[zenith]

The contest is to see who can use as much of their maximum potential energy for Christmas. So for example, say you get 10 energy every 5 minutes. In an hour, that's 12 refreshes, or 120 energy. So if you use 119 of the energy you gained in one hour, you are at 119/120 for the hour.

If you use energy refreshes in the donator house, you can boost your percentage. But if you do this once, you no longer qualify for the non-refresher group. So there are two sets of groups, the refreshers and the non-refreshers.