Yeah, that's pinch-butt inducing just watching it. Yikes, I'm afraid of falling off my roof when I go up there. Plus, the storm clouds full of lightning... yikes.
I do fieldwork for archaeological projects... photography, etc... mostly rock art sites, sometimes on cliffs. I've had to work on ropes over sheer 200 ft drops before. Exhilarating and terrifying at the same time, even with the help of mountaineering guides. Whether its a cliff or transmission tower, you need to remember the basics... always know where your hands and feet are going, don't cross your feet and don't forget your damn tools.