TEST REPORT. No. AR 13 TEST 089 Rev.3 13/0167. Cat. 0

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The test results indicated in this paper are exclusively referred to the described sample/s and in the specified conditions of measure. Any other extension of the results to other sample/s or other conditions of measure are to be

considered outside to the scope of this document.

The partial replication of the present test report is forbidden if it is not authorized in writing by Albarubens S.r.l To check the authenticity of this test report, see website: www.albarubens.it, authentication section.

This document supersedes Test report No. AR13TEST089-Rev.2 issued on 2014/01/10

ALBARUBENS Srl

Via Gaudenzio Ferrari 21/N 21047 Saronno (VA) – Italy

Issue date: February 13, 2014

Head of the Laboratory

Eng. Giuseppe Terzaghi

LAB N° 0951

TEST REPORT

No. AR 13 TEST 089 – Rev.3

13/0167

Cat. 0

Standard EN 12975-2: 2006

Thermal solar systems and components – Solar collectors – Part 2: Test methods

Issued to:

Eclipse Italia srl

C.so Venezia, 3

20121 Milano – Italy

Sample/s description:

Manufacturer

:

Eclipse Italia srl

25078 Nozza di Vestone – Loc.Merlaro (BS) – Italy

Model/Type reference

:

Twinsun

Test result:

Pass

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Test Report No. : AR 13 TEST 089 – Rev.3

Test performed by : _{Eng. Giuseppe Terzaghi / Fabio Zapparata / Daniel Frascoli}

Written by : Dr. Marina Cancellier, Ph.D. Verified by : Eng. Giuseppe Terzaghi Approved by : Eng. Giuseppe Terzaghi Issued date [YYYY/MM/DD] : 2014/02/13

Summary of testing:

Tests performed (name of test and test clause): 5.2 Internal pressure tests for absorbers

5.3 High-temperature resistance test 5.4 Exposure test

5.5 External thermal shock test 5.6 Internal thermal shock test 5.7 Rain penetration test 5.9 Mechanical load test 5.10 Impact resistance test 5.11 Final inspection

6.1 Thermal performance testing of liquid heating collectors

Testing location: Albarubens srl

via Consorziale Saronnino, 70/20-22 21040 Origgio (VA) – Italy

Copy of marking plate: Not present

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a) b) c)

d) e)

Figure 2: Detail view of the module: a) J-box, b) PV, c) grounding mark, d) water outlet, e) connections and “Do not disconnect underload” mark

GENERAL INFORMATIONS Abbreviations used in the report:

Manufacturer’s Specification: MS

Mean temperature of heat transfer fluid [°C]: tm

Ambient or surrounding air temperature [°C]: Ta or ta

Global hemispherical solar irradiance [Wm-2] G* Reduced temperature difference (= (tm – Ta)/G*) [m

2

KW-1]: T*m

Zero-loss collector efficiency (η at T*m = 0), reference to T*m: η0

Heat loss coefficient [Wm-2K-1]: a1

Temperature dependence of the heat loss coefficient [Wm-2K-2]: a2

Absorber area of collector [m2]: AA

Aperture area of collector [m2]: Aa

Gross area of collector [m2]: AG

Specific heat capacity of heat transfer fluid [Jkg-1K-1]: cf

Data not provided by the customer n.d.

Collector incidence angle modifier Kθ

Possible test case verdicts:

- test case does not apply to the test object ... : N/A - test object does meet the requirement ... : Pass (P) - test object does not meet the requirement ... : Fail (F)

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Testing:

Date of receipt of test item [YYYY/MM/DD] ... : 2013/06/21

Date (s) of performance of tests [YYYY/MM/DD] ... : Start 2013/06/27 – End 2014/02/12

General remarks:

This report shall not be reproduced except in full without the written approval of the testing laboratory. The test results presented in this report relate only to the item(s) tested.

Any additional text/description/comment, reported in “Supplementary information *”, refers to opinions and interpretations, not accredited by ACCREDIA.

"(see remark #)" refers to a remark appended to the report. "(see Annex #)" refers to an annex appended to the report. "(see appended table)" refers to a table in the Test Report. “(*)” refers to not accredited by ACCREDIA.

Description of test item construction: TECHNICAL SPECIFICATIONS REFERRED TO THE THERMAL PART OF THE MODULE IN THE PVT SYSTEM ISSUED BY THE APPLICANT

Sample ... : Random sampling from production Prototype submitted by client Applicant’s name ... : Eclipse Italia srl

License Holder ... : Eclipse Italia srl Manufacturer ... : Eclipse Italia srl Trade Mark ... : Eclipse Italia Srl Brand name ... : Twinsun

Ratings

Max working temperature [°C] ... : n.d. Max working pressure [bar] ... : n.d. Rated (recommended) flow rate [l/m2h] ... : n.d.

Collector

Manufacturer ... : CGA Technologies Model ... : Twinsun evolution one

Collector type ... :

Glazed flat plate

Vacuum tube – Heat pipe single glass tube Vacuum tube – Heat pipe double glass tube Vacuum tube – U tube

Vacuum tube – filled with water Without covering – Unglazed

Other: Hybrid Photovoltaic Thermal Module (PVT) Serial product ... : YES / NO

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Operating pressure [kPa] ... : 300 Stagnation temperature at 1000 W/m2 and

30°C ambient temperature [°C] ... : 85 Collector mounting ... : H -V Support metal frame material (if any) ... : Any Number of collectors ... : n.d. Gross length [mm] ... : 1662 Gross width [mm] ... : 998 Gross height [mm] ... : 45 Gross area [m2] ... : 1,66 Aperture area [m2] ... : 1,58 Absorber area [m2] ... : 1,58 Weight empty [kg] ... : 31 Weight without glazing [kg] ... : 31 Fluid capacity [l]... : 1 Number of covers ... : n.d.

Cover material ... : Polietilene + film Aluminium Cover thickness [mm] ... : n.d.

Cover solar transmittance [%] ... : n.d. Absorber material ... : Aluminium Absorber’s dimensions [mm x mm x mm] .. : 1630x966 Absorber dry weight [kg] ... : 8.5 Absorber – Fin width [mm] ... : n.d. Absorber – Fin thickness [mm] ... : 2 Solar absorptance α ... : n.d. Hemispherical emittance ε ... : n.d. Surface treatment... : n.d. Construction type ... : n.d. Number of risers ... : n.d. Riser diameter or dimensions [mm] ... : n.d. Distance between risers [mm] ... : n.d. Back thermal insulation thickness [mm] ... : 20 Side thermal insulation thickness [mm] ... : n.d.

Insulation material ... : Polipropilene + film aluminium Casing material ... : Aluminium

Sealing material ... : n.d. Other limitations ... : n.d. Comments on collector design ... : Any

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Heat transfer medium ... : Water-propylene glycol mixture (% of the mixture: < 30) Alternative acceptable heat transfer fluids . : Any

Test item particulars

Accessories and detachable parts included in the evaluation ... : --

Options included ... : Tested with photovoltaic circuit loaded near the maximum power (PV-ON)

Components list

Item Supplier Item code Notes – Material

Glass n.d. n.d. n.d.

Absorber sheet n.d. n.d. n.d.

Manifold tubes n.d. n.d. n.d.

Absorber tubes n.d. n.d. n.d.

Collector insulation n.d. n.d. n.d.

Collector back sheet n.d. n.d. n.d.

Collector frame n.d. n.d. n.d.

Tape sealant n.d. n.d. n.d.

Supplementary information *: We certify that Eclipse Italia srl has improved the absorber area of the TWINSUN hybrid system from 1.51 m2 to 1.574 m2 in the meantime of the testing, which corresponds to approximately an increase of 4.3% of the absorbing surface (see Annex # 4).

Due to this consideration, the amount of thermal energy will be greater, hence also the performance of the hybrid system increases proportionally.

In relazione ai test termici appena conclusi sui moduli ibridi TWINSUN di Eclipse Italia srl, con assorbitore da 1,51 mq di superficie, attestiamo che la stessa Eclipse Italia s.r.l. ha nel frattempo provveduto a migliorare l’assorbitore portando le dimensioni dello stesso a circa 1,574 mq di superficie che corrisponde a circa il 4,3% di superficie captante in più (vedi Annex # 4).

In conseguenza a quanto sopra anche la quantità di energia termica, quindi la performance del sistema ibrido aumenta in modo proporzionale.

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Description of test item construction: BILL OF MATERIALS AND DESIGN PARAMETERS REFERRED TO THE PHOTOVOLTAIC PART OF THE MODULE

MODULE TYPE/S

Model designation ... : TWINSUN _250P Module dimensions (l x w x h) [mm] ... : 1663 x 998 x 45 Module area [m²] ... : 1,66

Module weight [Kg] ... : 21

SOLAR CELL

Cell type technology... : Poly

Cell manufacturer/model ... : Webel Solar Cell manufacturing location ... : India Cell dimensions L x W [mm] ... : 156 x 156 Cell thickness [µm] ... : From 180 to 220 Cell area [cm²] ... : 243,36

IDENTIFICATION OF MATERIALS

Front cover ... : Temperated Glass Front manufacturer/model/thickness ... : Interfloat / CONE 4mm Front max temperature [°C] ... : n.d.

Rear cover ... : Polyester

Rear cover manufacturer/model/thickness ... : Effegidi – 50/190/100 PPE Rear max temperature [°C]... : n.d.

Encapsulant type ... : EVA – Ultra fast cure Encapsulant manufacturer/model ... : STRE – 15420P/UF Frame type/material ... : Anodized Alluminium Frame manufacturer ... : MM automotive Adhesive for frame ... : Double-sided tape Adhesive manufacturer/model ... : TESA 4957 Adhesive for junction box ... : Silicon

Adhesive manufacturer/model ... : Dow Corning 744 Potting material, if any ... : None

Internal wiring dimension between cells ... : 0,15 x 2 mm Internal wiring dimension between strings ... : 0,25 x 7 mm

Soldering material ... : Sn96,5 – Ag3,5(Lead Free)

Soldering material manufacturer/model ... : Schlenk Metalfolien L-Sn96,5-Ag3,5 Other ... : None

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IDENTIFICATION OF COMPONENTS

Junction box type/manufacturer ... : 1740971-2 Tyco Electronics Junction box voltage and current rating [V, A] ... : 1000V. 13A

Junction box intended for use with conduit? ... : No

Junction box max temperature [°C] ... : 85°C ambient temperature Cable ... : Solar grade 4mmq

Cable voltage and current rating [V, A] ... : 1000V

Connector ... : Tyco Electronics Connector voltage and current rating [V, A] ... : 1000V

Cables and connectors max temperature [°C] ... : 85°C ambient temperature

Bypass diode type/manufacturer ... : AMP-Schottky Bypass Diode SL1515

Bypass diode rating [A] ... : 15

Bypass diode max junction temperature [°C]... : 200°C Bypass diode Thermal resistance from junction to leads (RTHJL) [°C/W] ... : n.d. Bypass diode Thermal resistance from junction to case (RTHJC) [°C/W] ... : n.d. MODULE DESIGN – MINIMUM DISTANCES Minimum distances Between cells ... : 2mm Minimum distances Between cell and edge of laminate ... : 25

Minimum distances Between any current carrying part and edge of laminate ... : 15

MODULE DESIGN – ELECTRICAL CONFIGURATION Total number of cells... : 60

Serial-parallel connection of cells ... : 60

Cells per bypass diode ... : 20

No. of bypass diodes ... : 3

Sample/s identification:

Lab. identification codes Serial Number Date when manufactured

2013403 13413783 n.d.

2013309 13407371 n.d.

2013401 13413785 n.d.

2013402 13413784 n.d.

Supplementary information *: Sample # 2013401 and # 2013402 are involved in the PV retesting point “e” of the IECEE “Retest Guidelines”.

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Record of test sequence and summary of main results:

EN 12975-2 – Thermal solar systems and components – Solar collectors – Part 2: Test methods

Clause Requirement + Test Date [YYYY/MM/DD] Results – Remarks Verdict

Start End

5.2 Internal pressure for absorbers 2013/09/17 2013/09/17 See table 1 P 5.3 High temperature resistance 2013/09/13 2013/09/13 See table 2 P

5.4 Exposure test 2013/06/27 2013/09/17 See table 3 P

5.5 External thermal shock First 2013/09/17 2013/09/17 See table 4 P Second 2014/01/25 2014/01/25 5.6 Internal thermal shock First 2013/09/13 2013/09/13 See table 5 P Second 2014/01/26 2014/01/26

5.7 Rain penetration test 2013/09/17 2013/09/17 See table 6 P

5.8 Freeze resistance test -- -- Not performed N/A

5.9 Mechanical load test 2013/09/17 2013/09/17 See table 8 P 5.10 Impact resistance test

(optional) 2013/09/17 2013/09/17 See table 9 P 5.11 Dismantling final inspection 2013/09/17 2013/09/17 See table 10 P 6.1 Thermal performance testing 2013/06/27 2013/09/17 See table 11 --

2014/02/12 2014/02/12 Supplementary information *:

SPECIAL REQUIREMENT FOR PERFORMANCE DETERMINATION OF PVT COLLECTORS (Note: Text according to Decision D7.M10)

For Solar Keymark certification of PVT collectors, the measurements of the thermal performance shall be performed with electrical production under MPP conditions. In addition, an optional thermal performance determination without electrical production (open circuit for PV-Module) is possible.

For the electrical load applied for the electrical production an appropriate solution for the MPP tracking shall be used.

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§ 5.2 TAB. 1: Internal pressure for inorganic absorbers

Sample # ...: 2013403 Test installation ...: Outdoor

Indoor Maximum allowed working pressure MS [kPa] ...: n.d.

Test conditions ... :

Test ambient temperature [°C] --

Test pressure [kPa] 600

Test duration [min] 15

Results Potential failure Failure

occurred Verdict

Absorber leakage P

Deformation such to establish permanent contact

between absorber and cover P

Breaking or permanent deformation of collector fixing

points or collector box P

Vacuum loss P

Accumulation of humidity in form of condensate on the inside of the transparent cover of the collector exceeding 10% of the aperture area

P

Other: P

Remarks: No failure observed Supplementary information *: none

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§ 5.3 TAB. 2: High temperature resistance

Sample # ...: 2013403 Test installation ...: Outdoor

Indoor – Solar simulator

Test conditions ... :

Collector tilt angle [°] N/A

Average irradiance [W/m2] 978

Average surrounding air temperature [°C] 23.3

Average surrounding air speed [m/s] 0.23

Average absorber temperature [°C] 54.7

Duration of test [min] 60

Calculated collector stagnation temperature [°C] 62.1

Absorber leakage P

Vacuum loss P

P

Other: P

Additional information required if an evacuated tubular collector was tested

The temperature of the collector was measured at the location shown below:

Additional information required if the absorber temperature was measured using a special fluid

The collector was partially filled with and the average pressure was Pa, which corresponds to the average absorber temperature of °C.

Remarks: The module was mounted on a tracker during the test. Supplementary information *: none

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§ 5.4 TAB. 3: Exposure test

Sample # ...: 2013309

Collector tilt [°] ... : N/A – The module was mounted on a tracker Collector azimuth [°] ... : N/A – The module was mounted on a tracker Total days in which H > 14 MJ/m2 ... : 30

Total hours with G > 850 W/m2, air temperature > 10°C .... : 30 Supplementary information *: none

(Inspection after exposure test)

Collector fluid loop

Potential problems Evaluation1 Verdict

Swelling of pipes and components N/A N/A

Fluid leakages N/A N/A

Cracking N/A N/A

Warping N/A N/A

Corrosion N/A N/A

Collector

Cracking/ warping/ corrosion/ rain penetration of the collector box/ fasteners 0 P

Cracking/ adhesion/ elasticity of the seals/ gaskets 0 P

Cracking/ crazing/ buckling/ delamination/ warping/ outgassing of the cover/

reflector 0 P

Cracking/ crazing/ blistering of the absorber coating 0 P

Deformation/ corrosion/ leakage/ loss of bonding of the absorber tubes and

headers 0 P

Deformation/ corrosion of the absorber mountings 0 P

Water retention/ outgassing/ degradation of the thermal insulation 0 P

Mounting structure

Strength/ Safety 0 P

Safety equipment

Loss of function/ Safety N/A N/A

1

Evaluation scale: 0 – No problem

1 – Minor problem (requirement apart from testing not fulfilled) 2 – Severe problem (requirements for testing not fulfilled) N/A – Inspection to established the condition was not possible Supplementary information *: none

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§ 5.5 TAB. 4: External thermal shock test

Sample # ... : 2013403 Test installation ... : Outdoor

Indoor Test combined with exposure test ... :

Test combined with high temperature resistance test ... :

Shock n°: 1 2

Test conditions... :

Collector tilt angle [°] 45 45

Average irradiance [W/m2] 959 986

Minimum irradiance [W/m2] 958 945

Average air temperature [°C] 24.8 11

Minimum air temperature [°C] 24.6 10

Preconditioning period [min] 66 66

Absorber temperature before spraying [°C] 63.2 50.5

Flow rate of water spray [l/min] 5.5 5.5

Temperature of water spray [°C] 24.9 24.9

Duration of water spray [min] 5 5

Absorber leakage P

Vacuum loss P

P

Other: P

Remarks: No failure detected Supplementary information *: none

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§ 5.6 TAB. 5: Internal thermal shock test

Indoor Test combined with exposure test ... :

Test combined with high temperature resistance test ... :

Shock n°: 1 2

Collector tilt angle [°] 45 45

Average irradiance [W/m2] 963 988

Minimum irradiance [W/m2] 913 956

Average air temperature [°C] 27.8 12

Minimum air temperature [°C] 27.7 10

Preconditioning period [min] 138 138

Absorber temperature before flowing [°C] 81.8 69.4 Flow rate of heat transfer fluid [l/min] 2.7 2.6 Temperature of heat transfer fluid [°C] 25.0 25.0

Duration of flow [min] 5 5

Absorber leakage P

Vacuum loss P

P

Other: P

Remarks: No failure detected Supplementary information *: none

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§ 5.7 TAB. 6: Rain penetration test

Indoor Collector mounted on ... : Open frame

Simulated roof Method used to keep the absorber warm ... : Hot water circulation

Exposure of collector to solar irradiation

Collector tilt angle [°] 45

Water flow rate [kg/(s)] 0.06

Temperature of heat transfer fluid [°C] 27

Duration of water spray [h] 4

Water penetration P

Absorber leakage P

Vacuum loss P

P

Other: P

Remarks: No rain penetration and No failure detected Supplementary information *: none

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§ 5.9 TAB. 8: Mechanical load test

Sample # ... : 2013401

Positive pressure test of the collector cover Method used to apply positive pressure to the

cover ... :

Loading with gravel or similar material Loading with water

Suction cups

Pressurisation of collector cover

Test conditions ... : Maximum pressure load [Pa] 2400 Supplementary information *: none

Negative pressure test of fixings between the cover and the collector box Method used to apply negative pressure to the

cover ... :

Suction cups

Pressurisation of collector box

Test conditions ... : Maximum pressure load [Pa] N/A Supplementary information *: Not performed

Negative pressure test of collector mountings Method used to apply negative pressure to the

cover ... :

Loading with gravel or similar material Loading with water

Suction cups

Pressurisation of collector cover

Test conditions ... : Maximum pressure load [Pa] 2400 Supplementary information *: none

Absorber leakage P

Vacuum loss P

P

Other: P

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§ 5.10 TAB. 9: Impact resistance test (optional)

Indoor Collector orientation... : Vertical

Horizontal Test method used ... : Steel ball

Ice balls

Absorber leakage P

Vacuum loss P

P

Other: P

Supplementary information *: Test parameters from §10.17 of IEC 61215 Ice ball size [mm]: 25 (avg)

Ice ball weight [g]: 7.53 (avg) Ice ball velocity [m/s]: 23 (avg) Number of impact locations: 11 Remarks: Impact Locations

Shot Location

01 A corner of the module window, not more than 50mm from the frame

02 Edge of the module, not more than 12mm from the frame

03 Over edges of cells, near an electrical joint

04 Over edges of cells, near an electrical joint

05 Over points of minimum spacing between cells

06 Over points of minimum spacing between cells

07 On the module window, not more than 12mm from one of the points at which the module is

fixed to the supporting structure

08 On the module window, not more than 12mm from one of the points at which the module is

fixed to the supporting structure

09 On the module window, at points farthest from the points selected above

10 On the module window, at points farthest from the points selected above

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§ 5.11 TAB. 10: Final inspection

Sample # ...: 2013403 / 2013309 / 2013401 / 2013402

Collector loop pipes

Swelling of pipes and components N/A N/A

Fluid leakages N/A N/A

Cracking N/A N/A

Warping N/A N/A

Corrosion N/A N/A

Water retention/ outgassing/ degradation of the insulation N/A N/A

Collector

Potential problems/failures Evaluation1 Verdict Cracking/ warping/ corrosion/ rain penetration of the collector box/ fasteners 0 P

Cracking/ adhesion/ elasticity of the seals/ gaskets 0 P

Cracking/ crazing/ buckling/ delamination/ warping/ outgassing of the cover/

reflector 0 P

Cracking/ crazing/ blistering of the absorber coating 0 P

Deformation/ corrosion/ leakage/ loss of bonding of the absorber tubes and

headers 0 P

Deformation/ corrosion of the absorber mountings 0 P

Water retention/ outgassing/ degradation of the thermal insulation 0 P

Mounting structure

Strength/ Safety 0 P

Safety equipment

Loss of function/ Safety 0 P

1

Evaluation scale: 0 – No problem

1 – Minor problem (requirement apart from testing not fulfilled) 2 – Severe problem (requirements for testing not fulfilled) N/A – Inspection to established the condition was not possible Supplementary information *: none

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§ 6.1 TAB. 11: Thermal performance for glazed solar collectors

Sample # ... : 2013309

Test method ... : 6.1 Outdoor – Steady state 6.1 Indoor – Steady state 6.3 Outdoor – Quasi dynamic

Indoor

Mean solar irradiance [W/m2] ... : -- Type of the lamps ... : --

Shading of longwave radiation ... : yes / no

Outdoor

Latitude/ Longitude ... : 45°36’27.028” N / 9°1’26.486” E

Collector tilt [°] ... : N/A – The module was mounted on a tracker Collector azimuth ... : N/A – The module was mounted on a tracker Orientation of absorber tubes during testing

(horizontal or vertical) ... : Vertical

Power output per collector unit [W]

Tm – Ta in K Irradiance [W/m2] 400 700 1000 10 157.7 275.9 394.2 30 47.6 83.3 119 50 32.2 56.3 80.4

Note: The reported values are for normal incidence. Instantaneous efficiency curve:

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Reference area ... : Reference area: Aperture area Aa

Reference area: Absorber area AA

Absorber area (used for curve) [m2] ... : 1.501 Aperture area (used for curve) [m2] ... : 1.6 Fluid flow rate used for the test [l/min] ... : 1.82 Gross collector area [m2] ... : --

Supplementary information *: The instantaneous efficiency is defined by:

Second order fit to data:

Conversion factor µ0A / µ0a ... : 0.62 (Based on Absorber Area / Aperture Area)

Heat transfer coefficient a1A / a1a [W/(m 2

K)] ... : – 25.6 (Based on Absorber Area / Aperture Area) Temp. dependent heat transfer coefficient a2A /

a2a [W/(m 2

K2)] ... : 295.6 (Based on Absorber Area / Aperture Area)

Specific Peak power [Wpeak/m 2

] ... : 620.4 Peak power (G = 1000 W/m2) per collector unit [Wpeak] ... : 992.6 Incidence Angle Modifier (IAM) at 50° ... : 0.96

Observed Failures (major failure, defined in 5.3.1 of EN 12975-1: 2006) if any ... : none Supplementary information *:

For PVT module, the IAM shall be determined only for angle of incidence of 50°C.

Compared to modules under test, we have verified that Eclipse Italia srl has increased by 4.3% the surface of the absorber now equal to 1,574 square meters (1630 x 966 mm). Therefore we can estimate that the majority recovered energy from the absorber, increases in a proportional way the peak power that passes from 620.4 W measured to approximate 647.1 W.

Rispetto ai moduli sottoposti a test, abbiamo verificato che Eclipse Italia srl ha aumentato del 4,3 % la superficie dell'assorbitore ora pari a 1,574 mq (1630 x 966 mm). Possiamo stimare quindi che la maggior energia recuperata dall'assorbitore, faccia aumentare in modo proporzionale la potenza di picco che passa dai 620,4 W rilevati, ad approssimativi 647,1 W.

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List of Annexes

Annex 1: List of measurement equipment

Annex 2: Statement of the estimated uncertainty of the test results Annex 3: Model to be included in the test report

Annex 4: New absorber drawing area

Annex 1: List of measurement equipment

Description Identification # Application

Astronomic tracker 4.109 5.2, 5.3, 5.4

Cart for hydraulic test 6.85 5.2

Manometer 20 bar 3.32 5.2

Rain test fixture 4.127 5.5, 5.7

Portable timer 4.118 5.7 Dynamometer 5.7 5.7 Mechanical load 4.70/4.76 5.9 Marking gauge 3.45 5.9 Hail launcher 4.38 5.10 Freezer 4.43 5.10 Digital caliper 3.40 5.10

Small weighing scale 5.12 5.10

Camera 6.68 5.10

Thermal console 4.126 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 6.1

Annex 2: Statement of the estimated uncertainty of the test results

The measurement uncertainties stated in this document have been determined according to EA-4/02. they were estimated as expanded uncertainty obtained multiplying the standard uncertainty by the coverage factor k corresponding to a confidence level about 95%. Normally, this factor k is 2.

Annex 3: The photovoltaic modules with the models

Tested type Cell number Cell size [mm] Module size [mm] Cell technology Rated power [W] TWINSUN_250P 60 156 x 156 1663 x 998 Poly 250

* Extended PVT module type without need of re-testing (according to IECEE “Retest Guidelines”): Type * Cell number Cell size [mm] Module size [mm] Cell technology Rated power [W] TWINSUN_XXXP 60 156 x 156 1663 x 998 Poly 230-265 TWINSUN_XXXP 48 156 x 156 1350 x 998 Poly 165-210 TWINSUN_XXXP 36 156 x 156 1506 x 687 Poly 110-155

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