Graphene is a wonder material. Even though it has probably existed from the birth of carbon, we are only discovering its properties in the last ten years. Now, it appears, that graphene can be used as to passively pull hydrogen from the air to fuel fuel cells. The ultimate decentralized autonomous power source, as long as it operates in a fluid like air or water. That covers a lot of the biosphere.
“Graphene-based Fuel Cell Membrane …” – IEEE
Pretending Not To Panic 