Topics / Working paper

Most Recent

Evaluates the costs and benefits of using contracts for difference (CfDs) to support the production of bio-CNG from dairy farms in California.

This case study shows that the actual CO2 reductions of 18.6% achieved in the 2018 Camry exceed the 17.7% reductions predicted by EPA models. This confirms that the OMEGA and LPM models accurately predict both new technology benefits and synergies between technologies. It also suggests that other studies contradicting EPA model outcomes are inaccurate and underpredict future technology benefits.

Explores some of the compliance pathways available to heavy duty vehicle manufacturers. Specifically, this paper develops hypothetical technology packages for certain types of tractor trucks, vocational vehicles, and trailers using distinct technology strategies compares cost-effectiveness.


Evaluates alternative regulatory pathways for India’s agricultural tractors and construction equipment on the basis of air pollutant emissions.

Publication: Working paper

Advances in lightweighting (mass-reduction) designs and technology have surpassed projections made for the U.S. 2025 vehicle CAFE/GHG standard. Overall, weight reduction of ~15% should be feasible by 2025, at costs about one-third of 2012 estimates.

Publication: Working paper

Assesses the potential for energy crops to displace food crops in four countries in Europe and evaluates the relative profitability of these crops compared to existing food crops.

Publication: Working paper

Surveys the existing literature on methodologies related to the certification of low ILUC biofuel projects through different measures. It also assesses the potential challenges, risks, and loopholes that could arise from the use of these methodologies.

Publication: Working paper

Identifies auto markets with highest electric vehicle shares by region in the U.S., including smaller and medium size metropolitan areas. Analyzes electric vehicle promotion actions in place that are accelerating market development in the leading markets.

Publication: Working paper

An analysis of trends and developments in turbocharged, downsized gasoline engines since the 2017–2025 light duty GHG/CAFE rule written by EPA and NHTSA in 2012.

Publication: Working paper

Compares the uptake of a range of vehicle technologies such as variable valve timing, gasoline direct injection, turbocharging, stop/start, as well as transmission and hybridization technologies in the U.S. and EU in recent years.

Publication: Working paper

MEPC’s 70th session will consider two topics that may greatly reduce the amount of HFO used in the Arctic: a global marine fuel sulfur cap of 0.5% (currently it is 3.5%), and whether or not HFO use in the Arctic should be formally placed on the MEPC agenda. This paper provides key information needed to evaluate the potential risks HFO has to the Arctic environment.

Publication: Working paper

An analysis of trends and developments in thermal management technology since the 2017–2025 light duty GHG/CAFE rule written by EPA and NHTSA in 2012.

Publication: Working paper

This paper provides an analysis of transmission technology development and trends, and compares them to the projections made by EPA and NHTSA for the 2025 CAFE regulation.

Publication: Working paper