“There’s a natural hierarchy somehow, you should use electricity as electricity for all the cases you can. Of course, that’s obvious. But when you cannot use electricity, you need to convert it to something else. And then hydrogen is a very good candidate.”Kasper Therkildsen
This was the answer from Kasper Therkildsen, Head of Technology at Green Hydrogen Systems, during an interview and tour when asked about the low efficiency of using electricity to make hydrogen relative to just using electricity directly.
Likely applications for hydrogen (Kasper anticipates transportation, industrial purposes and in some cases process heating).
There’s a benchtop demonstration of alkaline water electrolysis, how much more efficient it can get (and how, and how quickly).
Is it realistic that the price of hydrogen can come down as fast as it is predicted to? According to Kasper:
Thanks to Kasper Therkildsen and the rest of the team at Green Hydrogen Systems for patiently answering questions! https://greenhydrogen.dk/