Achieving policy targets for reducing greenhouse gas (GHG) emissions from transportation will likely require significant adoption of battery-electric, plug-in hybrid, or hydrogen fuel cell vehicles. These vehicles use electricity either directly as fuel, or indirectly for hydrogen production or storage. As they gain share, currently disparate electricity and transportation fuels supply systems will begin to converge. Several studies consider impacts of electric vehicle recharging on electricity supply or comparative GHG emissions among alternative vehicle platforms. But few consider interactions between growing populations of electric-drive vehicles and the evolution of electricity supply, especially within particular regional and policy contexts. This dissertation addresses this gap. It develops two modeling tools (EDGE-CA and LEDGE-CA) to illuminate tradeoffs and potential interactions between light-duty vehicles and electricity supply in California. Near-term findings suggest natural gas-fired power plants will supply marginal electricity for vehicle recharging and hydrogen production. Based on likely vehicle recharging profiles, GHG emissions rates from these plants are more than 40% higher than the average from all generation supplying electricity demand in California and 65% higher than the estimated marginal electricity emissions rate in Californias Low Carbon Fuel Standard. Emissions from power plants supplying vehicle recharging are usually highest from 5pm-8pm, when they are 20% higher than their typical low value, from 2am-4am. Plug-in hybrid vehicles are 25-42% more efficient than conventional.


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    Title :

    Assessing Vehicle Electricity Demand Impacts on California Electricity Supply


    Contributors:

    Publication date :

    2009


    Size :

    194 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English




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