The bulk power transmission network (the electricity grid) will move the power long distances, sometimes across international boundaries, until it reaches its wholesale customer.

On arrival at a substation, the power will be stepped down from a transmission level voltage to a distribution level voltage. As it exits the substation, it enters the distribution wiring. Finally, upon arrival at the service location, the power is stepped down again from the distribution voltage to the required service voltage(s).

Although energy is transported it might also be stored until needed in the grid.