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Jeffrey Rosenfeld
Senior Consultant, Transportation and Energy
Jeffrey Rosenfeld is an expert in alternative transportation fuel policies with a specific focus on the Renewable Portfolio Standard, California Low Carbon Fuel Standard (LCFS), and Oregon Clean Fuels Program (CFP). His work focuses on the regulatory, technical, and economic drivers for conventional and alternative fuels and advanced vehicle technologies.
Jeffrey has a deep understanding of the cost and environmental implications of alternative transportation fuels and technologies. He has performed technical assessments of alternative fuels and vehicles, developed production and refueling infrastructure assessments, performed lifecycle (or well-to-wheel) analyses of the greenhouse gas impacts of transportation fuels, and quantified the air quality impacts of vehicles in the light-duty and heavy-duty sector. Jeffrey has submitted both LCFS and CFP carbon intensity pathways for approval. These pathways have included landfill gas, manure, and other anaerobic digester feedstocks; wastewater treatment for renewable natural gas and hydrogen production; and waste feedstocks to liquid biofuel production.
Jeffrey led a study for the California Electric Transportation Coalition comparing medium- and heavy-duty (MD/HD) technologies from a total cost of ownership standpoint. He developed technology implementation scenarios to understand the emissions benefit potential from MD/HD electrification and what penetration levels would be necessary to meet air quality standards and emission goals. The report also contains an economic impact analysis of MD/HD electrification including employment and economy-wide impacts.
Jeffrey has a master's in civil and environmental engineering from Stanford University and a bachelor's in chemical engineering from Georgia Institute of Technology. He is a co-author of “The greenhouse gas benefits of corn ethanol – assessing recent evidence.”  

Insights by Jeffrey Rosenfeld