Microwaves are fairly harmless, I'd be more worried about disrupting the ozone layer or other weird climate effects. You manage the beam intensity by having th

Microwaves are fairly harmless, I'd be more worried about disrupting the ozone layer or other weird climate effects. You manage the beam intensity by having the collection area and the exclusion zone around the collection area be so large that the whole thing is entirely pointless and you could just use regular PV and concentrating solar.