The invention relates to a decentralized system comprising energy consumers and energy sources, the utilization of which is monitored, controlled and optimized using a computer-supported method. To this end, at least three agents are provided, wherein an agent is associated with an internal system energy network to which the energy consumers are connected. An agent is assigned to a mobile energy source and at least one other agent is depicted on the computer of a fixed docking station for mobile energy sources, said station being connected to the internal system energy network. A plan is generated in the system for optimized energy utilization at least on the basis of the energy amount that is stored in the mobile energy source and based on the energy consumption. Then, the energy flow between the mobile energy source connected to the docking station and the energy consumers is regulated based on the generated plan. The plan is generated and the energy flow is regulated by said agents.