With Powerline I simply meant the use of the power cables (no matter what for).
Yes, we already understood you. But it is very suitable for transmitting high voltages; for data, however, only for isolated solutions and not for complete building automation.
I personally try to avoid LAN as much as possible.
For what reason? General aversion to cables?
But okay, technically it probably wasn’t achieved to use the power network cleanly. Because a star topology is indeed the "cleanest" in terms of speed and peer-to-peer communication, but the most complex in hardware implementation.
Well, basically yes, but nobody really needs it. It has more disadvantages than advantages.
I don’t mean that every meter of cable is so expensive. But for example, let’s say the attic is expanded afterward. Then you have to pull cables throughout the entire building so you can supply the attic.
Where do you see problems now? I don’t see any.
With a power network that wouldn’t have been necessary.
Certainly yes, it is also necessary to pull additional cables with existing power cables on the roof, provided you want to operate more than just a few lamps.
With radio also not.
Of course, here as well. For radio you also need an infrastructure. For the roof you then need additional workstations etc., which are usually more expensive to purchase and operate than a cable costing 36 cents per meter.
Okay, so you should ideally plan an enormous number of cable routes very, very early and know exactly where each device should go. And where which piece of furniture belongs. And then a conduit in every room for safety? The planning really becomes very complex.
Building a house should not be taken lightly anyway. Why the electrical trade is still treated so negligently is incomprehensible to me. A typical builder usually deals much more thoroughly with choosing tiles or planning a kitchen.