Water is used in photosynthesis. Nutrients are required to support the plant so it can continue to grow and produce energy from the sun. The distribution of wat

Water is used in photosynthesis. Nutrients are required to support the plant so it can continue to grow and produce energy from the sun. The distribution of water has it's own energy hungry pitfalls. Fertilizer production and distribution also requires significant energy. Water, fertilizer and maintenance costs are one of the big hindrances to making biofuels net energy positive.