2 MM HIGH PERFORMANCE

FULLY TEMPERED SOLAR GLASS

WOR

LD’S

FIRS

T

Bi-facial modules deliver upto 30% more power

Increased module life upto 40 years

Higher reliability - reduced rate of module failure

Use laminated modules as a roof itself

Easier installation

Substitutes traditional roofing sheet

ONE TECHNOLOGY MANY ADVANTAGES

MECHANICAL STRENGTH

Low iron high transmission fully tempered solar glass

NEW

2.0 MM

2.5 MM

2.8 MM

Minimum 90 Mpa as per EN 12150-1:2015.Glass-to-glass modules made with fully tempered 2.0 MM glass can withstand High wind loads > 2400 Pa Snow loads > 5400 Pa.

PRODUCT

STANDARD

3.2 MM

4.0 MM

FRAGMENTATION PATTERN OF 2 MM GLASS

BOROSIL fully tempered glass

Normal heat strengthened glass

Tempered glass has a breakage of small particles, that are much safer than the large and sharp pieces resulting from a broken lite of heat strengthened glass which qualifies it asa safety glass for BIPV, rooftops and claddings.

Front glass

Encapsulation foil

OPV

Edge sealing

Encapsulationfoil

Rear glass

ADVANTAGES OF GLASS-TO-GLASS MODULE

Superior edge sealing

Long term durability with no power losses

Glass-to-glass module is 700 times more water vapor diffusion tight. PV cells in

glass-to-glass modules are best protected against moisture and difficult environment

conditions as under:

Tropic climate conditions with high humidity and temperature

Salt water on the modules and high UV radiation

Mechanical forces due to twisting of the platform

Glass-to-glass 2 MM + 2 MM PVB

NoNo

Yes -5% -10%

Glass-to-glass 3.2 MM + 3.2 MM TPO Butyl -2% -1%No

Glass-to-glass 2 MM + 2 MM PVB Butyl No 0% 0%

Glass-to-glass 2 MM + 2 MM EVA No -3% -3%

Tedlar EVA No Yes -5% -10%

Tedlar EVA

No

Yes -20% -65%

Type - Backside Lamination

foilEdge

sealingFrame After

2000hAfter

3000h

Butyl

Conformity CertificateISO 14001:2004

ISO 9001:2008from TUV Rheinland

Conformity Certificate BS OHSAS 18001:2007

Certificate of Constancy of Performance (CE Mark)

TÜV Rheinland Nederland B.V.

Headoffice: Westervoortsedijk 73 NL - 6827 AV Arnhem P.O. Box 2220 NL - 6802 CE Arnhem

Location Leek: Eiberkamp 10 NL - 9351 VT Leek P.O. Box 37 NL - 9350 AA Leek

info@nl.tuv.com www.tuv.com/nl

Tel. +31 (0)88 888 7 888 Fax +31 (0)88 888 7 879

TÜV Rheinland Nederland B.V. is a registered company at the Dutch Chamber of Commerce under number 2728878

VAT number: NL815820380B01 IBAN: NL61DEUT0265155096

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Test report

Report number 89212424-02-rev.1

Date 1 March 2018

Author(s) R. Brandhorst

Client Gujarat Borosil Ltd. Govali, Ankleshwar Rajpipala Road Jhagadia Taluka, Dist. : Bharuch Gujarat, INDIA, 393001

Project number 89212424

Project name 17.A217 - EN12600

Number of pages 9

All rights reserved.

' 2010 TÜV Rheinland Nederland B.V.

Test report relating to a glass product according to European standardEN 12600, Pendulum test for flat glass, concerning the product markedas: Low iron solar textured glass thickness 2.8, 2.5 and 2.0mm,manufactured by: Gujarat Borosil LTD.

No part of this report may be reproduced, provided to and/or examined by third parties, and/or published by print,photoprint, microfilm, in electronic form or any other means without the explicit previous written consent of TÜVRheinland Nederland B.V.

In case this report was drafted within the context of an assignment to TÜV Rheinland Nederland B.V, the rightsand obligations of contracting parties are subject to the General Terms & Conditions for Advisory, Research andCertification assignments to TÜV Rheinland Nederland B.V and/or the relevant agreement concluded between thecontracting parties.

Product Information

Product: Low Iron Solar Textured Tempered Glass

Panel Number

Thickness (mm)

1 2.5 2 2.5 3 2.0 4 2.8

Panel Quantity

Sample Dimensions

in (l x w) cm (l x w)

4 66.9 x 39.4 169.9 x 100.1

Test Equipment and Instrumentation

Testing performed in the laboratory was conducted at ambient conditions.

Please refer to Appendix I for equipment and instrumentation information and calibrationdates.

www.westpak.com

83 Great Oaks Boulevard San Jose CA 95119 Phone: 408.224.1300

10326 Roselle Street San Diego CA 92121 Phone: 858.623.8100

GUJARAT BOROSIL LIMITED

HAIL IMPACT TESTING

of the Low Iron Solar Textured Tempered Glass

Report No. 119-17-3030A, Rev 1

Proposal No. 48989, Revision B

Customer Information

Gujarat Borosil Limited M.V. Ramana Ankaleshwar Rajpipla Road, Govali(Vill), Jhagadia (Tq), Bharuch, 393001 Gujarat State

Laboratory Information

Test engineers: Eric Lau and Andrew Test dates: Westpak™ laboratory: San Jose, California

WESTPAK™ is accredited to ISO 17025 General Competence for Testing and Calibration Laboratories, and registered to ISO 9001Q uality Management. Please visit http://www.westpak.com/page/quality/quality-certificates for WESTPAK, Inc.’s ISO 17025 Scope of Accreditation.

Eskildsen; Westpak™January 22, 2018 through February 1, 2018

Purpose of Testing

Test Input Standard Referenced Inspections

Hail Impact

Acceptance criteria are specified by Clause 10.17 of IEC 61215, Edition 2.0.

The purpose of testing was to verify that the Equipment Under Test (EUT): Low IronSolar Textured Tempered Glass was capable of withstanding hailstone impacts. Four(4) units were subjected to the following test input:

IEC 61215, Edition 2.0, Clause 10.17 During Test

Results and Observations

Test Input Observations Appendix

Hail Impact No major visual defects, as specified by Clause 10.17 of IEC61215, Edition 2.0, were observed on the glass sheets as aresult of this test input.

II

TÜV Rheinland Nederland B.V.

Headoffice:Westervoortsedijk 73NL - 6827 AV ArnhemP.O. Box 2220NL - 6802 CE Arnhem

Location Leek:Eiberkamp 10NL - 9351 VT LeekP.O. Box 37NL - 9350 AA Leek

info@nl.tuv.comwww.tuv.com/nl

Tel. +31 (0)88 888 7 888Fax +31 (0)88 888 7 879

TÜV Rheinland Nederland B.V. is a registered company at the Dutch Chamber of Commerce under number 2728878

VAT number: NL815820380B01IBAN: NL61DEUT0265155096

® T

ÜV

, T

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V a

nd T

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Test report

Test report relating to a glass product according to European standard EN 12150-1, fragmentation and mechanical strength, concerning the product marked as: Low iron solar textured glass thickness 2.8, 2.5 and 2.0mm, manufactured by: Gujarat Borosil LTD.

Report number 89212424-01

Date 7 December 2017

Author(s) R. Brandhorst

Client Gujarat Borosil Ltd.Govali, Ankleshwar Rajpipala RoadJhagadia Taluka, Dist. : BharuchGujarat, INDIA, 393001

Project number 89212424

Project name

17.A217 -

EN12150

Number of pages 10

All rights reserved.

No part of this report may be reproduced, provided to and/or examined by third parties, and/or published by print, photoprint, microfilm, in electronic form or any other means without the explicit previous written consent of TÜV Rheinland Nederland B.V.

In case this report was drafted within the context of an assignment to TÜV Rheinland Nederland B.V, the rights and obligations of contracting parties are subject to the General Terms & Conditions for Advisory, Research and Certification assignments to TÜV Rheinland Nederland B.V and/or the relevant agreement concluded between the contracting parties.

© 2010 TÜV Rheinland Nederland B.V.

Conformity of Performance EN 12150-1Fragmentation & Mechanical

Strength (2.0, 2.5 and 2.8 mm)

Conformity of Performance EN 12600 Drop Pendulum test (2.0, 2.5 and 2.8 mm)

Conformity of PerformanceIEC 61215 Hail Stone Resistance (2.0, 2.5 and 2.8 mm)

Technical Specifications (2.0 mm)

GUJARAT BOROSIL LIMITED DOC. NO: SG/QP/8/02 ANNX-3B ISSUE NO. / DATE: 01 / 26.03.2018

SPECIFICATION FOR LOW IRON SOLAR TEXTURED GLASS for 2.0 mm – (TEMPERED)

REV. NO: 00 REV. DATE: -

Parameters Test Method / Standard Specification

DIMENSIONS, PHYSICAL AND EDGE QUALITY Dimensional (L x W) mm As per Specified Dimensions Dimensional Tolerance (L x W) mm Vernier Caliper ± 1.5 mm Nominal Thickness (mm) Disc Micrometer (ø 20mm) 2.1 mm ± 0.2 mm Density of Glass Sink & Float method 2.5 kg/cm

3 (Typical)

Angularity (maximum difference in diagonal lengths in mm )

Vernier Caliper Maximum 3 mm

Corner Cut (Tape) Magnifying glass with scale Min – 1.0 mm, Max - 4.0 mm

Edge Processing Visual At least Seamed

Shells (Max: L x W x D) Magnifying glass with scale 12 mm x 2 mm x 1 mm

General Bow EN 12150-1:2015 4.0 mm / M

Roller Wave distortion with a dimension > 600 mm measured at right angles to the wave and roller waves

EN 12150-1:2015 0.5 mm / 300 mm

Light Transmittance Tv EN 410 (D65), 380 – 780 nm,AM 1.5

≥ 91.5%

Surface Roughness Ra Value Avg. SJ-210 Mitutoyo 0.40 – ≤ 2.5 µm Iron content In Glass (PPM) AAS ≤ 120 PPM Fragment particles (test area of 50 x 50 mm) EN 12150-1:2015 Min. 15 pcs

Longest fragment particle: 100 mm

Mechanical Strength ( N/ mm² ) EN 12150-1 : 2015 > 90 N/ mm²

GLASS QUALITY

Test criteria (EN 572 – 5 : 2012 / 5.2.1)

The glass pane to be examined is illuminated in conditions approximating to diffuse light and is observed in front of a matt grey screen

Place the pane of Glass to be examined vertically 3 m in front of parallel to a matt grey screen. Arrange the point of observation 1.5m from the glass, keeping the direction of observation normal to the glass surface.

Remark – Governing Specification EN 572-5

Spherical bubbles/core/solid inclusions per m2

Diameter Max Allowed

≤ 0.5 mm > 0.5 - ≤ 1.5 mm > 1.5 - ≤ 3.0 mm

> 3.0 mm

Unlimited

6

2

0

Longitudinal bubbles per m2

Length ≤ 10 mm

> 10mm -

≤ 25 mm >25 mm

Width < 1 mm

Width > 1.0 - ≤ 2.0 mm Width > 2.0 mm

4

2

0

2

0

0

0

0

0

Scratches per m2

Length ≤ 5.0 mm

> 5.0 mm–

≤ 10.0 mm > 10.0 mm - ≤ 25 mm

Width < 1.0 mm

Width > 1.0 mm 4

0 2

0 1

0

Cleanliness Irremovable dirt is not permitted

Open Blister Not allowed on Flat Surface

Note: In addition to above

a) Scratches on pattern side are allowed.

b) Scratches, rubbing marks and dirt within 5mm of the border on both side permitted.

c) Pattern aberrations at isolated locations are permitted.

Technical Specifications(2.5 mm)

GUJARAT BOROSIL LIMITED DOC. NO:

SG/QP/8/02 ANNX-3C

ISSUE NO. / DATE: 01

/ 26.03.2018

SPECIFICATION FOR LOW IRON SOLAR TEXTURED

GLASS for 2.5 mm – (TEMPERED) REV. NO:

00

REV. DATE: -

Parameters Test Method / Standard Specification

DIMENSIONS, PHYSICAL AND EDGE QUALITY

Dimensional (L x W) mm As per Specified Dimensions

Dimensional Tolerance (L x W) mm Vernier Caliper ± 1.5 mm

Nominal Thickness (mm) Disc Micrometer (ø 20mm) 2.5 mm ± 0.2 mm

Density of Glass Sink & Float method 2.5 kg/cm3 (Typical)

Angularity (maximum difference in diagonal lengths in mm )

Vernier Caliper Maximum 3 mm

Corner Cut (Tape) Magnifying glass with scale Min – 1.0 mm, Max - 4.0 mm

Edge Processing Visual At least Seamed

Shells (Max: L x W x D) Visual Tape 12 mm x 2 mm x 1 mm

General Bow EN 12150-1:2015 4.0 mm / M

Roller Wave distortion with a dimension > 600 mm measured at right angles to the wave and roller waves

EN 12150-1:2015 0.5 mm / 300 mm

Light Transmittance Tv EN 410 (D65), 380 – 780 nm,AM 1.5

≥ 91.5%

Surface Roughness Ra Value Avg. SJ-210 Mitutoyo 0.40 – ≤ 2.5 µm Iron content In Glass (PPM) AAS ≤ 120 PPM Fragment particles (test area of 50 x 50 mm) EN 12150-1:2015 Min. 15 pcs

Longest fragment particle: 100 mm Mechanical Strength ( N/ mm² ) EN 12150-1 : 2015 > 90 N/ mm²

GLASS QUALITY

Test criteria (EN 572 – 5 : 2012 / 5.2.1) The glass pane to be examined is illuminated in conditions approximating to diffuse light and is observed in front of a matt grey screen Place the pane of Glass to be examined vertically 3 m in front of parallel to a matt grey screen. Arrange the point of observation 1.5m from the glass, keeping the direction of observation normal to the glass surface.

Remark – Governing Specification EN 572-5

Spherical bubbles/core/solid inclusions per m2 Diameter Max Allowed ≤ 0.5 mm

> 0.5 - ≤ 1.5 mm > 1.5 - ≤ 3.0 mm

> 3.0 mm

Unlimited 6 2 0

Longitudinal bubbles per m2 Length ≤ 10

mm

> 10mm - ≤ 25 mm

>25 mm

Width < 1 mm Width > 1.0 - ≤ 2.0 mm Width > 2.0 mm

4 2 0

2 0 0

0 0 0

Scratches per m2 Length ≤ 5.0

mm

> 5.0 mm– ≤ 10.0 mm

> 10.0 mm - ≤ 25 mm

Width < 1.0 mm Width > 1.0 mm

4 0

2 0

1 0

Cleanliness Irremovable dirt is not permitted Open Blister Not allowed on Flat Surface Note: In addition to above

a) Scratches on pattern side are allowed.

b) Scratches, rubbing marks and dirt within 5mm of the border on both side permitted.

c)

Pattern aberrations at isolated locations are permitted

Technical Specifications(2.8 mm)

GUJARAT BOROSIL LIMITED DOC. NO:

SG/QP/8/02 ANNX-3D

ISSUE NO. / DATE: 01

/ 26.03.2018

SPECIFICATION FOR LOW IRON SOLAR TEXTURED

GLASS for 2.8 mm –

(TEMPERED)

REV. NO:

00

REV. DATE: -

Parameters

Test Method / Standard

Specification

DIMENSIONS, PHYSICAL AND EDGE QUALITY

Dimensional (L x W) mm As per Specified Dimensions

Dimensional Tolerance (L x W) mm Vernier Caliper ± 1.5 mm

Nominal Thickness (mm) Disc Micrometer (ø 20mm) 2.8 mm ± 0.2 mm

Density of Glass Sink & Float method 2.5 kg/cm3 (Typical)

Angularity (maximum difference in diagonal lengths in mm )

Vernier Caliper Maximum 3 mm

Corner Cut (Tape) Magnifying glass with scale Min – 1.0 mm, Max - 4.0 mm

Edge Processing Visual At least Seamed

Shells (Max: L x W x D) Magnifying glass with scale 12 mm x 2 mm x 1 mm

General Bow EN 12150-1:2015 4.0 mm / M

Roller Wave distortion with a dimension > 600 mm measured at right angles to the wave and roller waves

EN 12150-1:2015 0.5 mm / 300 mm

Light Transmittance Tv EN 410 (D65), 380 – 780 nm,AM 1.5

≥ 91.5%

Surface Roughness Ra Value Avg. SJ-210 Mitutoyo 0.40 – ≤ 2.5 µm Iron content In Glass (PPM) AAS ≤ 120 PPM Fragment particles (test area of 50 x 50 mm) EN 12150-1:2015 Min. 15 pcs

Longest fragment particle: 100 mm Mechanical Strength ( N/ mm² ) EN 12150-1 : 2015 > 90 N/ mm²

GLASS QUALITY

Test criteria (EN 572 – 5 : 2012 / 5.2.1) The glass pane to be examined is illuminated in conditions approximating to diffuse light and is observed in front of a matt grey screen Place the pane of Glass to be examined vertically 3 m in front of parallel to a matt grey screen. Arrange the point of observation 1.5m from the glass, keeping the direction of observation normal to the glass surface.

Remark – Governing Specification EN 572-5

Spherical bubbles/core/solid inclusions per m2 Diameter Max Allowed ≤ 0.5 mm

> 0.5 - ≤ 1.5 mm > 1.5 - ≤ 3.0 mm

> 3.0 mm

Unlimited 6 2 0

Longitudinal bubbles per m2 Length ≤ 10

mm

> 10mm - ≤ 25 mm

>25 mm

Width < 1 mm Width > 1.0 - ≤ 2.0 mm Width > 2.0 mm

4 2 0

2 0 0

0 0 0

Scratches per m2 Length ≤ 5.0

mm

> 5.0 mm– ≤ 10.0 mm

> 10.0 mm - ≤ 25 mm

Width < 1.0 mm Width > 1.0 mm

4 0

2 0

1 0

Cleanliness Irremovable dirt is not permitted Open Blister

Not allowed on Flat Surface

Note: In addition to above

a) Scratches on pattern side are allowed.

b) Scratches, rubbing marks and dirt within 5mm of the border on both side permitted.

c)

Pattern aberrations at isolated locations are permitted

Technical Specifications(ARC)

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