Test Report. File No.: SHV01023/16 Test Report No.: Taizhou, Zhejiang , P.R. China

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2 Applicant... : Manufacturer... : Order No.... : Zhejiang ERA Solar Technology Co., Ltd. Sihai Road, Huangyan Economic Development Zone Taizhou, Zhejiang , P.R. China Zhejiang ERA Solar Technology Co., Ltd. Sihai Road, Huangyan Economic Development Zone Taizhou, Zhejiang , P.R. China QT- SHV01023/16 Date of Application... : 01/25/2016 Product... : Crystalline Silicon Photovoltaic Modules Module type(s)... : PV Modules with 6" Poly-crystalline Silicon Solar Cell : General Information ESPMCxxx (xxx= , in steps of 5, 72cells) ESPMCxxx (xxx= , in steps of 5, 60cells) Maximum System Voltage... : Application Class... : Electrical Protection Class... : Type of examination... : DC 1000V Class A Class II Conformity testing with TÜV mark Testing Period... : 02/25/ /29/2016 Testing Laboratory... : National Center of Supervision & Inspection on Solar Photovoltaic Products Quality Suite A-10F, No. 5 Xinhua Road, Wuxi New District Wuxi City, Jiangsu Province, , P.R. China Test results listed in this test report refer exclusively to the mentioned test sample. Partly copying is not permitted without explicit agreement of the owner. The submitted test samples as described in the reports hereunder are in compliance with the requirements: IEC Draft (82/685/NP) System Voltage Durability Test for Crystalline Silicon Modules - Qualification and Type Approval PV-F-023 TRF Page 2 of 28 Version 1.2

3 List of contents List of contents... 3 History of certification... 4 Summary of testing... 5 General remarks... 6 General product information... 7 Module type: ESPMC Testing procedure... 8 Module type: ESPMC Module group assignment Module type: ESPMC Test result overview Module type: ESPMC Test results Module type: ESPMC Visual inspection (initial) Maximum power determination (initial) Insulation test (initial) Wet leakage current test (Initial) MST13 Ground continuity test (initial) B Voltage stress in damp heat chamber with negative bias voltage C Voltage stress in damp heat chamber with positive bias voltage Annex 1: Constructional Data Form (CDF) Annex 2: List of measurement equipment Annex 3: Statement of the estimated uncertainty of the test results Annex 4: Photos Module type: ESPMC PV-F-023 TRF Page 3 of 28 Version 1.2

4 History of certification File no.... : N/A Certificate no... : N/A Date of issue... : N/A Report no.... : N/A Module type... : N/A Description:... : N/A Supplementary information: Basic project, no history of certification. PV-F-023 TRF Page 4 of 28 Version 1.2

5 Summary of testing According to the enquiry of the applicant, a qualification testing and certification was performed according to IEC Draft (82/685/NP). Module type ESPMC300 was selected as representative test samples and was conducted with all the related test, the test temperature has been increased from 60 C to 85 C. All tests were successfully completed. Therefore, from the result of testing and factory inspection, it is recommended that certification should be granted. Detailed product information are to be found in the CDF (constructional data form) in Annex 1 of this report. PV-F-023 TRF Page 5 of 28 Version 1.2

6 General remarks Test item particulars: Accessories and detachable parts included in the evaluation... : Options included... : Abbreviations used in the report: DH - Damp Heat Impp - Maximum power current Isc - Short circuit current Pmpp - Maximum power Abbreviations used in the report: Test case does not apply to the test object... : Test object does meet the requirement... : Test object does not meet the requirement... : Other Remarks: N/A N/A STC - Standard Test Conditions Vmpp - Maximum power voltage Voc - Open circuit voltage FF - Fill factor Not Applicable (N/A) Pass (P) Fail (F) The test verdicts presented in this report relate only to the object tested. This report shall not be reproduced, except in full, with the written approval of the issuing testing laboratory. (see Annex #) refers to additional information appended to the report. (see Table #) refers to a table appended to the report. Throughout this report a point is used as the decimal separator. PV-F-023 TRF Page 6 of 28 Version 1.2

7 General product information Module type: ESPMC300 Product Electrical Ratings at STC: Nominal maximum power (Pmax) [W]...: 300 Nominal open circuit voltage at (Voc) [V]...: Nominal maximum power voltage (Vmpp) [V]...: 37.0 Nominal short circuit current at (Isc) [A]...: 8.70 Nominal maximum power current (Impp) [A]...: 8.11 Product Safety Ratings: Maximum system voltage [V]...: 1000 Maximum over-current protection rating [A]...: 15 Application Class...: Safety class in accordance with IEC : Fire safety Class...: Class A Class II N/A PV-F-023 TRF Page 7 of 28 Version 1.2

8 Testing procedure Module type: ESPMC300 Random sampling from production Prototype submitted by client PV-F-023 TRF Page 8 of 28 Version 1.2

9 TEST SEQUENCE 5 Modules Preconditioning 10.1/MST 01 Visual Inspection 10.2 Maximum Power Determination 10.3/MST 16 Insulation Test / Dielectric Withstand Test 10.15/MST 17 Wet Leakage Current Test MST 13 Ground Continuity Test A B C 6 Voltage Stress in Damp Heat Chamber with negative bias voltage 1 6 Voltage Stress in Damp Heat Chamber with positive bias voltage /MST 01 Visual Inspection 10.1/MST 01 Visual Inspection 10.2 Maximum Power Determination 10.2 Maximum Power Determination 10.3/MST 16 Insulation Test / Dielectric Withstand Test 10.3/MST 16 Insulation Test / Dielectric Withstand Test 10.15/MST 17 Wet Leakage Current Test 10.15/MST 17 Wet Leakage Current Test Remark: 1. With positive voltage terminal of power source connected to the grounding hole of frame. 2. With negative voltage terminal of power source connected to the grounding hole of frame PV-F-023 TRF Page 9 of 28 Version 1.2

10 Module group assignment Module type: ESPMC300 Sample # Group ID Sample SN Dimension (w x l x h) Remark 1 A AM mm x 992mm x 45mm REF 2 C AM mm x 992mm x 45mm Positive bias voltage 3 C AM mm x 992mm x 45mm Positive bias voltage 4 B AM mm x 992mm x 45mm Negative bias voltage 5 B AM mm x 992mm x 45mm Negative bias voltage PV-F-023 TRF Page 10 of 28 Version 1.2

11 Clause Requirement + Test Result - Remark Verdict Test result overview 4 Marking - P - Name, monogram or symbol of manufacturer : Printed on nameplate P - Type or model number...: Printed on nameplate P - Serial number...: Attached separately beside the nameplate P - Polarity of terminals or leads... : Marked with color P - Maximum system voltage... : 1000VDC P - The date and place of manufacture... : Traceable from serial number P - Initial examination All modules P 10 Preconditioning... : Performed by manufacturer N/A 10.1 / MST 01 Visual inspection... : See table 10.1 P 10.2 Maximum power determination... : See table 10.2 P 10.3 / MST 16 Insulation test / Dielectric withstand test... : See table 10.3 P / MST 17 Wet leakage current test... : See table P MST 13 Ground continuity test... : See table MST13 P Module type: ESPMC300 Group A 1 Module See Group ID A N/A Group B 2 Modules Sample Group ID B P 6 Voltage stress in damp heat chamber with negative bias voltage... : See table 6B P 10.1 / MST 01 Visual inspection... : See table 6B P 10.2 Maximum power determination... : See table 6B P 10.3 / MST 16 Insulation test / Dielectric withstand test... : See table 6B P / MST 17 Wet leakage current test... : See table 6B P Group C 2 Modules Sample Group ID C P 6 Voltage stress in damp heat chamber with positive bias voltage... : See table 6C P 10.1 / MST 01 Visual inspection... : See table 6C P 10.2 Maximum power determination... : See table 6C P 10.3 / MST 16 Insulation test / Dielectric withstand test... : See table 6C P / MST 17 Wet leakage current test... : See table 6C P PV-F-023 TRF Page 11 of 28 Version 1.2

12 IEC Clause Requirement + Test Result - Remark Verdict Test results Module type: ESPMC Visual inspection (initial) - Test date [MM/DD/YYYY]... : 02/25/ Sample # Nature and position of initial findings comments or attach photos - 1 No visual defects P 2 No visual defects P 3 No visual defects P 4 No visual defects P 5 No visual defects P Supplementary information: N/A - PV-F-023 TRF Page 12 of 28 Version 1.2

13 IEC Clause Requirement + Test Result - Remark Verdict 10.2 Maximum power determination (initial) - Test date [MM/DD/YYYY]... : 02/25/ Module temperature [ C]... : Corrected to 25 - Irradiance [W/m 2 ]... : Corrected to Sample # Voc [V] Vmpp [V] Isc [A] Impp [A] Pmpp [W] FF [%] Supplementary information: N/A - PV-F-023 TRF Page 13 of 28 Version 1.2

14 IEC Clause Requirement + Test Result - Remark Verdict 10.3 Insulation test (initial) Test date [MM/DD/YYYY]... : 02/25/ Test voltage applied [V]... : 2 minutes of 1000 and 1 minute of Sample # Required [MΩ] Measured [MΩ] Dielectric breakdown? >1000 No P >1000 No P >1000 No P >1000 No P >1000 No P Supplementary information: Minimum requirement according to the standard is 40MΩ m 2. Area of the module is 1.94m PV-F-023 TRF Page 14 of 28 Version 1.2

15 IEC Clause Requirement + Test Result - Remark Verdict Wet leakage current test (Initial) - Test date [MM/DD/YYYY]... : 02/25/ Test voltage applied [V]... : 2 minutes of Solution resistivity [Ω cm] / < : 762 P Solution temperature [ C] / 22±3... : 19.4 P Sample # Required [MΩ] Measured [MΩ] >1000 P >1000 P >1000 P >1000 P >1000 P Supplementary information: Minimum requirement according to the standard is 40MΩ m 2. Area of the module is 1.94m 2. - PV-F-023 TRF Page 15 of 28 Version 1.2

16 IEC Clause Requirement + Test Result - Remark Verdict MST13 Ground continuity test (initial) - Test date [MM/DD/YYYY]... : 02/25/ Maximum over-current protection rating [A]... : 15 - Current applied [A]... : Location of designated grounding point... : The center of one longer side - Sample # Location of 2 nd contacting point Resistance [Ω] - 1 The center of the other longer side The center of one shorter side The center of the other shorter side 2 The center of the other longer side The center of one shorter side The center of the other shorter side 3 The center of the other longer side The center of one shorter side The center of the other shorter side 4 The center of the other longer side The center of one shorter side The center of the other shorter side 5 The center of the other longer side The center of one shorter side The center of the other shorter side P P P P P Supplementary information: Maximum allowed resistance according to the standard is 0.1Ω. - PV-F-023 TRF Page 16 of 28 Version 1.2

17 IEC Clause Requirement + Test Result - Remark Verdict 6B Voltage stress in damp heat chamber with negative bias voltage - Test date [MM/DD/YYYY] / start - end... : 02/25/ /29/ Sample #... : 4, 5 - Total duration [hour]... : 96 - Chamber air temperature [ C ]... : 85 - Chamber relative humidity [%]... : 85 - Applied Voltage [V]... : Supplementary information: With positive voltage terminal of power source connected to the grounding hole of frame Visual inspection after test - - Test date [MM/DD/YYYY]... : 02/29/ Sample # Nature and position of initial findings comments or attach photos - 4 No visual defects P 5 No visual defects P Supplementary information: N/A Maximum power determination after test - Test date [MM/DD/YYYY]... : 02/29/ Module temperature [ C]... : Corrected to 25 - Irradiance [W/m 2 ]... : Corrected to Sample # Voc [V] Vmpp [V] Isc [A] Impp [A] Pmpp [W] FF [%] Pmpp degradation after test [%] / 5.. : Sample # 4: Sample # 5: P Supplementary information: N/A Insulation test after test - Test date [MM/DD/YYYY]... : 02/29/ Test voltage applied [V]... : 2 minutes of 1000 and 1 minute of Sample # Required [MΩ] Measured [MΩ] Dielectric breakdown? >1000 No P >1000 No P Supplementary information: Minimum requirement according to the standard is 40MΩ m 2. Area of the module is 1.94m 2. - PV-F-023 TRF Page 17 of 28 Version 1.2

18 IEC Clause Requirement + Test Result - Remark Verdict Wet leakage current test after test - Test date [MM/DD/YYYY]... : 02/29/ Test voltage applied [V]... : 2 minutes of Solution resistivity [Ω cm] / < : 799 P Solution temperature [ C] / 22±3... : 19.6 P Sample # Required [MΩ] Measured [MΩ] >1000 P >1000 P Supplementary information: Minimum requirement according to the standard is 40MΩ m 2. Area of the module is 1.94m 2. - PV-F-023 TRF Page 18 of 28 Version 1.2

19 IEC Clause Requirement + Test Result - Remark Verdict 6C Voltage stress in damp heat chamber with positive bias voltage - Test date [MM/DD/YYYY] / start - end... : 02/25/ /29/ Sample #... : 2, 3 - Total duration [hour]... : 96 - Chamber air temperature [ C ]... : 85 - Chamber relative humidity [%]... : 85 - Applied Voltage [V]... : Supplementary information: With negative voltage terminal of power source connected to the grounding hole of frame Visual inspection after test - - Test date [MM/DD/YYYY]... : 02/29/ Sample # Nature and position of initial findings comments or attach photos - 2 No visual defects P 3 No visual defects P Supplementary information: N/A Maximum power determination after test - Test date [MM/DD/YYYY]... : 02/29/ Module temperature [ C]... : Corrected to 25 - Irradiance [W/m 2 ]... : Corrected to Sample # Voc [V] Vmpp [V] Isc [A] Impp [A] Pmpp [W] FF [%] Pmpp degradation after test [%] / 5.. : Sample # 2: Sample # 3: P Supplementary information: N/A Insulation test after test - Test date [MM/DD/YYYY]... : 02/29/ Test voltage applied [V]... : 2 minutes of 1000 and 1 minute of Sample # Required [MΩ] Measured [MΩ] Dielectric breakdown? >1000 No P >1000 No P Supplementary information: Minimum requirement according to the standard is 40MΩ m 2. Area of the module is 1.94m 2. - PV-F-023 TRF Page 19 of 28 Version 1.2

20 IEC Clause Requirement + Test Result - Remark Verdict Wet leakage current test after test - Test date [MM/DD/YYYY]... : 02/29/ Test voltage applied [V]... : 2 minutes of Solution resistivity [Ω cm] / < : 799 P Solution temperature [ C] / 22±3... : 19.6 P Sample # Required [MΩ] Measured [MΩ] >1000 P >1000 P Supplementary information: Minimum requirement according to the standard is 40MΩ m 2. Area of the module is 1.94m 2. - PV-F-023 TRF Page 20 of 28 Version 1.2

21 Annex 1: Constructional Data Form (CDF) PV-F-023 TRF Page 21 of 28 Version 1.2

22 PV-F-023 TRF Page 22 of 28 Version 1.2

23 PV-F-023 TRF Page 23 of 28 Version 1.2

24 Annex 2: List of measurement equipment Test clause Equipment Identification Next calibration date 10.2 Pulsed solar simulator EV /20/ /MST16 Withstanding voltage / Insulation resistance tester EV /04/ Chamber TT /06/ /MST17 Power supply ES /15/2016 Withstanding voltage / insulation resistance tester ES /10/2016 EV /04/2016 MST13 Power supply ES /04/2016 DC Milliohmmeter EV /28/2016 PV-F-023 TRF Page 24 of 28 Version 1.2

25 Annex 3: Statement of the estimated uncertainty of the test results The total measuring uncertainty of Pmpp is 2.8% The total measuring uncertainty of Isc is 2.6% The total measuring uncertainty of Voc is 0.7% PV-F-023 TRF Page 25 of 28 Version 1.2

26 Annex 4: Photos Module type: ESPMC300 Front overview Back overview Label Solar cell Frame Grounding Mark Junction box (PV-JM825) Junction box (opened) PV-F-023 TRF Page 26 of 28 Version 1.2

27 N/A Bypass diode (The junction box is potted) Cable (PV1-F 1x4.0mm 2 ) Marking (Do not disconnect under load) Connectors (PV-JM601) PV-F-023 TRF Page 27 of 28 Version 1.2

EL image before voltage stress in damp heat chamber for Sample 2# EL image after voltage stress in

image after voltage stress in damp heat chamber for Sample 3# EL image before voltage stress in damp

before voltage stress in damp heat chamber for Sample 5# ---------- End of test report ---------- EL

28 EL image before voltage stress in damp heat chamber for Sample 2# EL image after voltage stress in damp heat chamber for Sample 2# EL image before voltage stress in damp heat chamber for Sample 3# EL image after voltage stress in damp heat chamber for Sample 3# EL image before voltage stress in damp heat chamber for Sample 4# EL image after voltage stress in damp heat chamber for Sample 4# EL image before voltage stress in damp heat chamber for Sample 5# End of test report EL image after voltage stress in damp heat chamber for Sample 5# PV-F-023 TRF Page 28 of 28 Version 1.2

Test Report. File No.: SHV04007/15-02 Test Report No.: , P.R. China

Test Report. File No.: SHV04007/15-02 Test Report No.: , P.R. China Applicant... : Manufacturer... : Order No.... : Zhejiang ERA Solar Technology Co., Ltd. Sihai Road, Huangyan Economic Development Zone, Taizhou, Zhejiang 318020, P.R. China Zhejiang ERA Solar Technology