Vehicle to grid concept emerged as one solution for harnessing the idle power of parked plug-in hybrid electric vehicle. As the public parking lot had been evolving into the vertical parking lot which has more capacity within the same grounding area, a vehicle to building technology provided more available energy to be shared into the designated area around the parking lot. This paper discussed the development of vehicle to grid into a better concept and architecture by integrating the vertical parking lots one another and also with renewable energy sources (photovoltaic) and sophisticated energy storage system. Several standards were suggested in this paper to ensure a steady performance of vehicle to grid parking. At last, the collaboration scenario was proposed between the parking lot management and plug-in hybrid electric vehicle owner to ensure the technical viability of vehicle to grid implementation for both host and participant. This sharing concept optimized community energy management system as the root segment of the smart city and smart grid delivery system.