Cement block condo is super-expensive, but could in principle work (for a short time) if anybody was dumb enough to buy one. The crane thing won't even work if

Cement block condo is super-expensive, but could in principle work (for a short time) if anybody was dumb enough to buy one. The crane thing won't even work if there is any wind at all. But there is always wind. (Maybe they could build a dome over it?) Losses are almost irrelevant when top-line generation is so cheap. So, even though round-trip efficiency of hydrogen is low, it doesn't matter; you just add a few more panels. I.e., losses increase capex but not opex.