In this concept the devices are sorted in to groups; household appliances, water and lighting. They are represented by different coloured icons. Under each group, the appliances can be also selected separately.

Trying out different colour uses. The title corresponds with the colour of the icon

The title is the same color of the icon. Also, I think that it is easy to know which page you are on. I decided on this this type of chart because it is fairly easy to understand. Also the amounts that are largest are darker, which is also another way of understanding the chart. I like that the chart matches the specific group by using the same colour