Yes, all of industry will move to Africa, at great expense, to get the free solar.

Energy input is just one portion of a businesses expenses.. even if this business was fully dark (all robots, since you're not going to get all your HQP to move to Africa), you still would like to have that business somewhat interconnected to the supply chain.

Many businesses won't exist long enough to hit the ROI needed to uproot to move to someplace extra sunny and to pay for the full install of the power required to be fully off grid.