Re: Anyone here from Germany? What exactly are your electricity costs?
I think you missed the point about storage, you can store hydrogen just as you store natural gas, it can be turned into liquid as LNG, it can be stored in pressure tanks it can even be stored in salt caverns.
I had to look it up, and LNG is a lot colder than I expected (-162 oC). But Liquid hydrogen gets much closer to absolute zero. There's already a shortage of LNG capacity, and it takes years to expand. Pressure tanks will work, but at the same pressure, you can store less energy (because the molecule is much smaller). Underground storage could be interesting, maybe it can even be pumped into empty natural gas fields.Quote
And there you have it, use that energy to produce hydrogen, rather than throwing it away or letting that sunlight go to waste as it heats the roofs when you don't need it
I don't think there's an economically viable option right now, since it happens only a few hours per year.Quote
in the Netherlands I think you actually have few options left, it's not like you can build a pump storage dam anywhere to store energy.
We use Norway for that 