Letting the power company decide when you should charge (or discharge to the grid)
Smart Charge and V2G are Charge Control technologies that let the power company control a plug-in vehicle's charging or discharging in real time:
It also enables both the owner and the power company to track the plug-in vehicle's usage and performance, while on the road and while charging.
In both V2G and Smart Charge, the power utility can control the power flow between a plug-in car and the power grid. However, in Smart Charge power only flows from the grid to the car, while in V2G power can flow in both directions.
Charge Control system diagram
In Charge Control (Smart Charge or V2G), a fleet of plug-in vehicles is fitted with Charge Control hardware, plus, optionally V2G.
The Charge Control hardware is connected to the the servers of a company that manages Charge COntrol through the Cell Phone network and the Internet. The owners, the utilities and research organizations have access to data from each plug-in vehicle. In addition, the utility can disable charging, or request discharging (V2G).
Example of a status report for a plug-in vehicle with Charge Control, available in real time through the Web.