Energy in agriculture is important in terms of crop production and agro processing for value adding and agriculture sustainability. The aim of this study is to determine the input–output energy consumption of grape production in open field in Hamadan province. Data for this study were collected from 48 grape growers in the Hamadan province by using face-to-face questionnaire. The orchards were chosen by random sampling method. The results revealed that the energy input and output in grape production was 33873.78 and 58622.40 MJha-1, respectively. Total fertilizer found as the most energy consuming input (about 52%) was followed by electricity for grape production. Chemicals were the least demanding 82 energy input for grape production with only 0. 5% of the total sequestered energy. The input–output ratio was 1.73 and energy productivit y was found to be 0.15 kg MJ-1 . About 78% of the total energy inputs used in grape production was nonrenewable while only about 22% was renewable. Thus, new policies, emphasizing energy consumption without degradation of national resources, should be designed for such orchards. Based on these results, the benefit-cost ratio from grape production in the surveyed orchards was calculated to be 1.14. This value revealed that governments must be supported consumers with providing subsides.
