Abstract: One or more embodiments of a system for operating a vessel is provided herein. An illustrative system can include a plurality of power sources for operating the vessel. The power sources can include a battery bank and an AC power source. The system can also include an auxiliary device disposed on the vessel, wherein the auxiliary device comprises an electrical rotating source. Energy can be harvested from the electrical rotating source and transferred to the DC power source, a load of the vessel, or both. The illustrative system can also include a power management system that can include a processor; a data storage in communication with the processor; and a plurality of computer instructions stored on the data storage.

Abstract: One or more embodiments of a computer readable medium having computer instructions stored thereon for operating a vessel are provided. The computer readable medium can include computer instructions for monitoring a DC source; computer instructions for determining the most efficient power source to power a vessel; computer instructions for controlling an AC power source to allow transfer of power solely from the DC power source to power the vessel, transfer of power solely from the AC power source to power the vessel; or transfer of power from both the AC power source and the DC power source to power the vessel; computer instructions to determine when the DC power source is at a predetermined level; and computer instructions for controlling auxiliary devices of the vessel.

Abstract: A method for operating a vessel is provided. The method can include determining the most efficient power source from a plurality of power sources for operating the vessel. The power sources can include a battery bank and an AC power source. The method can also include drawing power from the most efficient power source to operate the vessel; harvesting energy from electrical rotating sources; monitoring the battery bank; and charging the battery bank when a state of charge of the battery bank drops below a predetermined state of charge, wherein the charging is performed using the harvested energy, the AC power source, an external power source, or a combination thereof.