Roller shutter wiring - Smart home

So, as I said, a turnkey construction with a building contractor... they give a price for their equipment... then there is a list with surcharges like e.g. stairs to the attic, photovoltaics, underfloor heating, etc. The standard for us was roller shutters with a strap. Of course, I don’t want a strap in the new house... so I looked at what to do... their mixed surcharge for a roller shutter motor was €300 x 20 windows = €6000 extra cost. I find that quite steep. At first, I wanted to have empty conduits installed for €100, but apparently, the contractor later guaranteed that they would not be crushed and remain continuous during the construction phase. Then I looked into the radio motors. Well, now I decided to have 230V laid everywhere; they charge €100 just for the power supply line so that I can connect the radio motor myself later. Wall transmitters should then be on the walls later. But since I look forward-thinking, I want to know if it’s not better if the power supply line comes from the control cabinet. Who knows what will come in the future. The mixed price also includes chiseling or grinding. I myself work in an electrical company, but low voltage. But the surcharges are really steep.

I personally don't find 300€ for the motor too much. Normally, the carved supply lines and a switch directly on the roller shutter are included.

In my opinion, the direct lines from the control cabinet only make sense if you plan to install a smart home system via bus. Otherwise, switching is done via radio module directly on the motor, and the planned routing from an existing 230V circuit is sufficient.

Future-oriented via radio. I see. You're laying cables anyway, so what's with the radio stuff? Switch on the wall and that's it. Star-shaped distribution is not future-oriented if the operation can't keep up. Moreover, with radio, it's obsolete anyway. You still have a serious conceptual knot in the system.

For those planning to grow old in their own home, it is worthwhile to take a closer look at the radio, app, and KNX control logic and panels from the perspective of an elderly person. The large switches on the wall near the device remain operable. Other solutions sooner or later leave us puzzled, and the supposed gain in comfort turns into a curse. We are around 50 and have observed this in recent years with my parents-in-law, now also with my parents and their circle of friends. Remote controls are puzzling, automations lead to stress (why are the blinds going down/up now, is something broken?), and apps need updates, suddenly look different than before and cause frustration. Simple solutions often have advantages.

I find the question exciting whether radio technology is future-proof or not. I even believe that radio systems will replace wired BUS systems. Similar developments are already taking place in i4.0 in automation and data collection in the manufacturing environment. Maximum flexibility with as little stationary wiring as possible is the goal. Until then, we need 5G.

Due to completely different motivational reasons and issues