a direct current bus management system can include a power management and distribution unit , having a source management section , a bus management section coupled to the source management section , a load management section coupled to the bus management section , a dc bus coupled to the power management and distribution unit , a plurality of dc sources coupled to the source management section and a plurality of loads coupled to the load management section , wherein the bus management section is configured to reconfigure excess dc power on the dc bus from the dc inputs from the plurality of dc sources based on a plurality of priorities , a plurality of feedback signals and a plurality of system parameters .