Did you know that in Danish gift means both poison and married?

Yes you're right, it's not *only* seasonal, but that is a really valuable thing it does that batteries don't. Swiss dams are usually running very low by spring, and being able to pump back up again makes it last longer.

I don't rule out airborne wind eventually taking off (to some extent), there are some compelling advantages but also so many challenges.

I don't think they intend it primarily to balance solar, the real value is seasonal. I agree on the other two points though. Pumped hydro is something I've been getting less excited about over the past couple of years as projects do seem to tend to cost more and take longer than promised.

Wait how do you get the thumbnail to show when you link a video? Mine don't seem to do that 😭

Not often that I find myself on the same side as fossil fuel companies! And in fact, I don't think that's the case here. I see heaps of support for dumb hydrogen stuff from fossil fuel companies because (in my opinion) working on these dead end techs delays the transition away from fossil fuels.