While container ships are the cheapest way to transport goods across long distances, at the same time it is the most polluting alternative. Transporting and loading/offloading of the containers uses low grade bunker fuel, releasing 260 times more pollutants into the atmosphere than the whole car fleet of the world. Energy saving options are urgently needed here.
The cranes at container terminals use the same fuel as the cargo ships themselves to lift containers. When lowering them, their energy is led to resistor banks and gets lost. Now, Vatche Artinian, an electric engineer from California, has developed a new kind of motor which by incorporating magnetic levitation technology collects the energy released while lowering the containers to reuse it for the next container.
This new kind of generators is not only useful in container transportation. It can be used as well within the uninterrupted power supply at data centres and servers, for example to replace lead-acid batteries. The magnetic levitation technology at the same times renders the generators free of maintenance and wearout.