Sustainable Aviation Fuel (SAF) State-of-Industry Report: State of SAF Production Process
7/1/2024
Because of their compatibility with existing fuel infrastructure and vehicle technologies, biofuels will be a critical component of decarbonizing hard-to-abate sectors in the U.S. Sustainable aviation fuel (SAF) will similarly be a changemaker in the aviation industry. This study examines the various SAF production pathways, provides an overview of the current state of the industry, and addresses challenges and hurdles facing the industry in order to proactively mitigate their impact.
Authors: Oscar Rosales Calderon, Ling Tao, Zia Abdullah, Kristi Moriarty, Sharon Smolinski
The Role of Biofuels and Biomass Feedstocks for Decarbonizing the U.S. Economy by 2050
4/11/2024
Bioenergy holds significant potential to transform the transportation sector, helping to eliminate hard-to-abate sources of emissions, such as aviation, that lack viable electrification alternatives. Further, integrating more biomass-based electrification pathways will diversify the country’s electrical grid, increasing its stability in the future. This study uses process-based analyses of biomass resources and pathways to demonstrate the decarbonization potential and cost-efficiency of scaling bioenergy in the United States.
The Future of Biofuels in the United States Transportation Sector
12/29/2023
This article analyses conversion options for biomass to fuels in the U.S. transportation sector, particularly for heavy duty transportation and aviation, based on regional carbon dioxide transportation and injection costs and current U.S. tax credits. The article found that that under current credits biofuels play a role only in some regions of the U.S., but a range of policy scenarios, including combining biofuel production with carbon-capture and storage, can lead to biofuels playing a significant role nationally.
Authors: Geissler, C; Ryu, J; Maravelias, C
A Deep Decarbonization Framework for the United States Economy – a Sector, Sub-Sector, and End-Use Based Approach
12/8/2023
Using the recently developed Decarbonization Analysis Model, this report analyzes the estimated greenhouse gas mitigation potential for projected energy demand based on several sector-level and cross-sectoral decarbonization pathways, including electrification, low-carbon fuels, and the reduction of fugitive emissions. The report analyzes the remaining projected emissions and highlights the need for developing low-carbon and carbon-negative alternatives to mitigate the fossil-based carbon emissions resulting from the fossil-based fuels in heavy-duty transportation.
Authors: Kar, S; Hawkins, T; Zaimes, G; Oke, D; Singh, U; Wu, X; Kwon, H; Zhang, S; Zang, G; Zhou, Y; Elgowainy, A; Wang, M; Ma, O
Bioenergy Technology Office Multi-Year Program Plan
3/1/2023
The U.S. Department of Energy (DOE)’s Bioenergy Technologies Office (BETO) works alongside national laboratories, universities, and private industry partners to advance clean energy technologies sourced from renewable carbon resources. This Multi-Year Program Plan (MYPP) establishes BETO’s missions and goals, while also identifying strategic approaches to the Office’s research, development, and demonstration (RD&D) plans. Included in these plans are initiatives to decarbonize multiple sectors of the U.S. economy, de-risk relevant technologies, create jobs and economic opportunities, and increase participation in the continued development and use of clean energy technologies. This MYPP is at once an internal, operational guide, as well as a resource to communicate BETO’s mission and goals to stakeholders and to the public.
Evaluation of Performance Variables to Accelerate the Deployment of Sustainable Aviation Fuels at a Regional Scale
11/19/2022
An increase in jet fuel consumption and its associated emissions across the world have led to the need for alternative technologies to produce sustainable aviation fuels (SAF). One option to produce SAFs is to utilize waste or biomass-based feedstocks that has the potential to reduce greenhouse gas emissions by 50% or more compared to conventional jet fuel. However, there is a lack of understanding of how the synergistic effects of key performance variables could hinder or help the deployment of aviation fuels on a regional scale. Here, we assess the implications of key variables–including type and quantity of waste/biomass feedstock availability, cost of SAF production, life cycle greenhouse gas (GHG) emissions, policies, and fuel/infrastructure logistics–on the deployment of SAF at Chicago’s O’Hare International Airport. Our sensitivity analysis shows renewable fuel incentives and feedstock price to be key performance variables affecting the production cost and deployment of SAF.
Authors: Bhatt, A.H.; Zhang, Y.; Milbrandt, A.; Newes, E.; Moriarty, K.; Klein, B.; Tao, L.
U.S. Airport Infrastructure and Sustainable Aviation Fuel
2/26/2021
Worldwide, aviation accounts for 2% of all manmade carbon dioxide emissions and 12% of all transportation CO2 emissions In 2018, the U.S. accounted for 25% of the world jet fuel consumption and 21% of global enplanements. Airports and airlines are considering alternative fuel to meet environmental and sustainability goals and mandates. Sustainable aviation fuel (SAF), made from non-petroleum feedstocks, has the potential to significantly reduce emissions from air transportation. SAF must be blended with petroleum based jet fuel prior to its use in aircraft. This report explores background information on jet fuel use, quality standards and best practices, airport infrastructure, and options for delivering SAF to airports.
Authors: Moriarty, K. and Kvien A.