Page 29

energetica-india-57_asiapowerweek

SOLAR POWER Picture 1 showing Meyer Burger HELiA PECVD and PVD with MB-HJT cell process from the Meyer Burger demonstration line for the purpose of demonstrating the suitability for mass production.This line is currently being upgraded to demonstrate workloads in harsh everyday mass-production environments. Greater efficiency enables electricity costs to be reduced significantly and because the surface areas are smaller, it is no longer necessary to use the cheapest materials. For values below 8ct/kWh, the module costs should be less than 150$/m2; for example, bifacial modules with typical albedo achieve 15% lower values. These concepts have been well known for some time, but reliable implementation in mass production has not yet been achieved. Meyer Burger is a leading global provider of equipment and processes in the PV industry in the areas of wafer, cell and module production. Due to its integrated value chain, Meyer Burger implements comprehensive solutions with optimum economic outcomes.Examples of this include the coordinated PECVD and PVD systems for HJT cell production, SmartWire cell connection technology for mono/bifacial cells in the module and the extremely efficient slicing of wafers with minimum sawing damage.The total potential of the diamond wire/HJT/ SmartWire technology combination is far from exhausted. Examples of this include theregionalization of products, 1500V systems, ultrathin wafers, optimized PV systems, etc.These enable the PV learning curve to be successfully extended in future for this already highly competitive system.In the author’s opinion, optimization and fine-tuning of the entire technology chain is absolutely essential. What effects are these developments having on PV today? On the well-known Swanson world maps, PV has become competitive almost everywhere in the world in the last 20 years. Graph 3: Cash-flow diagram for 2 PV systems of different technology (heterojunction and PERC) with same generation of 6000 kWh/a in first year. The higher efficient solar system need less Capex and the higher quality materials used intent to a higher lifetime of 40 years. The actual system with PERC technology is rated 40 years, but might last longer depending the region used. Degradation of p-type PERC systems not taken into account. This is continuing and it would now be possible to display world maps with the competitiveness of hybrid systems of PV and, for example, stored energy. Essentially,adopting the concepts under 2 and probably 2b), even more energy will in future be producedwith slightly lower system costs (ca. -8% to 15%).This will lead to shorter system payback times and a considerable reduction in risk:if the system is paid for in a short time, all future operation is pure profit. Technologies of this kind will have a decisive competitive advantage over other PV technologies or even fossil energy generators. The PV answer is that the innovations required for the next step are already available and that they will enable the overall cost reduction path to be pursued for some time to come �� PV is only available during the day and requires buffer storage such as batteries, power-to-gas or conversion to heat for power shifting. PV is also one of the first energy forms to demonstrate a fullcost accounting: from the production to operation, distribution and disposal 29 energetica INDIA · MAY | JUN16


energetica-india-57_asiapowerweek
To see the actual publication please follow the link above