> "Not to mention maintenance of such long cable will be real hard" Not really. You'd have to do periodic helicopter patrols of the lines themselves. There isn

> "Not to mention maintenance of such long cable will be real hard" Not really. You'd have to do periodic helicopter patrols of the lines themselves. There isn't really that much "maintenance" that occurs on the line, definitely on the xfmrs/rectifiers/inverters though, but that is normal for any transmission/substation owner. Also, expected losses are ~5%