Shell Is Immediately Closing All Of Its California Hydrogen Stations | The oil giant is one of the big players in hydrogen globally, but even it can’t make its operations work here.::The oil giant is one of the big players in hydrogen globally, but even it can’t make its operations work here. All seven of its California stations will close immediately.
It can be through electrolysis, but it is almost never done that way. It’s less efficient than simply using the grid to charge batteries, in that usecase the ONLY benefit it has its energy density (and that might not last either).
In practice the main source is as a byproduct from refining fossil fuel like oil or gas which is separated and collected.