Jeremy Rifkin calls it for hydrogen fuel cells
"We are on the cusp of a new energy regime that will alter our way of life as fundamentally as the introduction of coal and steam power in the 19th century and the shift to oil and the internal combustion engine in the 20th century", argues Mr Rifkin in an interview with the EUobserver.
"The hydrogen era looms on the horizon and the first major industrial nation to harness its full potential will set the pace for economic development for the remainder of the century."
The way I see it, he’s right about renewable energy, at least in the long-term. But on the storage end, the struggle is between hydrogen fuel cells and advanced lithium/ion/nano/whatever batteries.
Which do y’all think it will be? Fuel cells or batteries?