Futurology

It will be very interesting to see at what price they can commercialize this. Converting excess renewable energy into long-term storage is a necessity for a 100% renewable electricity grid. The toughest problem for an all-renewables grid is the rare times that there are extended periods of low wind and backup solutions are needed to keep the electricity grid going. There are many, many researchers all around the world working on this problem, and this is yet another promising possibility.