11, in the county of West Lane on the sidewalk, there are 4 groups of vertical charging pile, each charging pile is provided with 4 one-way AC sockets, each socket has two-way plug and three to plug all of a group of 4 vertical charging pile at the same time to the 32 electric car charging. It is understood that the charging pile by near commercial street management company set up, install centralized parking area in electric vehicles, in the commercial street business operators are free to use.