PRODUCTS&SYSTEMS; - Sunways AG

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10 Annual solar radiation in Europe Mean total values in kWh/(m 2·a)
Sunways Products & Systems 2009 / 2010 1.2 Your secret of success: system design influences the yield. The quantity of energy falling onto the Earth‘s surface in the form of sunlight corresponds to around 10,000 times the global energy demand. Professional PV system design improves the efficiency of electricity generation from the sun, and consequently the yield. Orientation of Solar Modules. The yield of a PV system varies with its orientation. In Europe south orientation and a roof inclination angle of 30° is ideal. Roofs with an orientation between southwest and southeast and an inclination between 10° and 50° are also very suitable for the installation of Sunways Solar Modules. The yield variation within this range is less than ten percent. Tracker systems can achieve up to 25 percent higher yield compared with fixed installations. The optimum tilt angle for PV systems is between 30 and 35 percent. The power ratio between Solar Modules and Solar Inverters. The power ratio between Sunways Solar Modules and Solar Inverters should be selected so that the PV system is both cost-effective and technically practical. For Sunways solar systems we recommend a design ratio of 90 to 105 percent under optimal conditions. This layout results from the «Performance Plus+» classification for the Sunways Solar Modules and the high efficiencies of the Sunways Solar Inverters. Shading of Solar Modules leads to loss of output and yield. PV system design therefore has to take into account the distance to shading objects and the sun‘s path throughout the year. Example of a power ratio: rated capacity Solar Module rated capacity Solar Inverter < 90% 100-110% > 105% generally possible ideal adjustment (south) adverse adjustment (east, west) Indication of source: PVGIS © European Communities 2001 – 2008 11
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Page 38 and 39: THE PHOTOVOLTAIC MAGAZINE A 95.1 %
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Sunways Products & Systems 2009 / 2
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Sunways Sunways Portal 3.2 Sunways
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The profitability of PV installatio
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Sunways Sunways services 4.1 Contac
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Sunways Sunways services 4.3 Become
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Product overview Solar Modules SM 1
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