If you have the ability to put that many mirrors in space then you could just put the solar panels in space and beam the energy down to Earth as microwaves like

If you have the ability to put that many mirrors in space then you could just put the solar panels in space and beam the energy down to Earth as microwaves like this. https://www.space.com/space-solar-power-satellite-beams-energy-1st-time https://www.space.com/space-solar-power-satellite-beams-ener...