Nowadays,energy consumption which closely contacts with environmental impacts of manufacturing processes has been highly commented as a new productivity criterion.However,little attention has paid to the development of process planning methods that take energy consumption into account.An energy-efficient process planning model that incorporates manufacturing time and energy consumption is proposed.For solving the problem,an improved genetic algorithm method is employed to explore the optimal solution.Finally,a case study for process planning is given.The experimental result generates interesting effort,and therefore allows improving the energy efficiency of manufacturing processes in process planning. Nowadays, energy consumption which closely contacts with environmental impacts of manufacturing processes has been highly commented as a new productivity criterion.However, little attention has paid to the development of process planning methods that take energy consumption into account. An energy-efficient process planning model that incorporates manufacturing time and energy consumption is proposed. For solving the problem, an improved genetic algorithm method is employed to explore the optimal solution. Finally, a case study for process planning is given. the experimental result ... create effort, and Latest Answers the energy efficiency of manufacturing processes in process planning.