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Applied energy v.212, 2018년, pp.1601 - 1610   SCI SCIE
본 등재정보는 저널의 등재정보를 참고하여 보여주는 베타서비스로 정확한 논문의 등재여부는 등재기관에 확인하시기 바랍니다.

Optimization and performance of bifacial solar modules: A global perspective

Sun, Xingshu (Network of Photovoltaic Technology, Purdue University, West Lafayette, IN 47907, USA ) ; Khan, Mohammad Ryyan (Network of Photovoltaic Technology, Purdue University, West Lafayette, IN 47907, USA ) ; Deline, Chris (National Renewable Energy Laboratory, Golden, CO 80401, USA ) ; Alam, Muhammad Ashraful (Network of Photovoltaic Technology, Purdue University, West Lafayette, IN 47907, USA ) ;
  • 초록  

    Abstract With the rapidly growing interest in bifacial photovoltaics (PV), a worldwide map of their potential performance can help assess and accelerate the global deployment of this emerging technology. However, the existing literature only highlights optimized bifacial PV for a few geographic locations or develops worldwide performance maps for very specific configurations, such as the vertical installation. It is still difficult to translate these location- and configuration-specific conclusions to a general optimized performance of this technology. In this paper, we present a global study and optimization of bifacial solar modules using a rigorous and comprehensive modeling framework. Our results demonstrate that with a low albedo of 0.25, the bifacial gain of ground-mounted bifacial modules is less than 10% worldwide. However, increasing the albedo to 0.5 and elevating modules 1 m above the ground can boost the bifacial gain to 30%. Moreover, we derive a set of empirical design rules, which optimize bifacial solar modules across the world and provide the groundwork for rapid assessment of the location-specific performance. We find that ground-mounted, vertical, east-west-facing bifacial modules will outperform their south-north-facing, optimally tilted counterparts by up to 15% below the latitude of 30°, for an albedo of 0.5. The relative energy output is reversed in latitudes above 30°. A detailed and systematic comparison with data from Asia, Africa, Europe, and North America validates the model presented in this paper. Highlights A physics-based modeling framework for bifacial solar modules is developed. Global maps of the performance and optimization of bifacial modules are presented. Bifacial gain is below 10% worldwide for ground-mounted modules with albedo = 0.25. Elevating modules to 1 m and increase albedo to 0.5 can boost bifacial gain to 30%. We show a set of empirical guidelines for analytically optimizing bifacial modules.


  • 주제어

    Bifacial solar module .   Global performance .   Global optimization .   Meteorological database .   Vertical solar module .   Self-shading .   Photovoltaics .   Solar energy.  

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