Fuel cell power and water generation

Methods and systems provide for the creation of power, water, and heat utilizing a fuel cell. According to embodiments described herein, fuel is provided to a fuel cell for the creation of power and a fuel byproduct. The fuel byproduct is routed to a byproduct separation phase of a power and water generation system, where water is separated from the fuel byproduct. The remaining mixture is reacted in a burner phase of the system to create additional heat that may be converted to mechanical energy and/or utilized with other processes within the system or outside of the system. According to other aspects, the separated water may be utilized within a biofuel production subsystem for the creation of biofuel to be used by the fuel cell.