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RAJASTHAN SOLAR WATER PUMPING PROJECT 2011-12

 

 

 

Solar Water Pumping Programme 2012-13 for Hi-tech. Horticulture purposes in the state of Rajasthan. Directorate of Horticulture

Solar business opportunities in Rajasthan

 

 

 

 

 

Presentation coverage

1. General scenario

2. Convergence: Irrigation vis a vis Solar energy

3. Initiatives in Rajasthan

4. Implementation

5. Technology & Achievements

 

Solar insolation in India

 

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.

 

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)

 

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

 

Rajasthan: Water & Energy the most crucial resources
Renewable Energy in Agriculture sector: the dire need

  • Irrigation Water
  • Area 10.5% - water resource only 1%
  • One third of the cultivated area under
  • irrigation
  • About 70% area is irrigated by wells & tube
  • wells (ground water) and 27 % by canals
  • Irrigation efficiency (sandy soils) low: 25-
  • 35%
  • Rainfall: Erratic, uneven distribution and low
  • (Av. 575 mm)
  • Ground water table going down rapidly and
  • quality of water deteriorating

 

  • Conventional Energy
  • Present generation capacity 9646 MW
  • Present Agriculture consumption 38%
  • Long queue for connections
  • Electricity losses during transmission and distribution

Rajasthan: Water & Energy the most crucial resources)
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

 

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 /

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

OpenChannels

50-60%

0.5-1m

Depends on
local conditions

Sprinkler

70%

10-20m

Yes

Trickle/ drip

85%

1-2m

Yes

 

 Vision: Solar Pump Project

1. Alternative for conventional energy in Agriculture sector

2. Long waiting queue for new electric connections avoided (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

                                           

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

 

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

SOLAR WATER PUMPING PROGRAMME 2011-12
FOR HI-TEC
H 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

Assistance pattern


Total Subsidy : 86% of base rate

JLNNSM/ MNRE          : 30% of unit cost
RKVY : 56% of unit cost

Mode of implementation
District-wise targets

                 


S.
No.

District

Target

Appli
cation

Adm
Sancti
on

1

1 Alwar

60

35

16

2

Bhilwara

30

42

30

3

Bikaner

270

515

270

4

Chittorgarh

30

30

30

5

Dholpur

35

30

0

6

Ganganagar

425

946

425

7

Hanumangar

250

342

250

8

8 Jaipur

90

118

51

9

Jaisalmer

40

146

40

10

Jhalawar

120

34

 

11

Jhunjhunu

40

40

5

12

Jodhpur

40

173

40

13

Kota

40

60

5

14

Nagour

40

41

31

15

S. Madhopur

40

55

12

16

Sikar

50

58

31

 

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


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


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


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
  • Financial sanction for eligible cases Subsidy DD to supplier

 

Base rate and subsidy for SPV solar pumps in Rajasthan2011-12

Item

Details

Base Rate

Total Subsidy
(86 %)

Farmers Share
(14 %)

2200
wp

3000
wp

2200
wp

3000
wp

2200
wp

3000
wp

With Manual
Tracker

Surface pump
20 m head

376500

537000

323790

461820

52710

75180

Submersible pump
20 m head

389900

560300

335314

481858

54586

78442

Submersible pump
50 m head

395800

562300

340388

483578

55412

78722

With Auto
Tracker

Surface pump
20 m head

414500

570000

356470

490200

58030

79800

Submersible pump
20/ 50 m head

418000

570000

359480

490200

58520

79800

 

Photovoltaic pumping system specifications


Motor pump/
Configuration

Output
(m³/day)

Head (m)

Outlet
Dia. (Inch)

Est. Area
Orchard
(ha)

System
Price
Rs. lac

Surface motor
pump 1800 wp

187

10

2.5

3
(low head)

3.05

Surface motor
pump 2200 wp

223

10

2.5

4
(low head)

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

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..

 

Solar and electric systemsComparison

 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) asagainst electric system (Cost Rs.12.24 lac

 


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


Solar pumps: benefit over electric systems Analysis)


S.No.

Details :

Cost input 25 yr

Per ha /yr

1

11 kW Sub Station Structure Cost { Structure, GO&DO and LA}

90000

 

2

 25 kVA transformer with meter cost

40000

 

3

11 KV Line per consumer assuming 5 pole average requirement

55000

 

 

Sub total :

185000

 

4

Amount being charged from consumer by Discom for 5HP Connection @2500/- per HP::

12500

 

A

Net Government financial load for connection :

172500

 

Establishment cost for 25 years @ 10% per year

431250

3450

5

Calculation of Indirect Electricity tariff subsidy financial load per consumer on Government :

 

8625

(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 1223906 24478
years period : A B

1223906

24478

C

Solar subsidy (86% of cost Rs.8.48 lac)

729280

14586

C

Saving of subsidy over electricity / ha/ year

 

9893

Saving against Potential per year 5000 ha (2500 pumps)

 

49462625

 

 

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.

 

Solar Photovoltaic (PV) pump operateddrip 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


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


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

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3 Comments

  • aathmika
    aathmika -

    Good Harita !Keep it up.Lots of relevant information.
    Like

  • vijaychakrawar
    vijaychakrawar -

    Dear Friends,
    Here you observe that base rates are too high, so the solar entrepreneurs will get much profit.
    Also  another thing I observed that head is too low, as in Rajasthan  its too high , so my doubt is how it will be useful to farmers?  But the share of farmer is very low so its  beneficial to farmer at least He will get solar panels which can be useful for other applications.
    Like

  • thomachen
    thomachen -

    Real China Supplier of MPPT VFD solar inverter for 3ph Pump (CE available for MNRE 80% subsidy) only with solar panels to run pumps or other 3 phase motors! pls contact solarinverter(@)126.com (Please send us Email to mark which power and quantity you need, thanks!) Like

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