Nikola also has the business model of buying electricity when it's cheap (solar) and storing it in a moveable medium (hydrogen) without carbon emissions.
It doesn't matter that it takes more energy: The point is that it can be stored or put into trucks.I don't think this will work. It takes more energy to extract hydrogen(from whatever, hydrocarbons or H2O) than what you get out of it.
I have no idea how much tanks for hydrogen cost but they can't be cheap to make.Tanks for hydrogen aren't easy to make, but they are easier (and much cheaper) to make than batteries.
If that were the case it would have already happened.The kwh to kg of even low pressure hydrogen storage makes it desirable for big transport like trucks and ships because it doesn't displace carrying capacity.
I don't know how much they cost, but I know they weigh about 25-30kg for every 1kg of hydrogen stored. Nikola holds 80kg. The effective energy density of compressed hydrogen is only around 1,400Wh/kg not counting the weight of the HFC.I have no idea how much tanks for hydrogen cost but they can't be cheap to make.
Show me some figures on how much hydrogen storage tanks cost.
I'm also curious what will happen when one of these hydrogen trucks is in a bad accident. We could call it "the Hindenburg effect".
If that were the case it would have already happened.
No, it isn't. Low pressure hydrogen has a very low volumetric density. High pressure hydrogen has a low gravimetric density. You either lose physical space or weight capacity.The kwh to kg of even low pressure hydrogen storage makes it desirable for big transport like trucks and ships because it doesn't displace carrying capacity.
Any pressure buildup in the tanks would open the over pressure valve and all he hydrogen would escape. And if that failed, composite tanks rupture, they don't explode.Good point. But because it is compressed it would cause dangerous shrapnel from the tanks when ignited and an explosion occurs.