Pross
Senior Member
You don't know much about this or how to use Google do you.
Green hydrogen is produced via electrolysis. It's not very efficient compared to using the electricity directly, but this isn't a problem if there is an excess of green energy available. For large-scale production, there isn't, so it's a problem. However potentially less of a problem for some applications than fossil fuel use.
Blue hydrogen is produced by steam reforming fossil fuels, combined with CCS - with the CCS part being Ed Bendytoy's pet project. I personally think it is a technological dead end.
In neither case is hydrogen "split".
Saudi Arabia is busy using its oil wealth to build commercial scale green hydrogen using all that solar energy from those thousands of square miles of desert to corner the future market whilst the US regresses more and more to its dependence on fossil fuels. If only the US had examples of previous great powers falling by the wayside by sittings on the laurels and assuming they would remain powerful. Unfortunately the UK will probably be dependent on the likes of Saudi in future decades which would be far from ideal.