Study on the effect of photovoltaic louver shading and lighting control system on building energy consumption and daylighting

ABSTRACTPhotovoltaic louver shading (PLS) and lighting control system (LCS) can both reduce energy consumption during building operation, but when used in combination, PLS may reduce indoor daylighting and increase lighting energy consumption, which is not good for the LCS. In order to reduce the energy consumption of building operation, this paper adopts the parametric performance design method, uses the Grasshopper platform and Ladybug tools to establish a one-click simulation process, and analyzes the energy-saving potential and daylighting impact of the combined use of PLS and LCS in Qingdao. It was found that the annual energy efficiency of the PLS can reach 15%, and LCS can save about 50% energy of lighting in a year, producing an energy efficiency at 14%. In the meantime, using both the PLS and LCS throughout the year can save up to 22.8%. When using only LCS from December to February, and using both PLS and LCS from March to November can save up to 24.14%.KEYWORDS: Solar energydaylightingphotovoltaic louver shading systemlighting control systemenergy efficiency AcknowledgementsWe would like to express their gratitude to the editors and reviewers for their thoughtful comments and constructive suggestions on improving the quality of the paper.Disclosure statementNo potential conflict of interest was reported by the authors.Additional informationFundingThis research is supported by grants from the National Natural Science Foundation of China (No.52108015) and Natural Science Foundation of Shandong Province (No. ZR201910280141).Notes on contributorsQingsong MaQingsong Ma focuses on passive building design, green building design, parametric building design and solar thermal utilization system technology.Shenglin RanShenglin Ran focuses on green building design and parametric building design.Xiaofei ChenXiaofei Chen is particularly concerned with how to create better living conditions for people through intelligent and responsive architectural and urban design.Lingrui LiLingrui Li focuses on green building design.Weijun GaoWeijun Gao is mainly engaged in urban planning, low carbon urban design, and healthy architectural design.Xindong WeiXindong Wei mainly studies energy efficient building design, urban energy system planning and evaluation, sewage treatment and resource utilization.