altPVC

"The photovoltaic cell is old news. The latest way to exploit the sun is through tiny materials that can directly convert sunlight into large amounts of hydrogen."



Basically these new nanotech-based hydrogen bearing cells can produce hydrogen very much more cheaply with scalability. It wouold be a decentralised source of hydrogen power [and once the idea of brew your own gets off the ground it muist be a winner].



There are problems; corrosion is one and improving the efficiency for extensive usage is another, although at 10% efficiency ther are cheaper already in production costs.