What is Bidirectional Charging or V2G Technology?

What is Bidi­rec­tion­al Charg­ing or “V2G" Technology? The Nis­san LEAF is able to sup­port the grid by stor­ing ener­gy for lat­er use and absorb­ing demand fluctuation. What is “V2G" and how does it work? What is bidi­rec­tion­al charg­ing? What cars enable...