I would just add that among the major economies, with the possible exception of China, Japan is really the most aggressive in trying to diversify its energy sources. It's not all in one direction; it's everything at once. Their current situation is only leading them to see it as even more urgent that they reduce their demand for oil and move on to other things. It's the whole panoply, including nuclear in the future and various forms of renewables. They are probably the ones who are most interested in hydrogen in its variations.
