Loading Display / socket and display

Problem:
When you want to know in advance how much spend on electric bill?And which appliances spend the most?
Concept:
When you get started use, it will calculate the amount you use, the cumulative
number will be displayed on the panel, so that you can see, this way we can
do for the higher amount of electricity conservation.
Each socket has a number, placed at different locations in the home.
And corresponding to different electrical appliances.