US DOE updates 45ZCF-GREET modelling tool

The US Department of Energy (DOE) Bioenergy Technologies Office (BETO) has announced that it has "removed barriers" to domestic bioenergy production by updating its 45ZCF-GREET modelling tool to account for new feedstocks and methods of production, including ethanol from corn wet-milling and natural gas from coal-mine methane.

Jun 3, 2025 - 14:30
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US DOE updates 45ZCF-GREET modelling tool

These measures will allow a wider range of farmers and companies to do business in America’s thriving alternative fuels market.

This is a major win for the US farmer and rural America. Once again, President Trump and his administration are growing markets and opportunities for farmers and rural America to flourish, said Senator Roger Marshall (R-KS).

First developed by Argonne National Laboratory (ANL) in 1994, the “Greenhouse gases, Regulated Emissions, and Energy use in Technologies” GREET suite of models assesses the life cycle impacts of technologies, fuels, products, and energy systems across various stages of the supply chain.

Today, there are multiple GREET models for specific use cases that guide decision-making, research and development, and regulations related to the transportation and energy sectors. The models are freely available for industry to use and play an integral role in DOE’s research, development, and deployment efforts.

The 45ZCF-GREET model has been adopted by the US Department of the Treasury to help transportation fuel producers assess their eligibility for 45Z.

The Trump Administration is committed to helping American fuel producers make the most of our country’s abundant biomass resources. The latest version of the 45ZCF-GREET model will allow more of our farmers to reap the benefits of a rapidly expanding market for alternative transportation fuels, said Principal Deputy Assistant Secretary for Energy Efficiency and Renewable Energy Lou Hrkman.

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