A server that manages a plurality of moving objects, the server includes a processor configured to: determine an operation plan for each of the moving objects, and instruct each of the moving objects to operate according to the determined operation plan, the operation plan including a plan regarding energy replenishment for operation, determine based on the operation plan whether a conflict is going to occur, the conflict being two or more of the moving objects being replenished with energy at a same location at a same timing, and when determination is made that the conflict is going to occur, change the operation plan of at least one of the conflicting moving objects in such a manner that the conflict is avoided.