I can see how they have a kind of beauty in a laboratory or industrial plant or something.
But as part of nature? Set across an landscape otherwise made of plants and trees and hills?
For me, that's a million times no. I can't think of anything uglier or more jarring. The cold gray angular lattice skeleton feels like it couldn't be more opposite to all of the positive aesthetic qualities of nature.
I highly recommend a tour of your local electricity distribution substation, you will learn a lot about how the modern world operates. If you can visit one of the main power plants then that's even better.
I think they're ugly and unfortunate in the UK; in the parts of North America I've seen there's so much large visible infrastructure that they blend right in, it's a kind of 'where do you start' situation if you want to prettify them. I think there should just be some sensitivity to context, i.e. what we've already done to nature.
They really don't blend in. The ground around them is cleared of trees (of which there are many, everywhere in NA that I've lived) which makes them stick out like a sore thumb. For a time, I lived near the top of a hill, and the nearest pylon to my house has a honkin' bright flasher at the top. Usually, this wasn't an issue, but the park nearby would often get thick fog at night. Nothing like walking through a lovely foggy wooded park, pulsating with a bright omnipresent flash every 10 seconds.
Of course, it's better than a plane hitting the house in the fog.
The point of the colors is precisely to be highly visible. If you become incapacitated the last thing you want is to blend in with the surroundings. You might also notice that there's very few skiing outfits that are mostly white, or swimming suits that are mostly blue. To only reason someone would want to be more difficult to see is if they're trying to sneak up on someone.
> Most people seem to view electricity pylons as a blight - ugly landmarks towering over the landscape.
I don't view them as ugly either. There is some beauty in truly functional design imo.