It is linked to 1 kg of hydrogen. WPP is a company known in the green energy industry which is selling power generation products. And they will launch a eco system called HyFi a platform for selling energy with tokens. As I m working in the energy industry I like this idea very much. Special the link to the CO2 free power production. I see here a very big potential and further more a change in an old fashioned industry which might occur. Also the link between energy production and crypto is not yet done so far. This is a innovative concept which might fly.