Test-Report. Power determination on PV-Modules at Standard Test Conditions (STC) and PID-Test. PI-Report-Number: a_V2 2012/04/03

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DAP-PL-4314.00 Test-Report Power determination on PV-Modules at Standard Test Conditions (STC) and PID-Test PI-Report-Number: 201210260a_V2 2012/04/03 Client: Day4 Energy Inc. FAO Mr.

201210260a_V1, issued on 2012/03/23 because of exchanged wording: 1. Exchanged words - Prone to -> classified to (p.

1 DAP-PL Test-Report Power determination on PV-Modules at Standard Test Conditions (STC) and PID-Test PI-Report-Number: a_V2 2012/04/03 Client: Day4 Energy Inc. FAO Mr. Benjamin Duperthal 8168 Glenwood Drive Burnaby, BC V3N 5E9 Canada Consultants: Photovoltaik Institut Berlin AG Wrangelstraße 100 D Berlin Note: This report replace PI-Report-Number: a_V1, issued on 2012/03/23 because of exchanged wording: 1. Exchanged words - Prone to -> classified to (p. 10; 11) Photovoltaik-Institut Berlin AG PV Module technology Testing Consulting Development Research Wrangelstr Berlin Company site: Berlin Trade register: Amtsgericht Charlottenburg Nr. HRB B Managing board: Dr. Paul Grunow. Prof. Dr. Stefan Krauter. Dipl.-Ing. Sven Lehmann Head of Supervisory board: Prof. Dr. Rolf Hanitsch Phone: Fax: VAT No.: DE Swift-BIC: DRES DE FF 100 IBAN: DE Bank account: Commerzbank AG BLZ Account:

2 2 Test Report Report-Number: a_V2 Client: Address of Laboratory Day4 Energy Inc. Mr. Benjamin Duperthal 8168 Glenwood Drive Burnaby, BC V3N 5E9 Canada Photovoltaik-Institut Berlin AG Wrangelstraße 100 Gebäude 43 - Labor D Berlin Proposal number: Order number: Order date: 2012/01/19 Delivery date: 2012/02/10 Test start: 2012/02/27 Test end: 2012/03/13 Responsible project engineer: Dipl. Phys. Alexander Preiss Person in charge Dipl. Phys. Alexander Preiss Checked by André Prorok, M.Sc. The duplication, publication as well as passing on of this report is only allowed if it is complete and written permission from the PI-Berlin AG is given. The test results in this report relate just to the testing subject. Photovoltaik-Institut Berlin AG Report N.: a_V2 2/11

3 Test Report Content 1 General information of the testing subjects and label pictures... 3 2 Results of test... 4 2.

.. 10 1 General information of the testing subjects and label pictures Serial number Producer Type 110006318 Day4Energy D448MC 111003055

3 3 Test Report Content 1 General information of the testing subjects and label pictures Results of test I-V-Curve determination at Standard Test Conditions (STC) Electroluminescence analyse General information of the testing subjects and label pictures Serial number Producer Type Day4Energy D448MC Day4Energy Day4 60MC-1 Cell material multi-c- Si multi-c- Si Number of cells Module area [m²] Figure 1: Label picture of module types D448 MC and Day4 60MC-1. Photovoltaik-Institut Berlin AG Report N.: a_V2 3/11

4 4 Test Report 2 Results of test 2.1 I-V-Curve determination at Standard Test Conditions (STC) General information about the measuring system: The I-V-Curve has been determined at Standard Test Conditions (STC) in accordance with IEC Thereby a solar simulator Class A type Pasan SS3b has been used. The spectrum has been tested by TÜV- Rheinland on the 2010/01/12. The calibration of the solar simulator has been performed with a stabilized cell with WPVS (World Photovoltaic Standard) cell format. The calibration of the cell has been done by PTB on the 2010/02/13 and the calibration sign is PTB-10. The measuring system error referring to the maximum power is <±3%. The mismatch correction value for multi-c-si and the solar simulator mentioned above is Temperature coefficients (PI standard values) corrected with STC-tool 2.0.4: T coeff V oc : T coeff I sc : %/K %/K Statement of the estimated uncertainty of the Maximum Power determination (IEC 10.2) test results: Updated: 2011/03/23 IEC Test measurand relative error repeatability Pmp 2.9% 0.33% Voc 1.3% 0.12% Isc 2.2% 0.13% Initial STC Result compilation Serial number P MPP [W] V MPP [V] I MPP [A] V OC [V] I SC [A] FF [%] Power deviation to label [%] Photovoltaik-Institut Berlin AG Report N.: a_V2 4/11

5 5 Test Report I-V-Curve determination at STC SN: The measurements are accomplished at an irradiance of 1000 W/m² and a sweep time of 8 ms (1-flash). The results are then corrected to 25 C. Label data: Producer: Day4Energy Serial number: Module type: D448MC Test-results: Deviation to label [%]: P MPP [W]: V MPP [V]: I MPP [A]: V OC [V]: I SC [A]: FF [%]: (PI calculated) I-V-Curve 8 Current [A] W/m² Voltage [V] Figure 2: Temperature corrected I-V-Curve of module Photovoltaik-Institut Berlin AG Report N.: a_V2 5/11

6 6 Test Report I-V-Curve determination at STC SN: The measurements are accomplished at an irradiance of 1000 W/m² and a sweep time of 8 ms (1-flash). The results are then corrected to 25 C. Label data: Producer: Day4Energy Serial number: Module type: Day4 60MC-1 Initial testresults: Deviation to label [%]: P MPP [W]: V MPP [V]: I MPP [A]: V OC [V]: I SC [A]: FF [%]: (PI calculated) I-V-Curve 8 Current [A] W/m² Voltage [V] Figure 3: Temperature corrected I-V-Curve of module Photovoltaik-Institut Berlin AG Report N.: a_V2 6/11

7 7 Test Report 2.2 Polarisation analysis General information of the analysis method To analyse the potential induced degradation problem the following test sequence were implemented: The modules were tested with the following PID test sequence: I-V measurement in accordance with IEC before PID. Initial electroluminescence analysis due to the PI standard. Grounding of the module as described in the manual (via frame). Temperature of 85 C. Relative humidity of 85%. Applied voltage of the maximum system voltage given by the label between the cells and the frame. Degradation period of 48 hours. Final I-V measurement in accordance with IEC within four hours after finishing the test. Final electroluminescence analysis to evaluate the PID spread. For assessing the tested objects the modules will be classified in three PID quality categories A, B and C. A classifies modules with power drops below 5%, B between 5 and 30% and C all modules with a power deviation above. Photovoltaik-Institut Berlin AG Report N.: a_V2 7/11

8 8 Test Report I-V-Curve determination after PID-test at STC SN: The measurements are accomplished at an irradiance of 1000 W/m² and a sweep time of 8 ms (1-flash). The results are then corrected to 25 C. Initial test results: Producer: Day4Energy Serial number: Module type: D448MC Test-results after PID: Deviation to initial [%]: P MPP [W]: V MPP [V]: I MPP [A]: V OC [V]: I SC [A]: FF [%]: I-V-Curves 8 Current [A] Initial after_pid Voltage [V] Figure 4: Temperature corrected I-V-Curve of module Rated with class A. Photovoltaik-Institut Berlin AG Report N.: a_V2 8/11

9 9 Test Report I-V-Curve determination after PID-test at STC SN: The measurements are accomplished at an irradiance of 1000 W/m² and a sweep time of 8 ms (1-flash). The results are then corrected to 25 C. Initial data: Producer: Day4Energy Serial number: Module type: Day4 60MC-1 Test-results after PID-test: Deviation to initial [%]: P MPP [W]: V MPP [V]: I MPP [A]: V OC [V]: I SC [A]: FF [%]: I-V-Curves 8 Current [A] Initial after_pid Voltage [V] Figure 5: Temperature corrected I-V-Curve of module Rated with class A. Photovoltaik-Institut Berlin AG Report N.: a_V2 9/11

10 Test Report 2.3 Electroluminescence analyse 2.3.1 Electroluminescence SN: 110006318 Initial EL-Picture of module SN: 110006318.

10 10 Test Report 2.3 Electroluminescence analyse Electroluminescence SN: Initial EL-Picture of module SN: EL-Picture after PID test of module SN: Rated with class A. The module is classified to category A. Photovoltaik-Institut Berlin AG Report N.: a_V2 10/11

11 Test Report 2.3.2 Electroluminescence SN: 111003055 Initial EL-Picture of module SN: 111003055.

11 11 Test Report Electroluminescence SN: Initial EL-Picture of module SN: EL-Picture after PID test of module SN: Rated with class A. The module is classified to category A. Photovoltaik-Institut Berlin AG Report N.: a_V2 11/11

OUR PARTNERS. More: Please note: All product illustrations in this brochure may differ from the original.

OUR PARTNERS. More: Please note: All product illustrations in this brochure may differ from the original. PID KILLER. OUR PARTNERS More: www.padcon.com Please note: All product illustrations in this brochure may differ from the original. PID - WHAT'S THAT? A DEGRADATION CAUSED BY POLARIZATION AND LEAKAGE CURRENTS