Technology to improve reliability Riyadh May 2018 JinkoSolar Co., Ltd.
Conf nflic icting ng Demand mand Maximum P erformance Most Lowest Cost Durable P roducts
Resea search ch and and Developm velopment ent Prominent R&D Team with around 200 R&D personnel holding Doctor/Master degrees driving significant product improvements Using DuPont's advanced materials to produce high-efficiency and low-cost solar cells Cooperating with global universities and research institutions, developing the latest technology Own several core technology patents on ingot, wafer, cell and modules processing Continuous R&D investment 3
Quali lity ty Cont ntro rol EMS- Electronic Management System • 16 in-line quality control points in module workshop • Precise data-recording & supervision for all the manufacturing QC points Product Traceability Control • Tracking card with unique barcodes tracing from module back to ingot • SAP process traceability system with 26-year data storage. • 40 in quality checkpoints in the entire process Employ Electroluminescence Test (EL) to inspect for potentially defective cells. 4
Cert rtific ification ation System Certificates Product Certificates MCS TUV UL ISO 9001:2008 ISO 14001:2004 OHSAS 18001:2007 CQC JET 5
Additio itional nal Cert rtific ificat ation ion Temperature & Agriculture Coastal Desert humidity Anti- PID DUST AND AMMONIA S A L T MIST 85 ℃ /85% SAND R E SIST ANC E R E SIST ANC E RH, -1000V IE C60068-2- IEC61716 IEC61701 IEC62804 68
IEC Cert rtific ificati ation on
Field ld Failures ures
Tech chnical nical Bankabi kabili lity ty Certification Participation in Test beyond development IEC of standards Other R&D Activities Voluntary Tests
LAB ABS 10
Micr cro-crac cracking ng Microcracking can lead to hotspot, power degradation and snail trails Generally the snail-trails will happen after more than half a year on-site, through simulation we can predict the probability and severity . Microcrack & Snail-trails Simulation Portable EL 11
Obse served ved Back ckshe sheet et failures ures
Focu cus s on Yield
Half cell 14
Advantages of Half cell 15
Shading Advantages of Half cell 16
Hot Spot Elimination Maxim • Current, thus Shading Cell temperature Delta Power of half-cell condition from test is halved Full cell 115.4 / • Lower Power dissipated on Mc-Si shaded cell ½ half cell 96.0 19.4 Around 20 ° C • lower temp. Full cell 122.4 / In hot spot test Mono PERC • Less risk for ½ half cell 98.0 24.4 system operation 17
Bifacial: Tech. Concept Conventional Bifacial Sunlight Sunlight Grid ARC Grid ARC n+ GLASS n+/p+ GLASS P-type mono wafer EVA CELL CELL EVA P-type/N-type mono wafer CELL CELL Al contact GLASS ARC BACKSHEET Grid Sunlight Front Side Back Side Front Side Back Side 18 Internal Jinko
Bifacial: Real Power Generation Gain P-type bifacial module(bifacial factor 0.7) Per watt power generation gain (only front side power concerned)(%) Address ： Jinko factory, Haining ， 30.32 ° north latitude ， 120.42 ° east longitude 20% Tilt angle ： 30 ° , close to the latitude ； Mounting height ： the distance from the lower edge to the 15% ground is 1.2m ； Capacity ： 1.5kW/array. 10% 17%-19% 5% 7%-9% 6%-7% 6%-7% 4%-5% 0% 白漆 黄沙 水泥 草地 水面 White paint Sand Cement Grass Water 22%-25% 30%-33% 10%-20% 2%-5% 80%-85% Surface Reflectance 19 Internal Jinko
Some me Refer erences nces South Africa | 91 MW Kuwait | 10 MW Lebanon | 1 MW Jordan | 23 MW www.jinkosolar.com 20 20
Thank You! 21
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