Find publications about alternative transportation, including alternative fuels, advanced vehicles, and regulated fleets.

Search Results | 4 publications
Title Author Date Category
The Future of Biofuels in the United States Transportation Sector Geissler, C; Ryu, J; Maravelias, C 12/29/2023 Journal Articles & Abstracts

Princeton University, Princeton, New Jersey; University of Wisconsin-Madison, Madison, Wisconsin

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.

A Deep Decarbonization Framework for the United States Economy – a Sector, Sub-Sector, and End-Use Based Approach 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 12/8/2023 Journal Articles & Abstracts

Argonne National Laboratory, Lemont, Illinois

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.

Evaluation of Performance Variables to Accelerate the Deployment of Sustainable Aviation Fuels at a Regional Scale Bhatt, A.H.; Zhang, Y.; Milbrandt, A.; Newes, E.; Moriarty, K.; Klein, B.; Tao, L. 11/19/2022 Journal Articles & Abstracts

National Renewable Energy Laboratory, Golden, Colorado

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.

U.S. Airport Infrastructure and Sustainable Aviation Fuel Moriarty, K. and Kvien A. 2/26/2021 Reports

National Renewable Energy Laboratory, Golden, Colorado

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.