The only concerns i can think of are is if it crashes to the ground. I guess that's why they're taking about having it over ocean or in rural areas, would be cool to have these above the city though
Skipped through most of it because I'm not an electrical engineer, the authors conclusion makes it seem that it's an issue of infrastructure. More accurately, getting electricity into cities (HV Power lines) and not generation capacity. Can anyone with more knowledge on electrical grids provide a more succinct explanation of the figures in the articles, it's above my head.
The only concerns i can think of are is if it crashes to the ground. I guess that's why they're taking about having it over ocean or in rural areas, would be cool to have these above the city though