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WAFERS, CELLS & MODULES

The inception of Maharishi Solar Technology (P) Limited (MST) in 1999 was the birth of mission-A mission to harness solar energy for the benefit of one and all . since then, MST now an ISO 9001:2000 accredited company, has come of ages .

With an in house R&D team of strong professionals, a dedicate team of engineers and support staff, we have been producing world - class multi-cryrtalline Sillicon ingots, Wafers, Mono/Multi crystalline Silicon PV cells, regular & customized SPV modules and other SPV systems, at our state-of -the -art, vertically integrated manufacturing facility at Mruthyunjaya Purma, Andhra Pradesh . Our strong nationwide presence ensures a reliable & prompt after sales service .

After all, it's all about living upto the trust of millions worldwide, who trust us for our impecable track record in solar energy .

Technical Specifications

1.

Multicrystalline Silicon Solar Wafers:

Multicrystalline Silicon Wafers : 125mm sq.
(Type No. MUW-125)

Technical Specification
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Multicrystalline Silicon Wafers
125mm x 125mm 		Type No:MUW-125
MultiCrystalline Silicon wafers for Solar Cells Production
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1.0.     Physical Characteristics :
1. Material : Multi Crystalline Silicon
2. Technique of Ingot Formation : Casting by Heat Exchange Method
3. Type : P Type due to Boron
4. Resistivity : 0.5 to 5.0 Ohm-cm
5. Wafering Technique : Wire Sawing
6. Wafer Shape : Square
7. Wafer Size : 125± 0.5mm x 125± 0.5 mm
8. Wafer Corners : Shamffered
9. Wafer Thickness : 325± 25 microns
10. TTV : £ 40 microns
11. BOW : £ 80 microns
12. Wafer surface Condition : As Sawed and Cleaned
13. Saw Mark Depth : £ 15 microns
14. LifeTime : 2-8 microseconds
15. Impurities
Carbon : < 5 x 1016 atoms/c.c.
Oxygen : < 1 x 1018 atoms/c.c.
16. Packing : In stacks or according to customer requirement
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Wafers, Cells & Modules
Maharishi Solar Technology MULTICRYSTALLINE
SILICON WAFERS
Maharishi Solar Technology MULTICRYSTALLINE
SILICON SOLAR CELLS
Maharishi Solar Technology MONOCRYSTALLINE
SOLAR CELLS
Maharishi Solar Technology SOLAR
PHOTOVOLTIC
MODULES
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SPV Appliances
Maharishi Solar Technology SOLAR LANTERNS
Maharishi Solar Technology SOLAR HOME
LIGHTING SYSTEMS
Maharishi Solar Technology SOLAR STREET
LIGHTS
Maharishi Solar Technology SOLAR FANS
Maharishi Solar Technology SOLAR DESERT
COOLERS
Maharishi Solar Technology SOLAR WATER
PUMPS
Maharishi Solar Technology SOLAR POWER
PLANTS
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  SOLAR THERMAL PRODUCT/SYSTEM DETAILS
Maharishi Solar Technology SINGLE & DOUBLE GLAZED
FLAT PLATE COLLECTOR
Maharishi Solar Technology DOMESTIC SOLAR
WATER HEATER
Maharishi Solar Technology LARGE SCALE
SOLAR WATER HEATER
Maharishi Solar Technology SOLAR
COOLING SYSTEM
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2 :

 Multicrystalline Silicon Solar Cells:

Technical Specification

Multicrystalline Silicon Solar Cells 125 mm x 125 mm
(Type No. MUC-125)

1.0.     Physical Characteristics :

1.1.

Material

:

CASTED, P type (Boron doped) silicon

1.2.

Wafer

:

Multicrystalline silicon wafer

1.3.

Base resistivity

:

0.5 to 5.0 ohm.cm

1.4.

Surface Condition

:

As cut, Nitride passivated

1.5.

Shape

:

Square

1.6.

Size

:

125 x 125 + 0.5 mm

1.7.

Area

:

156.25 sq.cm

1.8.

Thickness

:

325 + 25 microns

1.9.

Electrical Contacts

:

Front Grid structure, Screen printed silver,
busbar width:1.5 mm

Back: Screen Printed Ag Al Busbar 5.5 mm Width and Al. Backsurface field

Electrical Specification

Multicrystalline Silicon Solar Cells 125 mm x125 mm
Cell Area = 156.25 Sq. Cm
(Type No. MUC-125)

Parameter

GRADES Power output (Pmax) Meas uring Volt age (Vm) Current at Vm (0.460V) Short Circuit Curr ent(Isc) Open Circuit Voltage (Voc) Conv. Effici ency (n)% Fill Factor (FF)
  Watt Volts Amp Amp Volt ----- -----

G01

 2.15-2.11 0.46 4.67-4.57 4.66 0.61 13.63 0.75

G02

 2.10-2.06 0.46 4.56-4.46 4.55 0.61 13.34 0.75

G03

 2.05-2.01 0.46 4.45-4.35 4.57 0.60 13.00 0.74

G04

 2.00-1.96 0.46 4.34-4.25 4.46 0.60 12.67 0.74

G05

 1.95-1.91 0.46 4.24-4.14 4.48 0.59 12.35 0.73

G06

 1.90-1.81 0.46 4.13-3.92 4.31 0.59 11.87 0.73

G07

 1.80-1.71 0.46 3.91-3.70 4.2 0.58 11.23 0.72

G08

 1.70-1.61 0.46 3.69-3.48 3.96 0.58 10.59 0.72

G09

 1.60-1.51 0.46 3.47-3.27 3.78 0.57 10.00 0.71

G10

 1.50-1.41 0.46 3.26-3.06 3.54 0.57 9.31 0.71

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Note :
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1. s Listed parameters are measured under standard test conditions (1000W/m2 air-mass 1.5 solar irradiance and 25 degree C cell temperature with 2% absolute accuracy).Tolerance on electrical specification is +/- 5%.
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2. All Solar cells are individually tested and grouped into the specified grades.
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3. Suitability : (a) G01 &G02 are suitable for 75 Wp-80Wp Modules. Using Toughened Glass with total transmissivity ³ 91%.
G03, Grade Cells are suitable for 74Wp, 37Wp Modules. G05 are suitable for 70Wp/35Wp Modules. Using Toughened Glass with total transmissivity ³ 91%.
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4. These are Nitride passivated cells.

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3 Monocrystalline Silicon Solar Cells:

Technical Specification

Monocrystalline Silicon Solar Cells 125 mm PSQ
(Type No. MOC-125)

1.0.     Physical Characteristics :

1.1. Material : CZ grown P type (Boron doped) silicon
1.2. Wafer : Single crystal silicon wafer
1.3. Base resistivity : 0.5 to 5.0 ohm.cm
1.4. Surface Condition : As cut, Textured and Nitride passivated
1.5. Shape : Pseudo Square
1.6. Size : 125 + 0.5 mm PSQ
1.7. Area : 148.5 sq.cm
1.8. Thickness : 325 + 25 microns
1.9. Orientation : < 100 > + 3 degrees
2.0. Electrical Contacts : Front Grid structure, Screen printed silver, busbar width:1.5 mm

Back: Screen Printed Ag Al Busbar 5.5mm
Width and Al. Backsurface field


Electrical Specification

Monocrystalline Silicon Solar Cells 125 mm PSQ
(Type No. MOC-125)

Parameter

GRADES

Power output (Pmax)

Measuring voltage (Vm)

Current at Vm (0.460V)

Short Circuit Current (Isc)

Open Circuit Voltage (Voc)

Conv. Efficiency (n)%

Fill Factor (FF)
 

Watt

Volts

 Amp

Amp

Volt

.....

.....

SG1

2.50-2.46

0.46

 5.43-5.33

5.51

0.60

16.70

0.75

SG2

2.45-2.41

0.46

 5.32-5.28

5.40

0.60

16.36

0.75

SG3

2.40-2.36

0.46

 5.27-5.11

5.37

0.595

16.03

0.745

SG4

2.35-2.31

0.46

 5.10-5.01

5.26

0.595

15.69

0.745

SG5

2.30-2.26

0.46

 5.00-4.90

5.23

0.59

15.35

0.74

SG6

2.25-2.21

0.46

 4.89-4.79

5.11

0.59

15.02

0.74

SG7

2.20-2.16

0.46

 4.78-4.68

5.08

0.585

14.68

0.735

G01

2.15-2.11

0.46

 4.67-4.57

4.97

0.585

14.34

0.735

G02

2.10-2.06

0.46

 4.56-4.46

4.92

0.58

14.01

0.73

G03

2.05-2.01

0.46

 4.45-4.35

4.80

0.58

13.67

0.73

G04

2.00-1.96

0.46

 4.34-4.25

4.71

0.58

13.33

0.725

G05

1.95-1.91

0.46

 4.24-4.14

4.60

0.58

13.00

0.725

G06

1.90-1.81

0.46

 4.13-3.92

4.47

0.575

12.46

0.72

G07

1.80-1.71

0.46

 3.91-3.71

4.23

0.575

11.78

0.72

G08

1.70-1.61

0.46

 3.70-3.48

4.04

0.575

11.11

0.71

G09

1.60-1.51

0.46

 3.47-3.27

3.80

0.575

10.44

0.7

G10

1.50-1.41

0.46

 3.26-3.06

3.61

0.575

9.76

0.69

Note :

1. Listed parameters are measured under standard test conditions (1000W/m2 air-mass 1.5 solar irradiance and 25 degree C cell temperature with 2% absolute accuracy).
Tolerance on electrical specification is +/- 5%.
2. All Solar cells are individually tested and group into the specified grades.
3. Selection grade (SG) cells (2.16 Wp and above) can be supplied on specific request.
4.
Suitability s : s

(a)
  

s SG7 & above grade cells for 80Wp modules. Using Toughened Glass with total Transmissivity ³ 91%.
s
    (b) G01, G02 cells for 75Wp, 34Wp Modules. G03 & G04 for 70Wp/35Wp Modules. Using Toughened Glass with total transmissivity ³ 91%.
5. These are Nitride passivated cells.
   
 

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4.

Solar Photovoltic Modules :
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MAHARISHI Solar photovoltaic modules are aesthetically designed for long life and continuous
performance under extreme conditions, for numerous Domestic, industrial and commercial applications.

FEATURES:

  • Thirty-six Multicrystalline / Monocrystalline solar cells connected in series with redundant

  • Interconnects. 150 watts module contains seventy-two cells .

  • Laminate enclosed in a non-corroding aluminum edge frame anodized to 18 microns.

  • Electrical output of module shall be terminated in a weather-proof junction box

  • Superstrate construction with toughened glass top surface to withstand winds up to 250Kms/hour.

  • Protection against moisture ingress for the solar cells by lamination.

  • Provision for mounting of modules on a mechanical structure shall be provided on specific demand.

ELECTRICAL & MECHANICAL FEATURES:

    Electrical output of Maharishi solar modules is classified on the basis of the electrical output produced by the solar modules under light intensity conditions of 1000 W / m , AM1.5 spectral irradiance and at 25 C.
    The electrical characteristics are typical and subject to production variance, however peak power is the
    minimum value.
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Solar module Model no.

Nom-  inal Peak power (in Watts)

Voc (in volts)

Isc  (ina mps)

Vmax (in volts)

I 16.4
or
I8.2 (in volts)

Physical Dimenssion  (Length x Width x Depth)

Weight   (inkgs)
MOM/MUM BD06

5W
10.5
0.73
8.20
0.61
447x159x17/22
1.2 kg
MOM/MUM BD12

5W
21.0
0.36
16.4
0.30
447x159x17/22
1.2 kg
MOM/MUM CF12

8W
21.0
0.58
16.4
0.49
443x290x22
1.8 kgs
MOM/MUM CG12

10W
21.0
0.73
16.4
0.61
443x290x22
1.8 kgs
MOM/MUM DG12

10W
21.0
0.73
16.4
0.61
637x294x22
2.3 kgs
MOM/MUM CH12

12W
21.0
0.85
16.4
0.73
443x290x22
1.8 kgs
MOM/MUM BH12

12W
21.0
0.85
16.4
0.73
637x294x22
2.3 kgs
MOM/MUM EB12

18W
21.0
1.31
16.4
1.10
540x450x22/38.5
3.2 kgs
MOM/MUM EC12

20W
21.0
1.45
16.4
1.22
540x450x22/38.5
3.2 kgs
MOM/MUM HB12

35W
21.0
2.56
16.4
2.13
973x436x38.5
5.0 kgs
MOM/MUM GC12

37W
21.0
2.6
16.4
2.26
640x540x38.5
4.4 kgs
MOM/MUM HC12

37W
21.0
2.6
16.4
2.26
973x436x38.5
5.0 kgs
MOM/MUM JE12

50W
21.0
3.6
16.4
3.05
828x540x38.5
5.3 kgs
MOM/MUM LE12

50W
21.0
3.6
16.8
3.05
1066x540x38.5
6.8 kgs
MOM/MUM LF12

55W
21.0
3.90
16.4
3.35
1066x540x38.5
7.2 kgs
MOM/MUM LG12

60W
21.0
4.00
16.4
3.66
1066x540x38.5
7.2 kgs
MOM/MUM NC12

70W
21.0
5.12
16.4
4.27
1209x540x38.5
7.8 kgs
MOM/MUM ND12

74W
21.0
5.26
16.6
4.51
1209x540x38.5
7.8 kgs
MOM/MUM NE12

75W
21.0
5.30
17.0
4.57
1209x540x38.5
7.8 kgs
MOM/MUM NF12

80W
21.0
5.70
17.0
4.88
1209x540x38.5
7.8 kgs
MOM/MUM QC12

100W
21.0
7.00
17.0
6.09
1483x665x50
12.5 kgs
MOM/MUM QE12

120W
21.0
7.60
17.0
7.32
1483x665x50
12.5 kgs
MOM/MUM TD12

150W
21.0
10.60
16.5
9.15
1239x1070x50
15.3 kgs
MOM/MUM TD24

150W
42.0
5.30
33.0
4.57
1239x1070x