Or they could just use a non-harmless power and focus it on large on-ground receiver stations. Could use some security on the satellites like interrupting autom

Or they could just use a non-harmless power and focus it on large on-ground receiver stations. Could use some security on the satellites like interrupting automatically the beam on sensing an unpredicted movement (up to when a "continue" greenlight message is received, after needed corrective steps). Other possibility is to use stratospheric balloons as receiver stations. Could then use softer power links to the ground. Would some system of cables be doable then? (I wrote that in the optics of a Dyson's sphere [thus connecting space solar stations to an on-ground power grid] instead of the proposed direct powering of drones.)