Functions

Some functions are needed for my 'clock' interface.

Users should be able to see the rate of their energy use against their average.
I plan to do this with a circular percentage bar thing. It will progress around the outside of the clock against the users average energy use. As it reaches 100% it will turn more red and at 100%> the whole outside of the clock will be red. This will let users know at a glance how they are doing against their energy use.

Apart from just the percentage rating I want to show people the times during the day they are using the most energy. Theres not much point telling someone that at 4 am they are on track if they use most of their energy after 5pm for example. therefore a second interface option would be to show each individual hour against the average for that hour alone.