Assessment of Vehicle to grid power as power system support

Currently large scale electricity energy storage is in the form of pumped hydro-electric storage. By contrast, Electric Vehicles (EVs) with transportation as their primary function, when parked could be connected and aggregated in large numbers and used either as a form of controlled load or generation. EVs customers could be offered cheap tariffs to encourage storage utilization e.g. During a shortage of power, value can be derived through delivery of energy back to the grid in the form of Vehicle to Grid (V2G) power, by participation in the GB electricity market through the provision of balancing services.