Date Added: Nov 2011
Plugin Hybrid Electric Vehicles (PHEVs) are set to be the defining trend in road transportation for the 21st century. Unfortunately, the process of charging a large number of PHEVs will put a prohibitive amount of stress on conventional power grids. As per current estimates, it will not be possible to satisfy the peak demand of charging millions of PHEVs with current infrastructure. Additionally, to ensure stability of the power grid, the demand needs to be closely matched with supply all the time. This is difficult to ensure in a dynamic scenario like PHEV charging, where it is not possible to predict the load in the future. This problem is further complicated by the introduction of intermittent sources of alternate energy like wind power.