Well, I suppose hydrogen can solve a lot of problems ... but it raises quite a few as well.

Generation is easy, and has an extensive history, but nobody talks about it. You heat coal, biomass, whatever, with water, in an oxygen-limited environment, and you get hydrogen plus carbon monoxide (and assorted impurities). There's your hydrogen source, and you can capture the carbon if you want to. (My guess: the hydrogen economy is through the electrical grid, via coal.)

Distritubiton, on the other hand, is a mean old bear with a sore tooth. The current pipeline grid cannot handle hydrogen. Because hydrogen is highly reactive (corrosive); it either eats the pipeline it's being carried in, or escapes through the physical structure of the plastic pipelines that contain methane with ease.

(Cool aside: all coal-fired power plants truck in hydrogen to serve as the cooling medium for the collosal alternators that keep our lights on. Hydrogen's properties provide the optimum cooling-vs-windage [resistance] properties for this application.)

So stay tuned. But IMHO don't wait for hydrogen distribution or storage.