Wireless power transmission using Tesla's buried technology.
Nupower, Texzon, and Viziv have been experimenting with Tesla technology and Zenneck waves as a means of wireless power transmission. If they are successful, then it could be a game changer regarding power delivery, cost, and accessibility.
Chairman & CEO of NuPower, Daniel Alderman, talks about the the health and safety regarding the technology about 14 minutes and 35 seconds in on this video. Although it is asserted by Mr.Alderman that these towers are safer than standard radio towers, they will, in fact, output very low and or extremely low frequencies (VLF/ELF). There are some schools of thought that subscribe to the idea that ELF technology can be used for nefarious purposes, such as controlling the moods and or behaviors of people. You can read more about those kinds of theories Here; and Here is some more information about Zenneck surface waves.