[bazodedo]

Tbh, i've encountered residental areas where the houses happen to have exposed roofs. I suppose that might be one of them places you could throw those panels.

Regarding the amount of rare earth required to make just one solar panel, i was surprised to find out that effectively all you need is something called 'silicon' as well as an initial investment in energy to bake the thing.

It just so happens to be that, according to google, this 'silicon' stuff is quite abundant and can for example be found in desert sand.

Since you can stack those fusion reactors vertically, i suppose they'd come out on top in the power/sqft category.