**3. Model**

On the basis of the above evaluation index system of HRSs site selection, the process of the intelligent location model of HRSs based on FCE-ANN will be introduced in detail. The proposed FCE-ANN intelligent site selection decision-making process was divided into three stages. The first is described in detail using the AHP method, namely, a questionnaire survey to invite expert consultation to determine the HRSs site selection evaluation index system of the weight of each index value of the calculation process. Second, Experts and scholars in the hydrogen energy industry are invited to form an expert evaluation group to conduct a FCE of HRSs. Lastly, expert evaluation levels and evaluation results were taken as the data of the training ANN, the ANN model was used for comparative decisions, and the feasibility of the intelligent site selection decision method was obtained. The details for each phase are described in the following sections. This study thus includes three modules: AHP method, FCE method, and ANN model. The research framework is shown in Figure 3.

**Figure 3.** Research framework proposed in this study.
