TechnologySolar panels could be about to get much better at capturing sunlight Silicon-based solar cells have a theoretical efficiency limit of around 30 per cent, but adding a perovskite layer enables new designs to harvest more energy 51¶¯Âþ
EarthGold hydrogen: Is there a huge reserve of clean fuel in Earth's crust? Geologists think there may be vast natural stores of hidden hydrogen gas within Earth, but no one is sure how much there is or how much could be recovered for energy 51¶¯Âþ