hydrogen powered combustion engines are on the horizon.
tho some questions remain.
what will the fuel be?
- high pressure hydrogen tanks
- ammonia (which can produce hydrogen on demand)
- methane
The Brazilians run their cars on alcohol made from sugar cane.
Where does the hydrogen come from? There aren’t any hydrogen wells or hydrogen reservoirs. So what’s left? Steam methane reforming is the most common method, but it uses hydrocarbons and releases CO2 as a byproduct. HORRORS!!! Electrolysis of water is very energy intensive. Compressing the hydrogen is very energy intensive and where does this energy come from? In the USA 60% from fossil fuel.