@sellathechemist @Sustainable2050 @urlyman @GetzlerChem @SusiArnott
1) 2nd law/Carnot efficiency for internal combustion engines or gas turbines does not apply to electrochemistry. Hydrogen fuel cells often "toss away" less than 1/2, not 3/4 of heat engines' +embodied energy".

2) 700Bar gaseous #H2 storage is good for many end uses; liquified #LH2 is a special case.

3) Underground #GH2 storage similar to current seasonal natgas case enables seasonal energy storage & dunkelflaute mitigation.

@jmtixhon

I could have saved SwRI’s client NYSEARCH a lot of money by showing them this 1968 NASA report⬇️: solubility of hydrogen in liquified natural gas (methane) is well below 1% (≈0.06% v/v).

So it is basically impossible to store economically useful amounts of #hydrogen in #LNG.
#H2 #LH2 #GH2 #methane #CH4 #natgas

@ScribblersEmporium

What "storage problem"?

Cost-effective gaseous #GH2, liquid #LH2 and cryo-compressed hydrogen #CCH2 storage methods are available for moderate amounts of H2.

Several avenues of underground storage are good for seasonal storage (think summer - winter) of massive quantities of hydrogen.

#Battery based #EV are a fad, scam and duds. Absolute cul-de-sac stopping us from implementing real solutions to get away from hydrocarbon-based ICEs.

We could absolutely switch/transition to #LH2 ICEs from diesel ICE tech (higher press manifolds than #gasoline), and do that for a long while, before we get to some Clarkes-3rd-Law solution (lol).

Die analysierten Länder und deren #Bereitstellungskosten einschließlich #Transport nach #Deutschland.

Die Kosten für die Produktion von Flüssigwasserstoff (#LH2), Ammoniak (#NH3), Methanol (#MeOH), #Kerosin (Jet fuel) und Fischer-Tropsch-Produkten (FT-Mix) sind mit zusätzlich errichteten #Erneuerbaren-Anlagen kalkuliert.

Für die kohlenstoffbasierten Energieträger wird #CO2-Abscheidung mittels #DirectAirCapturing (DAC) angenommen. (Bild: Fraunhofer ISE)