Comments by "Jasper Mooren" (@jaspermooren5883) on "Climate Town"
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@MayaPosch there's actually a good reason to do this, and it's heavy industry. It's impossible to get the temperatures required to produce steel for example with electricity, since to do that you'd be melting the electric heating itself. Right now they run on methane gas, which is hot enough, but hydrogen would also work. So a clean energy solution is to produce hydrogen from clean electricity to then burn that hydrogen to create the extreme temperatures required. If the point is creating heat anyway, burning hydrogen is not actually that inefficient even. So it's also a good option for other industries that require loads of heat, particularly if these industries, which most do, run through the night when solar production is near 0.
Additionally, hydrogen is actually one of the best solutions currently available for clean energy storage on a large scale. Germany is already overproducing clean energy on good days (they are literally wasting energy on purpose because the grid would otherwise overload every summer), so the literally free energy could be used to create hydrogen to turn into electricity at night. Is it inefficient? Yes, but anything that's more than 0% efficiency is a win at this point. Batteries are just an absolute no go for anything of the size of the electrical demands of a nation and hydropower requires specific geography that is not available everywhere (which is a way better energy storage solution if the geography allows for it).
I firmly believe that hydrogen can actually be very important in the clean energy mix for this exact reason. Also hydrogen is actually fairly cheap to not run 24/7, yeah it increases the investment cost of the plant, but its operating cost are near 0 when not in use, so hydrogen production is actually very well suited to balance the load on an electrical grid. If we want to get through windless nights, we either need a globalised grid of extremely high voltage to transport electricity across the world (which would also have serious efficiency losses), or we need storage. And hydrogen is just one of the better storage solutions for energy available on the scale you need to store the demand of an entire nation for over 16 hours straight (sundown till sunrise in the middle of winter).
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