I came here to point out nuclear and fusion also. Lets say you can get the energy cost to near zero, the the 200+ euros left per meter sq could be cut down by

I came here to point out nuclear and fusion also. Lets say you can get the energy cost to near zero, the the 200+ euros left per meter sq could be cut down by looking for construction or scaling efficiencies and even the fact that if energy is near zero from nuclear or fusion power, it might end up lowering construction costs if it can be diverted into use in heavy machinery. I'd love to see this same experiment powered by a small Thorium prototype reactor.