Background: Development of a new supersonic civil aircraft (SCA) requires a new environmental control system (ECS) to meet the improved fuel efficiency requirements to state-of-the-art passenger aircraft. It is proposed to increase energy efficiency to improve fuel efficiency of SCA by using electric compressors (EC) to compress air in the ECS. Aim: This article aims at assessing the performance of the ECS configuration developed as a result of research and development (RD) of the ECS for SCA. Materials and methods: We developed a static mathematical model of the ECS for SCA with moisture content control to determine system parameters of the main expected operating modes. Results: The article presents the basic parameters of the ECS for SCA and the calculation of ECS parameters for the main expected operating modes. Conclusion: The article presents conclusions on the performance of the developed ECS design for SCA, the level of readiness of the developed ECS technology, the need for research and development of demonstrators of EC technologies and an ECS pack.