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Evaluation method for the availability of solar energy resources in road areas before route corridor planning

Author

Listed:
  • Jiang, Wei
  • Zhang, Shuo
  • Wang, Teng
  • Zhang, Yufei
  • Sha, Aimin
  • Xiao, Jingjing
  • Yuan, Dongdong

Abstract

The full utilization of solar energy resources along the road is an effective method to solve the energy shortage in transportation. The key to this is an accurate evaluation of solar energy resources, which provides the rationale for the optimal location of road photovoltaic (PV) projects. However, determining the availability of solar energy resources in road areas before route corridor planning remains difficult. To address the issue, this paper developed a standardized method. Firstly, this paper analyzed the critical factors affecting the availability of solar energy resources. They were meteorology, topography, land use type, geology, and location. On that basis, we developed a four-level evaluation indicator system. Then, it proposed a multi-indicator evaluation method based on the Analytic Hierarchy Process (AHP) and the Geographic Information System (GIS). It used AHP to calculate the weights of each indicator, with solar radiation being the most important. It used GIS to analyze and overlay the spatial distribution of multiple indicators to obtain the map of suitability grades, which could be used to route corridor selection for road PV projects. It also used a case study to demonstrate how the method is applied. The findings show that the method can accurately evaluate the availability of solar energy resources. Furthermore, it studied the appropriate division of evaluation units and it is advised that they shouldn't be larger than 30 m × 30 m. These results provide guidance as a reference for the application of road PV projects and site selection for route corridors worldwide. That will promote the integration of transportation and energy in the future.

Suggested Citation

  • Jiang, Wei & Zhang, Shuo & Wang, Teng & Zhang, Yufei & Sha, Aimin & Xiao, Jingjing & Yuan, Dongdong, 2024. "Evaluation method for the availability of solar energy resources in road areas before route corridor planning," Applied Energy, Elsevier, vol. 356(C).
    • Handle: RePEc:eee:appene:v:356:y:2024:i:c:s0306261923016240
    DOI: 10.1016/j.apenergy.2023.122260
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