- English
In this study, we developed a logistic regression modeling approach to analyze the relationship between utility-scale solar power plant (SPP) locations and flood hazards. Based on the standardized coefficients of the model, we compared this relationship with the relationship between SPP presence/absence and other typical spatial determinants like average solar irradiation and distance to urban areas. Our aim was to better understand if/to what degree flood exposure is being factored into the siting of SPPs, so-as to get an overview of the potential exposure of the solar power systems to flooding. As a case study, we selected the 10 Association of Southeast Asian Nations (ASEAN) countries; A region with frequent flooding. We found a significant negative relationship between flood depth and the presence of SPPs, indicating that SPPs were more likely to be located in areas where flood hazards were lower. The relationships between SPP presence/absence and other spatial determinants were much stronger, however, suggesting that flood hazards have less impact on SPP siting than solar energy potential (i.e., amount of solar irradiation) and easy accessibility to areas with high electricity demand (i.e., distance to the nearest urban area). Subsequent research could investigate the degree to which SPPs in flood-prone areas are implementing measures to reduce flood risks, e.g., mounting solar panels on taller structures or enhancing site drainage.
- English
