Methanol for fuel cell as long-term storage in the house

I came across a really coherent concept that can make my house independent from the electricity provider even in winter - it's called methanology. The idea is simple and logical: in summer, you produce methanol with the photovoltaic surplus, which is stored as a long-term storage. In winter, you combine a fuel cell with an AC-coupled battery storage for peak loads and, for example, a heat pump. If the production is not sufficient, you can buy methanol. This way, it can succeed to manage without an external electricity provider in your own house. I'm looking forward to the first series! What do you think?

Sounds like quite a lot of technology. What is that supposed to cost for, say, 10 KW photovoltaic and 5 KW nominal heat output?

The idea is simple and logical: In summer, methanol is produced using the photovoltaic surplus, which is stored as a long-term storage. In winter, a fuel cell is combined with an AC-coupled battery storage for peak loads and, for example, a heat pump. If production is not sufficient, methanol can be purchased. This way, it can succeed to be independent from an external power supplier in one's own house. I am curious about the first series! What do you think about it?

Sounds like a great idea again, from which only the seller benefits. What does this cost initially? What about operational costs? Are self-consumption costs considered? Is there already a prototype that was supposed to be built with crowdfunding?

There is nothing at all on this yet, only a prototype. "They are supposed to" and "they could" are so far the most commonly used words in connection with it. Prices can occasionally be found, but they are in the range of 200,000 to 300,000 CHF for the first series-ready system. And if you don’t have a biogas plant in your garden, CO2 and its price are the interesting factors here. Otherwise, it is probably not unlike Picea, which has already been thoroughly dissected here multiple times.

That sounds a bit like Dry-Cell, where electricity is produced from water to generate knallgas, which can be used for heating.

In theory certainly good, but such things are usually rarely economical.

Then better go straight for ethanol. You still have a bit of fun in winter.