Recent developments in CO2/CO electrolysis as well as advances in genetic engineering and selective breeding have laid the groundwork for the emergence of electro-ag to substantially reduce the energy needs of vertical farming. Fueled by acetate derived from CO2 using renewable electricity, electro-ag enables the heterotrophic growth of food crops. Unlike traditional controlled environments or conventional farming, electro-ag is not constrained by the same efficiency limitations of photosynthesis. Instead, the efficient metabolic pathways of acetate utilization are harnessed to allow for at least a 4-fold improvement in solar-to-food efficiency, with future efforts potentially leading to an order of magnitude improvement in energy solar-to-food efficiency. If the United States food supply was produced via electro-ag, land usage could be decreased by 88% while substantially streamlining food supply chains by decentralizing food production.
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