You can make your gadgets more green by using sustainable energy, something this green by using sustainable energy. something this solar cell factory in sweden is taking to the next level. this machine is printing custom nano ink onto solar panels, and they don t even need the sun to charge. don t even need the sun to charae. ~ ., .,, ., charge. we have developed our own nano charge. we have developed our own nano inks, charge. we have developed our own nano inks, and charge. we have developed our own nano inks, and in - charge. we have developed our own nano inks, and in this - own nano inks, and in this machine own nano inks, and in this machine we will print that ink on the machine we will print that ink on the proprietary substrate. how on the proprietary substrate. how is on the proprietary substrate. how is the end result on the usage of it different? it is sort of like usage of it different? it is sort of like artificial - sort of like artificial photosynthesis. w