Technology that can efficiently turn sunlight and water into energy has long been seen as the Holy Grail of science. The conversion of solar energy into hydrogen is one of the answers to the question of how to provide an effective alternative to fossil fuels and thus end our dependence on oil. Nocera’s invention could even help save the planet, by turning around global warming. Furthermore, in light of the events at Fukushima, Japan, it might also prove to be a safe replacement for nuclear energy. However, this is all wishful thinking at the moment. The technology, although highly promising, is still in its early stages of development. In the near future, it could provide energy to people in remote areas of sunnier countries.