Rapid and Effective Technology Development for 3D-Model-Based Solar Access Analysis and Comparative Study with Fish-Eye Camera

Chung-Hyun Lee, Woo-Hyuk Lee, Yosoon Choi, Jangwon Suh and Sung-Min Kim ()
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Chung-Hyun Lee: Department of Energy and Mineral Resources Engineering, Kangwon National University, Samcheok 25913, Republic of Korea
Woo-Hyuk Lee: Department of Energy and Mineral Resources Engineering, Kangwon National University, Samcheok 25913, Republic of Korea
Yosoon Choi: Department of Energy Resources Engineering, Pukyong National University, Busan 48513, Republic of Korea
Jangwon Suh: Department of Energy Resources and Chemical Engineering, Kangwon National University, Samcheok 25913, Republic of Korea
Sung-Min Kim: Department of Energy Resources and Chemical Engineering, Kangwon National University, Samcheok 25913, Republic of Korea

Energies, 2023, vol. 16, issue 7, 1-14

Abstract: In this study, we developed a 3D-model-based technology that can evaluate solar access by analyzing solar radiation and shade to find the optimal location for a solar system. We developed an algorithm that can quickly calculate viewshed by applying ray-casting technology, which is useful in the field of computer graphics. To apply the developed technology, an unmanned aerial vehicle (DJI MAVIC 3) was used to create a 3D model by taking 320 photos of the Kangwon National University Samcheok campus. To verify the developed technology, a comparison with image-based analysis using a 360-degree camera was performed for 30 points. As a result of applying the developed technology to the study area, it was possible to calculate the solar access for each point. In general, image-based analysis exaggerates the effects of objects such as trees, whereas the developed technique can produce realistic results if the 3D objects were well built. If the technology is further developed in the future, it can be used to increase the efficiency of solar power generation.

Keywords: solar access; viewshed; ray casting; 3D model; fish-eye camera (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2023
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