV array 1800-5000 Wp 2. DC motor-pump, 3. Filter, 4. Main, sub-mains and drippers, 5. Emission uniformity is 92 94%, 6. Discharge 2-4 l/h, 7. Pressure range 1-5 kg/cc Date palm Hanumangarh 2010-11 Ganganagar Cotton 28
Integration of Solar PV with Sprinkler Irrigation Jhunjhunu: minisprinkler 2010-11 29
Solar pumps: Open Well Dewadawas- Tonk 2008-09 30
Solar pumps: Water storage tank Jaipur 2010-11 31
Solar pumps: Diggies/ WHS in canal area About 10,000 Diggies built Apprx. farmer contribution Rs. 200 crore Sriganganagar 2010-11 32
Sriganganagar: Diggies 33
Hanumangarh: Diggies 34
Jhunjhunu: Tube wells 35
Feedback 1.Solar pump programme undertaken during 2008-09 & 2010-11 implemented and running successfully (Solar Pumps of 3000 Wp already running in tubewells at farmer fields of Jaipur, Jhunjhunu, Sikar, and Sawaimadhopur) 2.successfully running in low depth wells/ tube wells, and diggies - Bore well depth - 170 to 270 ft. 3.Pump discharge 5,400 to 10,000 ltr/ hr 4.Auto-tracker has increased the efficiency 5.All beneficiaries using water saving devices 6.Farmers are satisfied Demand from all districts, for all sources of water, and for high Wp Shri Ganganagar 2010-11 36
Conclusions Water access to un-electrified/ remote areas Substitute up to 5-7.5 HP electric connections Judicious use of irrigation water through micro irrigation, and integration with Renewable Energy Sources. Solar pump is additional award for farmers adopting Hi-Tech cultivation and WHS with drip Wide replication will bring costs down within the reach of farmers, with gradual withdrawal of subsidy Demand from farmers to extend project in whole state 37
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