As I said in the link Wireless WiFi with MESH and point 5, you can use PLA adapters to lead the network through the 220V system
However, would like to recommend the following:
Historically, people have had a preference for Satellite TV via all these rusty and more or less bulky satellite dishes on the roofs.
I want to say that this is technically pure ”anno dazumal”, but despite this, architects, installers and builders have a penchant for these cable scams and still focus on the fact that this is a must – yes maybe for all these outdated British citizens.
Tear out all these coax cables in their electrical pipes. Mount the plates on ceilings and exterior walls. Use the electrical pipes instead of pulling in the ”future” with RJ45 (network) cabling. Or why not offer the fiber supplier to lead the fiber that way. Axartel is very ”clever” and in many cases uses the tubes for the most often phased-out telephone tubes. Then you usually get all the way to the TV bench where it is most optimal to place the router.
You who still put effort into renovation, make sure to supplement with electrical pipes in the walls and pull down to the existing or intended fiber installation, you will not regret it. Now think of an extra time and pull out cable ducts for the placement of your TV bench and feel free to put a patch panel in a wall cabinet nearby. The TV has more and more become a central point in the home. There they place AppleTV, GoogleTV (new Chromecast) and as I always say: wireless in all glory but cable is optimal in these streaming times.
But above all, avoid as several contractors here in Nerja belly do. To place the patch panel in an electrical cabinet inside the main entrance and close a WiFi router behind a shielding sheet metal door.
Nice but useless