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Suggested Citation:"Appendix D: Statement of Task." National Research Council. 2010. Transitions to Alternative Transportation Technologies—Plug-in Hybrid Electric Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12826.
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Appendix D
Statement of Task

Plug-in hybrid electric vehicles (PHEV) are a transportation alternative that was not considered by the Committee on Resource Needs for Fuel Cell and Hydrogen Technologies in its recently issued report Transitions to Alternative Transportation Technologies—A Focus on Hydrogen. It is difficult to predict how rapidly PHEVs could penetrate the market because costs, consumer acceptance, and other factors associated with the technology are still very uncertain. Under this contract modification, the committee shall extend its analysis to include the potential impact of PHEVs on petroleum use and CO2 emissions. The committee shall assess the status of PHEV technology, develop a best-case plausible scenario for how PHEVs may enter the light-duty vehicle market, and use the models developed in its study to estimate the potential reduction of petroleum consumption and CO2 emissions that might result. Specifically, the committee shall:

(1) Review the current and projected technology status of PHEVs;

(2) Consider the factors that will affect how rapidly PHEVs could enter the marketplace (including the interface with the electric T&D system);

(3) Determine a maximum practicable penetration rate for PHEVs, consistent with the time frame and factors considered in the previous report;

(4) Based on tasks 1, 2, and 3, modify its model appropriately to incorporate PHEVs and develop and estimate impacts on petroleum consumption and CO2 emissions;

(5) Write a report documenting its study and assessment.

Suggested Citation:"Appendix D: Statement of Task." National Research Council. 2010. Transitions to Alternative Transportation Technologies—Plug-in Hybrid Electric Vehicles. Washington, DC: The National Academies Press. doi: 10.17226/12826.
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The nation has compelling reasons to reduce its consumption of oil and emissions of carbon dioxide. Plug-in hybrid electric vehicles (PHEVs) promise to contribute to both goals by allowing some miles to be driven on electricity drawn from the grid, with an internal combustion engine that kicks in when the batteries are discharged. However, while battery technology has made great strides in recent years, batteries are still very expensive.

Transitions to Alternative Transportation Technologies--Plug-in Hybrid Electric Vehicles builds on a 2008 National Research Council report on hydrogen fuel cell vehicles. The present volume reviews the current and projected technology status of PHEVs; considers the factors that will affect how rapidly PHEVs could enter the marketplace, including the interface with the electric transmission and distribution system; determines a maximum practical penetration rate for PHEVs consistent with the time frame and factors considered in the 2008 Hydrogen report; and incorporates PHEVs into the models used in the hydrogen study to estimate the costs and impacts on petroleum consumption and carbon dioxide emissions.

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