Research on the Whole Life Cycle Energy Efficiency Evaluation of New Energy and Clean Buses

This paper studies the efficiency of energy utilization for common hybrid buses, compressed natural gas (CNG) buses, and pure electric buses during the course of raw material mining by using the method of life cycle analysis and compares them with traditional diesel buses. The results show that advanced electric power technology, such as hybrid and pure electric, can reduce total energy and fossil energy consumption significantly, in the range of 25–28% and 31–35%, respectively. The use of clean fuels such as natural gas can significantly reduce the consumption of fuel oil about 98%.