Found this interesting on the ffrr forum from someone at Cummins in Rugby;
Cummins are not only making fuel cells but also the electrolisers to produce Hydrogen. They are targeting green hydrogen.
In Canada they are using hydro power to run a 5Mw Hydrolyser. On the plains of Spain a solar farm is being built - right next to it a Cummins Hydrolyser to use all the excess electricity in Hydrogen production.
Fuel Cells and Electrolisers are all scaleable. You want more power, add another fuel cell etc.
There are many delivery / refuse / long haul trucks using Cummins powertrains out testing. All Fuel cell powered.
Cummins are not just doing the fuel cell, they are doing the full control system, motors, drive systems etc.
There's an experimental trains in Germany running on Cummins Hydrogen fuel cells.
They don't have the weight penalty of batteries - something Lord Bamford mentioned.
Quick to refuel (compared to batteries).
At the moment there are many times wind farms and solar farms produce more power than the demand - that power can all be used to make green hydrogen.
Cummins are also involved with Hydrogen storage solutions because We need the whole package from production to storage to use.
As time an technology advances the cost of hydrogen will come down.
End!
Also we can make hydrogen as a byproduct from Steelmaking we’re about 5yrs away with investment in the Netherlands from having a hydrogen plant. No natural gas involved