Yeah ubi, I get sthing like what you describe with the wires. I spent a year, last year, in the desert, mostly off the grid, and not a wire 20 miles from me. The flying dreams were hours of flying and exploring uninhabited wilderness -- forest, desert, mountain, gorges, coastline, etc. It was always pleasant and had the feeling of freedom that flying gives. I was able to keep track of time bc I wasn't in a deep sleep, but had the sense of bi-location on many nights.
Now that I'm back in a populous city, the flying dreams aren't so good. If my dream starts from here, I've got to stay focused or the dream goes wrong. The grid of wires has the effect of creating an electromagnetic field that traps my point of view, as though I'm a moving charged particle moving through a complicated network of interacting magnetic fields generated by the city's electrical infrastructure. Flying over the city-scape, I go through the electromagnetic vortexes that extend 100s of meters above the ground where they are generated, and times when I'm caught, I'm caught in a downward spiral, drawn into what is happening on the ground, and earth bound.