Key Takeaways:

The Energy Independence and Security Act of 2007 set a goal of producing 16 billion gallons of cellulosic ethanol annually by 2022, but actual production reached only a small fraction of that target. High production costs, feedstock collection challenges, and technological hurdles prevented cellulosic ethanol from becoming commercially competitive at scale. Falling oil prices following the U.S. shale boom reduced the economic incentive for investors to fund expensive cellulosic ethanol projects. The bankruptcies and failures of major companies such as Range Fuels, KiOR, and Abengoa undermined confidence in the industry's commercial viability and caused investment to shift toward other renewable fuel technologies. Brazil's Ra...