What Are the Obstacles to Promoting Photovoltaic Green Roofs in Existing Buildings? The Integrated Fuzzy DEMATEL-ISM-ANP Method

Hongbing Li, Yuran Xiang (), Yaohui Xia, Wanjun Yang, Xiaoting Tang and Tao Lin
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Hongbing Li: Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China
Yuran Xiang: Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China
Yaohui Xia: Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China
Wanjun Yang: Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China
Xiaoting Tang: Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China
Tao Lin: Sanya Science and Education Innovation Park, Wuhan University of Technology, Sanya 572024, China

Sustainability, 2023, vol. 15, issue 24, 1-24

Abstract: Photovoltaic green roofs can contribute to energy conservation in buildings and the sustainable development of cities, but they have yet to be widely used due to many factors. Therefore, it is necessary to investigate the factors limiting the promotion of photovoltaic green roofs and to clarify their interactions. Based on the existing literature and expert recommendations, this paper summarizes 20 factors affecting its promotion. Fuzzy DEMATEL was used to analyze the causal relationship and importance of the influencing factors. A hierarchical structure was established using the interpretative structural model (ISM) to visually represent the layered structure and pathways of the factors. The role and status of each influencing factor were determined using the cross-influence matrix analysis method (MICMAC). Finally, the analytic network process (ANP) was combined with the overall influence matrix to determine the overall weight of each factor. Combined with the DEMATEL-ISM-ANP method, nine key influencing factors, namely, the lack of incentive policies, imperfect technical specifications and evaluation standard system, local economic development level, residents’ cognition, residents’ willingness, enterprises’ technical problems, the lack of relevant talents, the lack of capital investment, and cooperation mode, were finally identified and analyzed, and suggestions and strategies for improvement were proposed.

Keywords: photovoltaic green roof; influencing factors; DEMATEL-ISM-ANP; MICMAC (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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