Valuation of electric vehicle batteries in vehicle-to-grid and battery-to-grid systems
Technological Forecasting and Social Change(2012)
摘要
Batteries are responsible for the major share of costs of electric vehicles (EVs). However, they are idle most of the time during vehicle use and expected to retain a significant capacity when discarded from vehicle use. As a result, they may provide an additional value during and after their vehicle life, helping to reduce their total costs of ownership. We use a dynamic model to evaluate three competing approaches of using EV batteries for grid applications. These are (1) batteries installed in EVs, also known as vehicle-to-grid (V2G), as well as (2) used and (3) new batteries installed in stationary energy storage systems (ESS), which we refer to as battery-to-grid (B2G). We find that none of the approaches is likely to be implemented on a large scale as the anticipated revenues barely (if at all) offset the additional costs incurred by the corresponding applications.
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关键词
Vehicle-to-grid,Battery-to-grid,System dynamics,Economic modeling,Technology forecasting,Technology evaluation
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