the grid. what if that source of energy was totally clean, and powered by simple tap water? well, a greekientist claims to have created a machine that converts water into power. as part of our occasional "innovation" series, special correspondent malcolm brabant traveled to the inventor's island home. >> reporter: physicist petros zografos spent 30 years trying to work out how, using minimal energy, he could break down the water molecule, h20, into its component parts: hydrogen and oxygen. now, he thinks he's cracked it, with this, his mini power station, which he hopes will help reverse global pollution. >> ( translated ): since i have children and grandchildren-- my son has just made me a grandfather-- i cannot go on watching this planet being so violently abused. >> reporter: george shoell, from southern germany, whose company makes solar panels, is interested in helping develop and market zografos' invention. he headed out of athens for a nearby greek island, to inspect it for the first time. >> for the people, this would be exactly what they want, exactly what they can use at home. b