ˈɑːptɪməli loʊkˈeɪɾᵻd bˌaɪoʊmˈæs ænd ˈɛθɐnˌɑːl pɹədˈʌkʃən mˈʌst bˈæləns mˈɛni fˈæktɚz:  mˈɪnɪmˌaɪzɪŋ dˈɪstənsᵻz tʊ ænd fɹʌm mˈɑːɹkɪts, ɪfˈɛktɪvli kəlˈɛktɪŋ ænd ɛmplˈɔɪɪŋ bˌaɪoʊmˈæs wˈeɪsts, mˈæksɪmˌaɪzɪŋ kɹˈɑːp jˈiːldz bˈeɪst ˌɔn ɛndˈʊɹɹɪŋ sˈɔɪl kwˈɔlᵻɾi, ɐvˈeɪləbəl nˈætʃɚɹəl pˈɛst kəntɹˈoʊl ænd ˈædɪkwət sˈʌn ænd wˈɔːɾɚ, ænd ˈɑːptɪmˌaɪzɪŋ ɐ səfˈɪʃənt mˈɪks ænd ɹoʊtˈeɪʃən ʌv plˈænt spˈiːsiːz ˌɔn kˈʌltᵻvˌeɪɾᵻd, fˈæloʊ, ænd pɹɪzˈɜːvd lˈænd fɔːɹ hjˈuːmən, ˈænɪməl, ænd ˈɛnɚdʒi kənsˈʌmpʃən.
Optimally located biomass and ethanol production must balance many factors:  minimizing distances to and from markets, effectively collecting and employing biomass wastes, maximizing crop yields based on enduring soil quality, available natural pest control and adequate sun and water, and optimizing a sufficient mix and rotation of plant species on cultivated, fallow, and preserved land for human, animal, and energy consumption.