NPV-BASED 3D ARRAY DESIGN SYSTEM OF ROOF-TOP PHOTOVOLTAICS

  • Kim Se-Jong (Dongbu Corporation) ;
  • Cho Dong-Hyun (Department of Architectural Engineering, The University of Seoul) ;
  • Park Hyung-Jin (Department of Architectural Engineering, The University of Seoul) ;
  • Yoon Hee-Ro (Department of Architectural Engineering, The University of Seoul) ;
  • Koo Kyo-Jin (Department of Architectural Engineering, The University of Seoul)
  • Published : 2013.01.09

Abstract

On BIPV systems, especially roof-top PV systems, the power generation is easier to be reduced due to the shades of facilities nearby, or roof itself. To secure profitability of roof-top PV systems, the optimal design of solar arrays through the precise shading analysis is an important item of design considerations. In this paper, an optimization system for array design of roof-top PVs is to be developed using three-dimensional Geospatial Information System(GIS). The profitability of income and expense is considered through the shading analysis of entire roofs. By applying the system to project for validation, the adequacy and the improvement of NPV of the system were verified compared to expert's design. The system has significance by reason that PV modules are placed through rules established with expert knowledge and geometric rules were applied to reflect the constructability and maintainability.

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Acknowledgement

This work (Grants No.C0036752) was supported by Business for Cooperative R&D between Industry, Academy, and Research Institute funded Korea Small and Medium Business Administration in 2012.