The photovoltaic-energy storage-charging station (PV-ES-CS) is an important approach of promoting the transition from fossil energy consumption to low-carbon energy use. However, the integrated charging station is underdeveloped. One of the key reasons for this is that there lacks the evaluation of its economic and environmental benefits. This study proposes an evaluation framework to assess the utilization potential of PV-ES-CS in the senior of highway service areas. Based on the data of highway infrastructure and roadside energy use in Chongqing, this paper analyses the technical, economic and environmental benefits of integrated charging station.