"Hydrogen fuel cell technology is not a new development, and the use of these energy sources has, until recently, been in niche applications. Now, though, fuel cells are beginning to find their way into real automotive use as a means of facilitating the goal of ‘zero emission’ vehicles with supporting investment of significant proportions"
https://www.automotivemanufacturingsolutions.com/technology/a-future-for-fuel-cells/42772.article