Energy customer switching
Energy customer switching is a concept stemming from the global energy markets. The concept refers to the action of one energy customer switching energy supplier, a switch is essentially seen as the free (by choice) movement of a customer. In addition to that a switch can include:

A re-switch: When a customer switches for the second or subsequent time. A switch-back: When a customer switches back to his/her former or previous supplier.If a customer moves, there is often a switch, however this will only be counted if the customer is not dealing with the incumbent in the new area of residence. The above is the official definition of switching and is being used by public energy institutions such as CEER & ERGEG (forerunner to ACER).