I get a periodic update by e-mail from Riversimple based at Llandrindod Wells in Wales. They are still plodding on with their Hydrogen fuel Cell car, RASA, in Wales. It is an odd looking beast. They seem to be very good grant getters and crowdfunders, and currently have trials going on in Monmouthshire of 20 of their vehicles. They have a hydrogen fuelling point in Abergavenny.
The big advantage of hydrogen is its range, its biggest drawback being the infrastructure, and the logistics and inefficiency in distribution when compared to the charge at home via the grid advantage of battery electric vehicles.
Another advantage Hydrogen has as an energy store is that, unlike current batteries using scarce resources such as Lithium and Cobalt, Hydrogen is the most abundant element in the universe. Hydrogen has the highest specific energy density of any non-nuclear power source. Proponents say it is inexhaustible and can be created using many sources, including surplus grid power, bio plants and emission-free intermittent renewables.
..and our Chinese friends are by no means piutting all their eggs in the battery electric vehicle basket as this article testifies...