Evaluation of the life cycle of bioethanol produced from rice straws

► The life cycle of bioethanol produced from rice straw were evaluated. ► Two types of rice straw, three energy scenarios and three primary were considered. ► The net energy consumption, CO2 emission and production cost are estimated. ► Energy consumption, emission and cost are dependent on feedstock and scenarios. ► A shift in scenarios reduces the emission and production cost of bioethanol.