Report to show the Amount of charge added each day/week/month/year (With multi vehicle split)
To keep track of how much energy the EVs consume over the Day/Week/Month/Year.
With the facility to apportion the use to different EVs (or that of a guest etc).
The benefit would be to allow users to work out the total energy/cost from Octopus that is put into your EV(s). Great for working out running costs etc..