farms are anticipated to result in circuits running out from and returning to the harvesting station s the navigational planning for the circuits will include assisting ocean current data and will be recalculated during the voyages by the control systems on the individual farms and or input from the centralized control stations the plants affixed to the rope grids would be harvested with the bio matter obtained transferred to the harvesting station for processing and or transport if harvesting methods are employed which do not compromise the attachment and body of the plants on the grid the farm returns to its predetermined sailing station for the next growth cycle if harvesting results in complete removal of the mature plants from the grid the harvesting station u201c replants u201d the farm by attachment of immature plant u201c seedlings u201d to the grid the farm then commences its voyage to create new plant growth the harvesting station is then either sailed to an off loading port 32 or specific transportation ships 34 off load the bio mass from the harvesting station for transport to the off loading port the generated bio mass is then available for processing as energy feedstock or food stuffs fig5 provides a flowchart of the operation the farm elements of the system defined by the disclosed embodiment each farm would self position in a.