I'm curious : where does the hydrogen come from ? You mean you could use it as energy storage between summer and winter ? (in summer, excess of solar / wind pro

I'm curious : where does the hydrogen come from ? You mean you could use it as energy storage between summer and winter ? (in summer, excess of solar / wind production is used to produce H2 by Electrolysis (https://en.wikipedia.org/wiki/Hydrogen_production#Electrolysis https://en.wikipedia.org/wiki/Hydrogen_production#Electrolys... ), then you store H2, and then next winter you consume it to produce energy again ? Not sure it works well, because those reactions are not 100% efficient (so you have to take that loss into account, requiring more energy production) and then transporting/storing hydrogen is hard : - either you compress it and you don't transport many of if - either you cool it to make it liquid and then it takes a lot of energy