[cyri]

Impressive idea. Hope they get a better efficiency factor.

On a side node, you can already add Hydrogen to your home. There is a startup in Berlin, DE which sells complete systems for home: solar roof, heat pump, electrolysis device, bottles and ventilation system.

During summer you fill the bottles with H2 and during winter you consume it.

I'm not affiliated with them. The price before Corona for the whole system was around 65k Euro and now around 100k Euro.

https://www.homepowersolutions.de/en/product/ Picea is the name

[oezi]

Nice! So it seems demand is so high they can increase their prices.

Do you know what the capacity of a single system is? Could one unit be shared between multiple residential units?