(10 Jan 2023, 3:58 pm)streetdeckfan wrote The issue with Hydrogen is the generation of it. It takes an awful lot of electricity to generate the hydrogen, so unless you're using renewables to generate it, then it's not really that much better than diesel!

I might just be making these numbers up, but I remember reading that a hydrogen powered vehicle is around 50% efficient, compared to around 70-80% efficient of a battery electric vehicle.

Obviously hydrogen has a much higher energy density, a few orders of magnitude I believe, but there's a lot of energy wasted producing the hydrogen in the first place. If the electricity is produced by hydro, solar, or wind, then that doesn't really matter, but if they're burning coal or gas then it does!

Having said all that, I 100% agree that for anything other than 'local' routes, Hydrogen is the better option as the longer range alone can make the transition feasible.

Aye your right about the generation but I'm sure they'll eventually find a way around that. Not sure the bus companies care too much about the efficiency etc it'll be more about price and well actually being usable especially when it comes to HGV's as it just won't work electric charging ever as they don't have the time to just park up every 200KM or so.

But then again like you said we can't just connect every single car and bus to the grid either otherwise we'd have black outs. So whatever way we go for we need to change things and considering we have the cost of living crisis literally because of lack of gas which we use to power the grid then it's a major problem we need to sort regardless. No doubt by nuclear which won't go down with the environmentalists.