United States
Investigating the Investments Required to Transition New Zealand’s Heavy-Duty Vehicles to Hydrogen
Mar 2021
Publication
Reducing greenhouse gas emissions in the transport sector is known to be an important contribution to climate change mitigation. Some parts of the transport sector are particularly difficult to decarbonize; this includes the heavy-duty vehicle sector which is considered one of the “hardto-abate” sectors of the economy. Transitioning from diesel trucks to hydrogen fuel cell trucks has been identified as a potential way to decarbonize the sector. Howev Read More
Review of Electrofuel Feasibility - Cost and Environmental Impact
Jun 2022
Publication
Electrofuels fuels produced from electricity water and carbon or nitrogen are of interest as substitutes for fossil fuels in all energy and chemical sectors. This paper focuses on electrofuels for transportation where some can be used in existing vehicle/vessel/aircraft fleets and fueling infrastructure. The aim of this study is to review publications on electrofuels and summarize costs and environmental performance. A special case denoted as bio-electrofuels in Read More
A Methodology for Quantitative Risk Assessment of a High-capacity Hydrogen Fueling Station with Liquid Hydrogen Storage
Mar 2025
Publication
Hydrogen fueling stations are critical infrastructure for deploying zero emission hydrogen fuel cell electric vehicles (FCEV). Stations with greater dispensing capacities and higher energy efficiency are needed and cryogenic liquid hydrogen (LH2) has the potential to meet these needs. It is necessary to ensure that hazards and risks are appropriately identified and managed. This paper presents a Quantitative Risk Assessment (QRA) methodology for high-cap Read More
Relationship Between Clay Minerals and Microorganims in Underground Hydrogen Storage Reservoirs: A Mini Review
Feb 2025
Publication
Hydrogen (H2) will play a vital role in the global shift towards sustainable energy systems. Due to the high cost and challenges associated with storing hydrogen in large quantities for industrial applications Underground Hydrogen Storage (UHS) in geological formations has emerged as a promising solution. Clay minerals abundant in subsurface environments play a critical role in UHS by providing low permeability cation exchange capacity and stability Read More
Techno-economic Analysis of a Renewable-based Hybrid Energy system for Utility and Transportation Facilities in a Remote Community of Northern Alberta
Jun 2023
Publication
Many off-grid communities in Canada are dependent on diesel generators to fulfill their utility and transportation needs causing destructive environmental impact. This study aims to optimize and investigate the technoeconomic feasibility of a hybrid renewable energy system to satisfy the 1.6 MWh/day electricity 184.2 kWh/day thermal and 428.38 kg/year hydrogen demand simultaneously Trout Lake a remote community of Northern Alberta. A novel hybrid Read More
Fuel Cell Technology Review: Types, Economy, Applications, and Vehicle-to-grid Scheme
Feb 2025
Publication
This study conducts a thorough review of fuel cell technology including types economy applications and V2G scheme. Fuel cells have been considered for diverse applications namely electric vehicles specialty vehicles such as warehouse forklifts public transportation including buses trains and ferries. Other applications include grid-related stationary and portable applications. Among available five types of fuel cells PEMFC is presently the optimal choic Read More
Cost-effect Scheduling of a Hydrogen-based Iron and Steel Plant Powered by a Grid-assisted Renewable Energy System
Feb 2025
Publication
The iron and steel industry contributes approximately 25% of global industrial CO2 emissions necessitating substantial decarbonisation efforts. Hydrogen-based iron and steel plants (HISPs) which utilise hydrogen-based direct reduction of iron ore followed by electric arc furnace steelmaking have attracted substantial research interest. However commercialisation of HISPs faces economic feasibility issues due to the high electricity costs of hydrogen p Read More
Review - Engineering Challenges in Green Hydrogen Production Systems
May 2022
Publication
Today hydrogen (H2) is overwhelmingly produced through steam methane reforming (SMR) of natural gas which emits about 12 kg of carbon dioxide (CO2) for 1 kg of H2 (∼12 kg-CO2/kg-H2). Water electrolysis offers an alternative for H2 production but today’s electrolyzers consume over 55 kWh of electricity for 1 kg of H2 (>55 kWh/kg-H2). Electric grid-powered water electrolysis would emit less CO2 than the SMR process when the carbon intensity for grid Read More
A Multi-model Assessment of the Global Warming Potential of Hydrogen
Jun 2023
Publication
With increasing global interest in molecular hydrogen to replace fossil fuels more attention is being paid to potential leakages of hydrogen into the atmosphere and its environmental consequences. Hydrogen is not directly a greenhouse gas but its chemical reactions change the abundances of the greenhouse gases methane ozone and stratospheric water vapor as well as aerosols. Here we use a model ensemble of five global atmospheric c Read More
Recent Progress on Ammonia Cracking Technologies for Scalable Hydrogen Production
Jun 2024
Publication
The global energy transition necessitates the development of technologies enabling cost-effective and scalable conversion of renewable energies into storable and transportable forms. Green ammonia with its high hydrogen storage capacity emerges as a promising carbon-free hydrogen carrier. This article reviews recent progress in industrially relevant catalysts and technologies for ammonia cracking which is a pivotal step in utilizing ammonia as a h Read More
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