SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017

SCOPE OF ACCREDITATION TO ISO/IEC 17025:2017 RETC (RENEWABLE ENERGY TEST CENTER) 46457 Landing Parkway Fremont CA 94538 Zen Villanueva Phone: 510 226 1635 SUSTAINABLE ENERGY Valid To: August 31, 2020 Certificate Number: 3038.01 In recognition of the successful completion of the A2LA evaluation process, accreditation is granted to this laboratory to perform the following testing on photovoltaic devices and products: Preconditioning IEC 61215 3 Clause 5, IEC 62108 Clause 6 Visual Inspection IEC 61215 3 Clause 10.1, IEC 61646 Clause 10.1, IEC 61730 MST 01, IEC 62108 Clause 10.1, IEC 61215 MQT 01; UL 61730 MST 01, UL 61215-2 MQT 01 UV Preconditioning / Conditioning IEC 61215 3 Clause 10.10, IEC 61646 Clause 10.10, IEC 61730 MST 54, IEC 62108 Clause 10.15, IEC 61215 MQT 10, IEC 61730 MST 54.1; UL 61730 MST 54 & MST 54.1, UL 61215-2 MQT 10 Mechanical-Related Testing Accelerated Aging UL 1703 Clause 34, UL 3703 Clause 60; ULC/ORD C1703 Clause 5.16 Cold Conditioning IEC 61730 MST 55; UL 61730 MST 55 Conduit Bending IEC 61730 MST 33 Cut Susceptibility IEC 61730 MST 12; UL 1703 Clause 24, 7 UL 61730 MST 12; ULC/ORD C1703 Clause 5. Damp Heat UL 61730 MST 53; IEC 61215 MQT 13, IEC 62108 Clause 10.7, IEC 61215 3 Clause 10.13 (1000 hr), IEC 61646 Clause 10.13 (1000 hr), IEC 61730 MST 53 (1000 hr); UL 61215-2 MQT 13 Dry Heat Conditioning IEC 61730 MST 56; UL 61730 MST 56 Final Stabilization IEC 61215 MQT 19.2 (A2LA Cert. No. 3038.01) 12/20/2018 Page 1 of 7

Mechanical-Related Testing (Cont d) Humidity / Humidity Freeze IEC 61215 3 Clause 10.12, IEC 61646 Clause 10.12, IEC 61730 MST 52, IEC 62108 Clause 10.8, IEC 61215 MQT 12; UL 61730 MST 01, UL 1703 Clause 36, UL 2703 Clause 18, UL 61215-2 MQT 12, ULC/ORD C1703 Clause 5.18 Hail Impact IEC 61215 3 Clause 10.17, IEC 61646 Clause 10.17, IEC 62108 Clause 10.9, IEC 61215 MQT 17; UL 61215-2 MQT 17; ANSI/FM 4478 Appendix E (class 4 only) Ignitibility IEC 61730 MST 24; UL 61730 MST 24 Impact UL 1703 Clause 30; ULC/ORD C1703 Clause 5.13 Initial Stabilization IEC 61215 MQT 19.1; UL 61215-2 MQT 19.1 Insulation Thickness IEC 61730 MST 04; UL 61730 MST 04 Lap Shear IEC 61730 MST 36; UL 61730 MST 36 Light Soaking IEC 61646 Clause 10.19 Marking UL 61730 MST 05, UL 1703 Clause 47; IEC 61730 MST 05; ULC/ORD C1703 Clause 7.0 Mechanical Load IEC 61215 3 Clause 10.16, IEC 61646 Clause 10.16, IEC 61730 MST 34, IEC 62108 Clause 10.13, IEC 61215 MQT 16; UL 61730 MST 34, UL 1703 Clause 41, UL 2703 Clause 21, 2 UL 3703 Clause 59, UL 61215-2 MQT 16; ULC/ORD C1703 Clause 5.23 Materials Creep IEC 61730 MST 37; UL 61730 MST 37 Module Breakage IEC 61730 MST 32; UL 61730 MST 32 Outdoor Exposure IEC 61215 3 Clause 10.8, IEC 61646 Clause 10.8, IEC 62108 Clause 10.16, IEC 61215 MQT 08; UL 61215-2 MQT 08 Rating UL 1703 Clause 46; ULC/ORD C1703 Clause 6.0 Retention on Junction Box IEC 61215 MQT 14.1; UL 61215-2 MQT 14.1 Robustness of Terminations IEC 61215 3 Clause 10.14, IEC 61646 Clause 10.14, IEC 61730 MST 42, IEC 62108 Clause 10.12; UL 61730 MST 42 (A2LA Cert. No. 3038.01) 12/20/2018 Page 2 of 7

Mechanical-Related Testing (Cont d) Peel Test IEC 61730 MST 35; UL 61730 MST 35 Push Test UL 1703 Clause 23; ULC/ORD C1703 Clause 5.6 Pre-Thermal Cycle IEC 62108 Clause 10.8.3 Screw Connections IEC 61730 MST 33; UL 61730 MST 33 Sharp Edge IEC 61730 MST 06; UL 61730 MST 06 Strain Relief UL 1703 Clause 22, UL 3703 Clause 43; ULC/ORD C1703 Clause 5.5; Terminal Box Knock Out IEC 61730 MST 44 Temperature Test IEC 61730 MST 21; UL 1703 Clause 19, UL 3703 Clause 39, UL 61730 MST 21; ULC/ORD C1703 Clause 5.2; Test of Cord Anchorage IEC 61215 MQT 14.2 Terminal Torque IEC 61215 MQT 14.3; UL 1703 Clause 29, UL 2703 Clause 14, UL 3703 Clause 60; ULC/ORD C1703 Clause 5.12; Temperature Cycling UL 1703 Clause 35, UL 2703 Clause 17; ULC/ORD C1703 Clause 5.17 Thermal Cycling IEC 61215 3 Clause 10.11, IEC 61646 Clause 10.11, IEC 61730 MST 51, IEC 62108 Clause 10.6, IEC 61215 MQT 11; UL 61730 MST 51, UL 61215-2 MQT 11 Water Spray IEC 62108 Clause 10.10; UL 1703 Clause 33; ULC/ORD C1703 Clause 5.15 Salt Fog IEC 61701, IEC 60068-2-2-52; UL 2703 Clause 19.1 Bonding Strap Pull Test UL 2703 Clause 23, UL 3703 Clause 62 Bonding Conductor Test UL 3703 Clause 22 (Part A), UL 2703 Clause 45 (Part A) Electrical-Related Testing Accessibility IEC 61730 MST 11; UL 1703 Clause 15, UL 61730 MST 11; ULC/ORD C1703 Clause 4.10 Arcing UL 1703 Clause 40; ULC/ORD C1703 Clause 5.22 (A2LA Cert. No. 3038.01) 12/20/2018 Page 3 of 7

Electrical-Related Testing (Cont d) Bonding Path Resistance UL 1703 Clause 25, UL 2703 Clause 13, UL 3703 Clause 42; ULC/ORD C1703 Clause 5.8; Bypass Diode Thermal IEC 61730 MST 25, IEC 61215 Clause 10.18, IEC 61646 Clause 10.18, IEC 62108 Clause 10.11, IEC 61215 MQT 18.1; UL 61730 MST 25, UL 61215-2 MQT 18.1 Bypass Diode Functionality IEC 61215-2 MQT 18.2, IEC 61730 MST 07; UL 61730 MST 07 Determination of Cell Temperature Using OC Voltage IEC 60904-5 Dielectric Voltage Withstand IEC 61730 MST 16; UL 1703 Clause 26, UL 3703 Clause 40; ULC/ORD C1703 Clause 5.9 Ground Continuity IEC 61730 MST 13, IEC 62108 Clause 10.3; UL 61730 MST 13 Hot Spot Endurance IEC 61215 Clause 10.9, IEC 61646 Clause 10.9, IEC 61730 MST 22, IEC 62108 Clause 10.17, IEC 61215 MQT 09; UL 1703 Clause 39, UL 61730 MST 22, UL 61215-2 MQT 09; ULC/ORD C1703 Clause 5.21 Impulse Voltage IEC 61730 MST 14; UL 61730 MST 14 Insulation IEC 61215 Clause 10.3, IEC 61646 Clause 10.3, IEC 62108 Clause 10.4, IEC 61215 MQT 03, IEC 61730 MST 16; UL 61730 MST 16, UL 61215-2 MQT 03 Leakage Current UL 1703 Clause 21; ULC/ORD C1703 Clause 5.4 Maximum Power Determination IEC 61215 3 Clause 10.2, IEC 61646 Clause 10.2, IEC 61215 MQT 02, IEC 61730 MST 03; UL 61215-2 MQT 02, UL 61730 MST 03 Measurement of IV IEC 60904-1 Measurement of Nominal Operating Cell Temperature (NOCT) Measurement of Temperature Coefficients IEC 61215 3 Clause 10.5, IEC 61646 Clause 10.5, IEC 61215 MQT 05 IEC 61215 Clause 10.4, IEC 61646 Clause 10.4, IEC 61215 MQT 04, UL 61215-2 MQT 04 Off-Axis Beam Damage IEC 62108 Clause 10.14 Partial Discharge IEC 61730-2 (2004) MST 15 (A2LA Cert. No. 3038.01) 12/20/2018 Page 4 of 7

Electrical-Related Testing (Cont d) Performance at Low Irradiance IEC 61215 3 Clause 10.7, IEC 61646 Clause 10.7, IEC 61215 MQT 07; UL 61215-2 MQT 07 Performance at STC and NOCT IEC 61215 3 Clause 10.6, IEC 61646 Clause 10.6, IEC 61215 MQT 06.1 & MQT 06.2, IEC 61730 MST 02; UL 61730 MST 02, UL 61215-2 MQT 06.1 Photovoltaic (PV) Module Performance and Energy Rating IEC 61853-1 Reverse Current Overload IEC 61730 MST 26; UL 1703 Clause 28, UL 61730 MST 26; ULC/ORD C1703 Clause 5.11 Temperature and Irradiance Corrections IEC 60891 Voltage, Current, and Power Measurements IEC 62108 Clause 10.2; UL 1703 Clause 20; ULC/ORD C1703 Clause 5.3 Wet Insulation Resistance IEC 62108 Clause 10.5; UL 1703 Clause 27; ULC/ORD C1703 Clause 5.10 Wet Leakage Current IEC 61215 3 Clause 10.15, IEC 61646 Clause 10.15, IEC 61730 MST 17, IEC 61215 MQT 15; UL 61215-2 MQT 15; UL 61730 MST 17 Wiring Compartment Securement UL 1703 Clause 42; ULC/ORD C1703 Clause 5.24 Maximum-Voltage Measurements UL 3703 Clause 38 Overload Test Reduced Spacings on Printed Wiring Boards Tests Stability Test Enclosure Mounting Static Load Test 2 UL 3703 Clause 41 UL 3703 Clause 44 2 UL 3703 Clause 46 2 UL 3703 Clause 47 Compression Test UL 3703 Clause 48 Rain and Sprinkler Tests UL 3703 Clause 49 Overcurrent Protection Calibration Test UL 3703 Clause 50 Capacitor Voltage Determination Test UL 3703 Clause 51 Flexing Test UL 3703 Clause 52 (A2LA Cert. No. 3038.01) 12/20/2018 Page 5 of 7

Electrical-Related Testing (Cont d) Power Restoration Test Locked Platform Test Emergency Stop Test Temperature Cycling Test for Components not within an Enclosure Humidity Cycling Test for Components not within an Enclosure 2 UL 3703 Clause 53 2 UL 3703 Clause 54 2 UL 3703 Clause 55 UL 3703 Clause 57 UL 3703 Clause 58 The following IEC documents make use of, or relate to, selected tests from the above list of methods for which accreditation is granted: IEC 60904-2 (Photovoltaic devices Part 2: Requirements for reference solar cells), IEC 60904-3 (Photovoltaic devices Part 3: Measurement principles for terrestrial photovoltaic (PV) solar devices with reference spectral irradiance data), IEC 60904-6 (Photovoltaic devices Part 6: Requirements for reference solar modules), IEC 60904-7 (Photovoltaic devices Part 7: Computation of spectral mismatch error introduced in the test of a photovoltaic device), IEC 60904-9 (Photovoltaic devices Part 9: Solar simulator performance requirements), and IEC 60904-10 (Photovoltaic devices Part 10: Methods of linear measurement). IEC 61215-1 2016 Terrestrial photovoltaic (PV) modules Design qualification and type approval - Part 1: Test requirements IEC 61215-1-1 2016 "Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-1: Special requirements for testing of crystalline silicon photovoltaic (PV) modules" IEC 61215-1-2 2016 "Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-2: Special requirements for testing of thin-film Cadmium Telluride (CdTe) based photovoltaic (PV) modules" IEC 61215-1-3 2016 Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-3: Special requirements for testing of thin-film amorphous silicon based photovoltaic (PV) modules IEC 61215-1-4 2016 "Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-4: Special requirements for testing of thin-film Cu(In,Ga)(S,Se)2 based photovoltaic (PV) modules" (A2LA Cert. No. 3038.01) 12/20/2018 Page 6 of 7

IEC 61730-1 2016 Photovoltaic (PV) module safety qualification - Part 1: Requirements for construction UL 61215-1-1 2017 Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-1: Special requirements for testing of crystalline silicon photovoltaic (PV) modules UL 61215-2-1-2 2017 "Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-2: Special requirements for testing of thin-film Cadmium Telluride (CdTe) based photovoltaic (PV) modules" UL 61215-2-1-3 2017 Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-3: Special requirements for testing of thin-film amorphous silicon based photovoltaic (PV) modules UL 61215-2-1-4 2017 "Terrestrial photovoltaic (PV) modules Design qualification and type approval Part 1-4: Special requirements for testing of thin-film Cu(In,Ga)(S,Se)2 based photovoltaic (PV) modules" UL 61215-2 2017 Standard for Safety Terrestrial Photovoltaic (PV) Modules Design Qualification and Type Approval Part 2: Test Procedures UL 61730-1 2017 " Standard for Safety: Photovoltaic (PV) Module Safety Qualification Part 1: Requirements for Construction UL 61730-2 2017 " Standard for Safety: Photovoltaic (PV) Module Safety Qualification Part 2: Requirements for Testing 1 For Product Family Standards listed on this scope of accreditation, the laboratory is found to be compliant with all test methods referenced within the Product Family Standard. As such, if outdated versions of the specific test methods are identified by the Product Family Standards listed on this scope of accreditation, it is not necessary to explicitly list the outdated versions of the specific test methods on the scope. In addition, the laboratory is capable of issuing accredited test reports to the outdated versions of the specific test methods although the outdated versions are not listed on this scope of accreditation. 2 This laboratory meets A2LA R104 General Requirements: Accreditation of Field Testing and Field Calibration Laboratories for these tests or calibrations. (A2LA Cert. No. 3038.01) 12/20/2018 Page 7 of 7

Accredited Laboratory A2LA has accredited RETC (RENEWABLE ENERGY TEST CENTER) Fremont, CA for technical competence in the field of Sustainable Energy Testing This laboratory is accredited in accordance with the recognized International Standard ISO/IEC 17025:2017 General requirements for the competence of testing and calibration laboratories. This accreditation demonstrates technical competence for a defined scope and the operation of a laboratory quality management system (refer to joint ISO-ILAC-IAF Communiqué dated April 2017). Presented this 20 th day of December 2018. Senior Director, Accreditation Services For the Accreditation Council Certificate Number 3038.01 Valid to August 31, 2020 For the tests to which this accreditation applies, please refer to the laboratory s Sustainable Energy Scope of Accreditation.