Comment by jeffbee

This seems like a solution looking for a problem. If the power companies were satisfied about the safety issues of this idea, which are obviously many and severe, then they would also be satisfied with simply mounting a charging platform for the drone atop the tower or pole where the HV line runs, which cuts out a lot of the uncertainty regarding the drone's autonomous guidance.

Also, the whole idea triggers my reflexive skepticism about any technology that seeks to remove the last human from the system. Usually there are exponentially increasing costs to removing the next human, and at some point it's not worth it. People want (wanted) to make sealed, autonomous data centers maintained by robots and it just isn't worth it. Even in manufacturing where robotic automation is ubiquitous and advanced there are still tons of humans.