The Determinants Factors for Solar Photovoltaic Implementation in Existing Building

Renewable energy contributes to the building sector's current global transition towards a sustainable energy system. Several renewable energy sources and solar photovoltaic have sparked great interest in reducing the dependency on fossil fuels and greenhouse gas emissions and mitigating global warming by harnessing the sun to power the energy. However, the exploitation of solar photovoltaic in an existing building requires various considerations with high uncertainty from the building owner. Thus, this study focuses on investigating determinant factors and their influence on the decision of solar photovoltaic implementation to ensure its success and efficiency. For this purpose, an extensive literature review conducted for the establishment of criteria. Then, a questionnaire survey was designed; and with the help of various stakeholders, consists of green building certified professionals to support the process in choosing the determinant factors. The outcome of the analysis from Exploratory Analysis of Principal Component Analysis with Varimax Rotation reveals that solar photovoltaic implementation is affected by economic, management, environmental, and technical factors. Optimizing the factors discussed in this paper provides insight into adopting renewable sources effectively. This paper also contributed to building knowledge to facilitate more research on factors in implementing solar photovoltaic projects in the future.