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U.S. EPA Phase 3 Greenhouse Gas Emissions Standards for Heavy-Duty Vehicles
9/1/2024
Heavy-duty vehicles (HDVs) contribute 25% of the U.S. transportation sector’s emissions. To reduce these emissions numbers, on April 22, 2024, the U.S. Environmental Protection Agency (EPA) published new greenhouse gas emissions standards for HDVs, requiring a 60% emission reduction per ton-mile of freight moved by up to 60% for vocational trucks and up to 40% for tractor trucks by 2032 compared with 2027 levels. This report details the projected benefits of the EPA’s ruling and highlights key elements of the plan, such as the emissions standards themselves, as well as finances, fuel use, electric vehicle battery logistics, and more.
Authors: Yihao Xie
Hydrogen Policy's Narrow Path: Delusions & Solutions
8/27/2024
This report examines the growing hydrogen fuel industry within the U.S., providing key takeaways regarding hydrogen’s role in a clean economy, as well as a series of demand-side policy recommendations to boost hydrogen’s uptake in competitive areas, and its adoption in applications where hydrogen is less likely to compete with other alternative clean energy technologies. Where possible, the report offers technology-neutral policy recommendations to support a widescale expansion of hydrogen use. The report ultimately summarizes hydrogen’s use in 12 end-use sectors, detailing hydrogen’s emission reduction potential, infrastructure requirements, social impacts, and strengths and weaknesses.
Authors: Dan Esposito
Hydrogen and Fuel Cell Technologies Office Multi-Year Program Plan
5/31/2024
The Multi-Year Program Plan sets forth the Hydrogen and Fuel Cell Technologies Office's (HFTO's) mission, goals, and strategic approach relative to broader clean energy priorities of the U.S. Department of Energy. Aligned with the priorities in the U.S. National Clean Hydrogen Strategy and Roadmap, the Multi-Year Program Plan identifies the challenges that must be overcome to realize the full potential of clean hydrogen and fuel cells and explains how HFTO's research, development, and demonstration activities will help to overcome those challenges in the near-, mid-, and longer-term.
Clean Cities and Communities Overview
4/26/2024
Clean Cities and Communities is a U.S. Department of Energy (DOE) partnership to advance clean transportation nationwide. More than 75 DOE-designated Clean Cities and Communities coalitions work locally in urban, suburban, and rural communities to strengthen the nation's environment, energy security, and economic prosperity. As partners with DOE's Vehicle Technologies Office, coalitions work to deploy affordable, efficient, and clean transportation; energy efficient mobility systems; and fuel-saving technologies and practices.
Fuel Properties Comparison Chart
3/20/2024
This chart compares the physical fuel properties and considerations associated with gasoline/E10, low sulfur diesel, biodiesel, renewable diesel, propane, compressed natural gas, liquefied natural gas, ethanol, methanol, hydrogen, and electricity for use as vehicle fuels.
Authors: Putzig, M.; Gonzalez, J.; Moriarty, K.; Brown, A.; Rahill, M.
Levelized Cost of Dispensed Hydrogen for Heavy-Duty Vehicles
3/1/2024
This short technical report from the National Renewable Energy Laboratory (NREL) examines a range of levelized costs of dispensed hydrogen (H2) from hydrogen refueling (or fueling) stations (HRS) for H2 heavy-duty fuel cell electric vehicles (FCEVs). NREL presents a cost range for infrastructure feasible within the 2030 timeframe and explores different scenarios by varying hydrogen delivery distances, HRS sizes, HRS utilization rates, and economies of scale in the Hydrogen Delivery Scenario Analysis Model (HDSAM) tool. These comparisons reflect how different supply chain components affect the levelized cost of dispensed hydrogen.
Authors: Justin Bracci; Mariya Koleva; Mark Chung
Simulation-Based Assessment of Energy Consumption of Alternative Powertrains in Agricultural Tractors
2/27/2024
This report developed simulation models for conventional, parallel hybrid electric, series hybrid electric, fuel cell hybrid, and battery electric powertrain technologies for agricultural tractors, analyzing the potential energy efficiency and emissions benefits as well as technical challenges for implementing the vehicles. The study showed that both the battery electric and fuel cell hybrid tractors have higher potential to reduce energy consumption and emissions, but currently have inherent technical challenges, while the parallel hybrid and series hybrid powertrain tractors have varying energy efficiency benefits depending on the tractor size and operating cycle conditions.
Authors: Lajunen, A; Kivekas, K; Freyermuth, V; Vijayagopal, R; Kim, N
Hydrogen and the Global Energy Transition - Path to Sustainability and Adoption across All Economic Sectors
2/8/2024
This article analyzes the role of hydrogen as a sustainable energy carrier in the global energy transition, providing an overview of current hydrogen technology and its applications across various industries, including transportation. Additionally, the article discusses the need for policy makers, industries, and researchers to collaborate to allow hydrogen technology to reach its full potential.
Authors: Cheekatamarla, P
Clean Cities Coalitions 2022 Activity Report
1/29/2024
The U.S. Department of Energy’s (DOE’s) Vehicle Technologies Office (VTO) works with local Clean Cities coalitions across the country as part of its Technology Integration Program. These efforts help businesses and consumers make smarter and more informed transportation energy choices that can save energy, lower costs, provide resilience through fuel diversification, and reduce emissions. This report summarizes the success and impact of coalition activities based on data and information provided in their annual reports.
Authors: Singer, M.; Johnson, C.; Wilson, A.
AFLEET Assesses Vehicle, Fuel, and Infrastructure Impacts
12/13/2023
AFLEET is a free tool from the U.S. Department of Energy (DOE) that fleet managers can use to quantify the environmental and economic impacts of new fuels and vehicle technologies. The AFLEET fact sheet explains how the tool works and how to access it.
Road to Zero: Research and Industry Perspectives on Zero-Emission Commercial Vehicles
5/19/2023
Medium-and heavy-duty vehicles comprise only a small fraction of on-road vehicles, yet disproportionately contribute to greenhouse gas emissions. This report provides an overview of the status, opportunities, challenges, and uncertainties for commercial zero-emission vehicles (ZEVs). A bright outlook for ZEVs is identified, and the report discusses remaining ZEV barriers and uncertainties around fleet decisions and changes to vehicle operation, infrastructure, manufacturing, and future fuel and technology trends that can be informed through analysis.
Authors: Muratori, M; Borlaug, B; Ledna, C; Jadun, P; Kailas, A
Electric Vehicle Charging Infrastructure Trends from the Alternative Fueling Station Locator: Fourth Quarter 2022
5/16/2023
The U.S. Department of Energy's Alternative Fueling Station Locator contains information on public and private nonresidential alternative fueling stations in the United States and Canada and currently tracks ethanol (E85), biodiesel, compressed natural gas, electric vehicle (EV) charging, hydrogen, liquefied natural gas, and propane stations. Of these fuels, EV charging continues to experience rapidly changing technology and growing infrastructure. This report provides a snapshot of the state of EV charging infrastructure in the United States in the fourth calendar quarter of 2022 (Q4). Using data from the Station Locator, this report breaks down the growth of public and private charging infrastructure by charging level, network, and location. Additionally, this report measures the current state of charging infrastructure compared with two different 2030 infrastructure requirement scenarios. This information is intended to help transportation planners, policymakers, researchers, infrastructure developers, and others understand the rapidly changing landscape of EV charging infrastructure. This is the twelfth report in a series.
Authors: Brown, A.; Cappellucci, J.; White, E.; Heinrich, A.; Cost, E.
Electric Vehicle Charging Infrastructure Trends from the Alternative Fueling Station Locator: Third Quarter 2022
3/9/2023
The U.S. Department of Energy's Alternative Fueling Station Locator contains information on public and private nonresidential alternative fueling stations in the United States and Canada and currently tracks ethanol (E85), biodiesel, compressed natural gas, electric vehicle (EV) charging, hydrogen, liquefied natural gas, and propane stations. Of these fuels, EV charging continues to experience rapidly changing technology and growing infrastructure. This report provides a snapshot of the state of EV charging infrastructure in the United States in the third calendar quarter of 2022 (Q3). Using data from the Station Locator, this report breaks down the growth of public and private charging infrastructure by charging level, network, and location. Additionally, this report measures the current state of charging infrastructure compared with two different 2030 infrastructure requirement scenarios. This information is intended to help transportation planners, policymakers, researchers, infrastructure developers, and others understand the rapidly changing landscape of EV charging infrastructure. This is the eleventh report in a series.
Authors: Brown, A.; Cappellucci, J.; White, E.; Heinrich, A.; Cost, E.
