There's also the Picea from a German company that offers hydrogen storage for homes: https://www.homepowersolutions.de/ https://www.homepowersolutions.de/ You

There's also the Picea from a German company that offers hydrogen storage for homes: https://www.homepowersolutions.de/ https://www.homepowersolutions.de/ You actually buy their product already, but the investment and maintenance cost still require a good deal of idealism. But maybe in a couple of years this becomes interesting...