The combination of making drops rarer and doubling the repair costs will reduce the overall amount of energy in the game. I cannot remove energy immediately, because it will just take some time until people have used it. I also don't want to overdo things, the aim is to find a balance between energy entering and leaving the game. Reducing the energy drop rates is not needed imo. It's easier to just change the repair costs, because that results in energy directly leaving the game. Also, corrupt items will have half the charges, so they won't produce that much energy anymore.