D-energy

Our solar system is so many years old.Which means it is move with time(move in 4th dimension). Our solar system consist boundary,surrounding so we can say this one system. Now,Question is that for the system energy must be required for move in any dimension. so our solar system also required energy for moving from birth to till days, so from where our solar system get energy? ( if the law of energy conservation is true! )   

The law of energy conservation say that "the total amount of energy in the universe is constant." right Now,for movement in 4th dimension(along the time) energy is required and we all need this... But when we consider Universe as a isolated system then then energy can not be transferred through universe according to concept of isolated system. So energy is not required for universe for the movement in 4th dimension(along the time). So energy is required for us &it is not required for universe how is this possible?? What u say???