A number of sources, including oil companies and natural gas producers. The best bet will be from developing electrolysis, and the best source of electricity for that will be nuclear powered plants.
Nature’s lightest element continues to capture the world’s imagination as a clean, plentiful and potentially cheap energy source. Hydrogen’s current burst of popularity is the result of global action to combat climate change.
www.forbes.com
We're about 8-10 years away from cheap sources even without the nuclear plants, which is actually sooner than all the wind and solar farces can get truly productive, if ever. From the link:
Fortunately, there’s a much lower risk way to bet on hydrogen. In fact, the most promising players already have secure and growing earnings, and many pay generous and growing dividends as well.
Basically, they’re the same companies that today dominate "conventional" energy now. At the top of the list are the super major oils, which today are deploying windfall profits from oil and gas sales to launch hydrogen and carbon capture development.
Also up there are leading utilities and electricity generators. They’ll enjoy a massive potential new source of contracted and/or regulated power sales, magnified by the fact that energy needed for electrolysis is much greater than what’s in the hydrogen produced.
Not only do these companies have the scale and financial power to dominate hydrogen as they have energy in general the past century plus. But if the hydrogen dream is again derailed by inability to bring down costs enough, they’ll still prosper and reward investors with rising share prices and dividends.
There are already hydrogen fuel stations up and running in Cali.
www.truezero.com