Ethanol is a low-carbon, scalable feedstock for the production of SAF.
The industry has steadily improved its carbon intensity through efficiency gains and now has the opportunity to make a step-change reduction with carbon capture and storage (CCS).
With reputable ETJ technology providers, ethanol is poised to supply the growing SAF market.
The vast majority of SAF produced today is through the HEFA process using fats, oils and greases.
While a proven production process, the segment faces headwinds due to feedstock supply constraints and competition for the same inputs as the growing renewable diesel industry.
New technologies being developed for SAF include gasification and electricity to liquid fuels.
Technological maturity, high capital & operating costs and large renewable energy requirements present challenges for large-scale deployment.
The GREET model is an analytical tool that simulates the energy use and emissions output of various vehicle and fuel combinations.
Developed by the U.S. Department of Energy, the GREET model accurately accounts for technological advancements and climate-smart agricultural practices that reduce the carbon intensity of feedstock production, enhance sustainability and enable the agricultural sector to lower carbon emissions.
The current model that is used to determine Carbon Intensity for SAF is the International Civil Aviation Organization (ICAO) and United Nations standard that is favored by countries like China and Russia. The ICAO has not been updated in over a decade, and actually rates petroleum-based jet fuel better than U.S. corn-grain ethanol, which is patently false.