Even 400 stories would be 600 kwh. Thats like 2 tesla battery packs. Way better than 6 but still not anything that can be realistically applied at scale. There

Even 400 stories would be 600 kwh. Thats like 2 tesla battery packs. Way better than 6 but still not anything that can be realistically applied at scale. There's not many deep mineshafts that aren't filled with water. And dewatering mines is insanely expensive. And 600 Kwh is nothing. Enough to power maybe 30 houses for a day. My math is bad, but there's no math where this will ever work out profitably