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  • 29-Mar-2012 11:01 EDT

Real time Renewable Energy Availability for EV Charging

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Battery Electric Vehicles and Extended Range Electric Vehicles, like the Chevrolet Volt, can use electrical energy from the Grid to meet the majority of a driver�s transportation needs. This has the positive societal effects of displace petroleum consumption and associated pollutants from combustion on a well to wheels basis, as well as reduced energy costs for the driver. CO2 may also be lower, but this depends upon the nature of the grid energy generation. There is a mix of sources � coal-fired, gas -fired, nuclear or renewables, like hydro, solar, wind or biomass for grid electrical energy. This mix changes by region, and also on the weather and time of day. By monitoring the grid mix and communicating it to drivers (or to their vehicles) in real-time, electrically driven vehicles may be recharged to take advantage of the lowest CO2, and potentially lower cost charging opportunities. Recently, Onstar has demonstrated a system which rivers establish a renewable energy preference for their Volt and help them to use renewably generated electricity to recharge their cars.

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Peter Savagian, General Motors

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Technical Paper / Journal Article
2012-02-23
APPLICATION OF ELECTRIC VEHICL
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