Our Work
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LNG Well-to-Tank Emission Factors
EERA assessed the well-to-tank (WtT) greenhouse gas emissions from the LNG supply chain for eight countries exporting to the European Union.
This study compiles over 600 emission factors to present detailed insights into process and country-level emissions, as well as the energy-weighted emission factor considering all import countries.
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GREEN-T
EERA developed the GREEN-T model for MARAD to assess intermodal (water, rail, and truck) transportation emissions.
GREEN-T calculates pollutant emissions and helps users identify low-energy, low-carbon routes and transport modes and assess Scope 3 supply chain emissions.
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Ocean-Going Vessel Decarbonization Technology Assessment
EERA developed a comprehensive Technology Assessment for alternative fuels for ocean going vessels. This work focused on methanol, ammonia, hydrogen, biofuels, and supplemental power technologies, including analysis of fleet uptake, well-to-wake greenhouse gasses, technology costs, and technology readiness.
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SAFE-T
The Ship Alternative Fuel and Emissions Toolkit (SAFE-T) enables users to track Scope 1 vessel greenhouse gas emissions, estimate Scope 3 marine transportation greenhouse gas emissions, and compare properties of alternative marine fuels.
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LNG in the USA
This project assesses the potential of LNG as a transitional fuel for achieving net zero emissions in shipping, focusing on its applicability within a U.S. and North American context. It examines regulatory environments, economic factors and investment trends, technologies and infrastructure, and social justice concerns.
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LNG and Shipping in the Arctic
This project charts the present and anticipated utilization of LNG in shipping throughout Arctic waterways, identifying Arctic nations and ports facilitating LNG trade and bunkering. It examines the current energy landscape and evolving stances of Arctic governments regarding natural gas commitments, alongside global market trends. Additionally, it visualizes the locations and capacities of the LNG fleet, energy trade and bunkering operations in the Arctic region.
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Real-World NOx Emissions from Ships and Implications for Future Regulations
This research paper presents real-world measurements of ship exhaust plumes to estimate nitrogen oxides (NOx) emissions, suggesting the need for revised regulations to effectively mitigate air pollution from maritime activities.
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Options for Reducing Methane Emissions from New and Existing LNG-Fueled Ships
This report examines technologies and policies aimed at reducing methane emissions from ships using liquefied natural gas (LNG), emphasizing the need for improved regulations and technological advancements to address the life cycle environmental impact of LNG as a marine fuel.
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EPA Shore Power Technology Assessment
EERA was a lead author of the EPA Shore Power Technology Assessment in 2022.
The Shore Power Technology Assessment provides a detailed review of current and planned high- and low-voltage shore power connections in the U.S. This report includes an assessment of emission reductions, lessons learned from stakeholders, a technology review, and a calculator for users to calculate emission reductions from using shore power. Read more https://www.epa.gov/ports-initiative/shore-power-technology-assessment-us-ports