The selection of a desirable site for constructing a pumped hydro energy storage plant (PHESP) plays a vital important role in the whole life cycle. However, little research has been done on the site selection of PHESP, which affects the rapid development of PHESP. Therefore, this paper aims to select the most ideal PHESP site from numerous candidate alternatives using the multi-criteria decision-making (MCDM) technique. Firstly, a comprehensive evaluation criteria system is established for the first time. Then, considering quantitative and qualitative criteria coexist in this system, multiple types of representations, including crisp numerical values (CNVs), triangular intuitionistic fuzzy numbers (TIFNs), and 2-dimension uncertain linguistic variables (2DULVs), are employed to deal with heterogeneous criteria information. To determine the weight of criteria and fully take the preference of the decision makers (DMs) into account, the analytic hierarchy process (AHP) method is applied for criteria weighting. After that, an extended Vlsekriterijumska Optimizacija I Kompromisno Resenje (VIKOR) method is utilized to provide compromise solutions for the PHESP site considering such heterogeneous information. At last, the proposed model is then applied in a case study of Zhejiang province, China to illustrate its practicality and efficiency. The result shows the Changlongshan should be selected as the optimal PHESP.

This study explores methods to assess the benefits of WPHPP from three aspects: economic, environmental, and social. Decarbonization has become an inevitable trend in the electricity generation industry. Storage integrated renewable energy generation plants have enhanced the stability of the output of renewable energy to a certain degree. Wind power hydrogen production projects (WPHPPs) could be a promising solution to the Chinese government’s peak carbon dioxide emissions goal. To achieve this goal, an evaluation system consisting of 12 main benefits factors is established. Then, an assessment approach based on Cloud-MULTIMOORA is proposed to select the best alternative. Specifically, HELTS-Cloud model is used to describe the information given by decision-makers and experts. Then, the SWARA and CRITIC methods are applied to obtain the subjective and objective weights. Additionally, a constrained optimization model is introduced to obtain the comprehensive weights. Finally, the MULTIMOORA-EDA method is used to obtain the final ranking of alternatives. Additionally, a case study is made to certify the usability and feasibility of the proposed method. This paper provides a method for assessing the benefits of WPHPP and promotes the application of this new kind of green energy project in the future.

Due to the characteristics of poverty alleviation and cleanness, the photovoltaic poverty alleviation project (PPAP) plays an important role in consolidating the link between poverty alleviation and “rural revitalization” in China, which has attracted the attention of all sectors of society. In practice, EPC (engineering, procurement, and construction) mode is widely used in PPAP, which brings considerable benefits, but also has many risks. To ensure the successful development of the project, it is necessary to carry out risk assessment when selecting the scheme. However, this complex multi-attribute decision-making problem can be improved. First, the risk of PPAP is lack of targeted research; second, the uncertainty in the evaluation process has not been fully solved; third, the method of sorting is unreasonable. To solve these problems, this study establishes the risk assessment framework of PPAP. Firstly, a comprehensive index system suitable for PPAP risk assessment is established, including 5 first-level indexes and 22 second-level indexes. Then, the ANP method based on fuzzy environment is used to determine the weight. Finally, the cloud model and PROMETHEE are combined to select a higher priority solution. Case study and sensitivity analysis prove the robustness and feasibility of the framework. This study puts forward the corresponding risk response measures, to provide reference for the future practice of risk prevention and control.