[alinutza]

Make a link which will buy you 1 energy point and another link for 2 energy points. After gaining X energy points it gets more expensive; after 2X EP even more expensive..just like the currrent system

And if full energy refreshes are used, when the X amount is reached, using energy refreshes go to the next price...

Now X is the number you(admins) have to decide upon and i gues it must be divided by the total energy you can have

idk, just an idea