The first vertically integrated Solar Module Producer in Southeast - PowerPoint PPT Presentation

The first vertically integrated Solar Module Producer in Southeast Europe Open to the future of Energy

Solar Cells Hellas PV Module Presentation Introduction 15/10/2010 2

Solar Cells Hellas PV Module Presentation Introduction 15/10/2010 3

Solar Cells Hellas PV Module Presentation Introduction 15/10/2010 4

Solar Cells Hellas PV Module Presentation Introduction 15/10/2010 5

SCH: Who we are www.schellas.gr 80 MW/yr SCH Group Multicrystaline Solar Production Facilities, Industrial Zone of Patras Solar Cells Hellas PV Module Presentation PV First Vertically integrated Si Ingots Wafers Cells Modules Power Electricity production in SE Europe Plants Turn-key development by GT Solar, world recognised turn-key solution provider Multicrystalline silicon solar wafers cells modules Foundation year: 2006 Total Production Capacity: 80 MWp/year Total building space: 14.000 m² Total investment: 120 M € 6 15/10/2010

SCH: What we do – Si Wafer Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Wafer Production Capacity: 80MW/yr Silicon Ingot crystal growing Slice silicon ingots into bricks Slice silicon bricks into wafers Main Silicon Wafer Characteristics Solar Cells Hellas PV Module Presentation Crystal Multicrystalline Silicon 0.5- 2.0 Ωcm Specific resistivity ≥1.8 μs Minority carrier lifetime Conduction type P (Boron doped) Shape of wafer Full Square (Bevel edge corners) 156.0 mm ± 0.5 mm Dimensions Average thickness 180/ 200 μm ± 20 μm We acquire Innovative Manufacturing Process from the first step 7 15/10/2010

SCH: What we do – Si Wafer Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology DSS Furnaces Squarer Wire Saw Solar Cells Hellas PV Module Presentation Feedstock Recycling Cleaning System Kiln Feedstock Wet blasting Cleaning Grinding, Polishing and Chamfering System System  Strategic co operations with PV leader equipment suppliers 8 15/10/2010

SCH: What we do – Si Wafer Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology DSS Multicrystalline Ingot Growth Heat (≈4hrs), Melt (≈10hrs) Growth (≈18hrs) As growth proceeds, DSS Furnaces insulation rises and more molten Si solidifies Solar Cells Hellas PV Module Presentation Corners freeze last. Annealing steps follow growth and before cooling Multicrystalline Ingot 9 15/10/2010

SCH: What we do – Si Wafer Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Multicrystalline Ingot Brick Cutting Multicrystalline Bricks and Multicrystalline Ingot recyclable material Squarer Solar Cells Hellas PV Module Presentation PEG used as coolant and SiC acts as dispersed lubricant agent (apart from cutting media being the dispersion medium) 10 15/10/2010

SCH: What we do – Si Wafer Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Multicrystalline Brick Quality Control, Cropping, Polishing, Chamfering Solar Cells Hellas PV Module Presentation Removes surface fractures and Reinforces corners and edges reducing 11 damage from squarer risk of corner and bevel defects 15/10/2010

SCH: What we do – Si Wafer Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Wire Sawing, wafer degluing, wafer cleaning Multicrystalline Si wafer Solar Cells Hellas PV Module Presentation 12 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Main Silicon Solar Cells Characteristics 156mm x 156mm ± 0.5mm Dimensions 180μm ± 2 0μm, 2 0 0μm ± 2 0μm Thickness Multicrystalline Si 2 busbars (silver aluminium) Cell Production 2mm wide each Capacity: Front (-) Silicon Nitride (SiNx) AR coating 80MW/yr 2 busbars (silver aluminium) Solar Cells Hellas PV Module Presentation Rear (+) 5mm wide each Maximum Power (Pmax): 4.05 W Solar cells SCH6P with average efficiency of 16.0% Multicrystalline Solar Cells – SCH6P We produce high-quality solar cells from high-quality wafers 13 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Diffusion Furnace PSG Iso-Texturing Equipment Iso -Texturing Phospate Glass Removal Solar Cells Hellas PV Module Presentation Diffusion Furnace Firing Furnace Anti Reflective Coating Anti – Reflection Coating Firing Furnace MetallizationLine Laser Isolation Laser Isolation Metallization Line 14 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Iso-Texturing Iso-Texturing Solar Cells Hellas PV Module Presentation As-cut post-iso 15 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology N-type dopant diffusion and PSG removal Diffusion Furnace Solar Cells Hellas PV Module Presentation PSG layer being removed is only PSG 0.0000003mm in thickness 16 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology  Anti- Reflective Coating by PECVD P lasma E nhanced C hemical V apor Anti Reflective Coating D eposition Post-iso Solar Cells Hellas PV Module Presentation Post-AR 17 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Metallisation through screen printing Back (+) Metallization Line Solar Cells Hellas PV Module Presentation Back Screen Mesh Squeegee paste Front (-) 18 wafer 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Firing, laser edge isolation and cell testing Firing Furnace Grooving the front surface at the edge of wafer. Close loop. Only after laser cut does Solar Cells Hellas PV Module Presentation wafer become cell Laser Isolation Every single cell is tested and cells then sorted by voltage according to the produced power, sorting cells into bins of the same efficiency class 19 Cell tester assembly 15/10/2010

SCH: What we do – Si Cell Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Production Process Standards Core Advantages - Results Strict Quality Control & Testing  Highest Quality & Reliable standards under an ISO 9001: 2008 performance certified system Quality Control Print Pressure Control  Stress Reduction metallisation method Diode characteristics test via  Module hot spot reserve current & shunt resistance occurrence elimination sorting  Performance Homogeneity Narrow current class & optical in each delivered lot sorting  Micro – crack risk minimization Solar Cells Hellas PV Module Presentation  High color uniformity Innovation Acidic isotexture & Advanced AR  Excellent aesthetic result coating deposition process employed  Optimum Light Absorption Advanced & High process  High quality multicrystalline engineering level cells 20 15/10/2010

SCH: What we do – Si Module Production Si Ingots Wafers Cells Modules Advanced Production Processing Technology Module Capacity: 35 MW/yr Multicrystalline silicon:  Most mature tested semiconductor technology for the production of electricity from solar irradiation  Most reliable proven technology for photovoltaic applications  Most suitable for wide range PV installations e.g. large size installations & small size domestic installations  Si: Cheap and abundant compared to other technologies  Cover the largest contribution in PV electricity production Multicrystalline PV Modules – SCH660P world-wide We operate new, state-of-the-art production equipment Solar Cells Hellas PV Module Presentation Inline sheeter Glass Washer Laminator Tabber stringer Production Technology Empowered by GT Solar 21 15/10/2010

SCH: What we do – Si Module Production Si Ingots Wafers Cells Modules SCH660P& - Multicrystalline PV Modules Solar Cells Hellas PV Module Presentation 22 15/10/2010

SCH: What we do – Si Module Production Si Ingots Wafers Cells Modules Advanced Product Components for SCH660P PV Modules Characteristics Frame  Corner cutting: 45 degrees  Long side: double wall  Short side: double wall  Screw holes punched: on long side  Punched holes: 4 mounting, 2 grounding, 8 drainage holes  Surface treatment: Silver Anodized, Sandblasting (Mat) Core Advantages  Solar Cells Hellas PV Module Presentation Durability : extremely long life span & significant economic advantages through maintenance and operating saving  Stability : in all weather conditions  Color Stability : extremely long life span & significant economic advantages through maintenance and operating savings  Aesthetics : large increasing number of gloss and color alternatives & minimization or elimination of color variations  Better and safer handling Better drainage of water   Handy to install 23 15/10/2010