Wireless or wired SmartHome? What about the radiation?

Hello everyone,

we are currently extensively renovating a house from the 70s. We have been thinking for several weeks about how to approach the whole thing with the electrics and smart home.
As part of the renovation, electric roller shutters are to be installed.
At the moment, we live in a rental apartment with electric roller shutters, in which I have partially had Shellys installed. The lighting works via various lamps (Yeelight, Philips Hue, Osram socket adapters, etc.). Additionally, there are some Amazon Echos, and it is somewhat like we imagine it.
The configuration was partly tedious and the system is also not 100% stable. However, this is most likely due to the still poor WLAN network.

Dependencies on execution of actions (e.g., closing roller shutters when there is sunlight, etc.) are not very relevant. It is more about maybe 10 roller shutters, 15 lights, and 15 sockets.

The question is whether a wired system (bus) or wireless!?

For us, the impact of "wireless" radiation on our health also plays a role. Of course, wireless internet access via several access points should be implemented everywhere. Nevertheless, we find it difficult to assess whether smart wireless devices are much more harmful to health than wired ones? Or whether the wireless devices make the damage to health even worse because of that.

Another alternative is, of course, EnOcean – how is it in that regard? Can health-damaging radiation be significantly minimized with it?
Are there other technologies that we currently do not have on our radar?

PS: Of course, we are aware that except for the EnOcean technology, everything also means a higher power consumption.

Best regards & thank you

There is no harmful radiation from Wi-Fi, not even health-endangering. Your phones, which you use daily, are much larger sources of radiation...

Zigbee and EnOcean are the most power- and airtime-efficient systems.

Wired is of course the best solution if you are somewhat paranoid about electromagnetic radiation. Wired is generally always preferable to wireless; you have already recognized the advantages beyond the "radiation." In general, all these devices operate in power ranges that are completely stress-free.

Therefore, a counter-question: Do you completely turn off your phones at home? Is your house electromagnetically shielded? Are there insulation measures on electrical lines? If any of these questions are answered with no, you absolutely do not need to worry about the rest. The biggest emitter in the house is usually the phone with poor mobile reception, and these exact frequencies from 700 to 2600 MHz also come relentlessly from outside through the walls.

For my company, I once wrote a small treatise regarding the emissions of "Sentinel Haus" on the topic of smart home wireless standards and their "dangerousness." The self-proclaimed "best-informed" customer has since gone silent forever.

The question is whether a wired system (bus) or wireless after all!?

For the "trivial" applications, go for a bus system? That's like using a nuclear bomb to shoot sparrows.

"Radiation," that is electrical and magnetic fields, occurs everywhere in the house. With every household appliance, every lamp, etc. None of that is serious. Nor are the WLAN solutions serious.

Every cable is an antenna and emits radiation. Every device emits on different frequencies. Every power supply even radiates back into the fixed wiring, which in turn acts as an antenna - and that is much more massive than anything that is wirelessly transmitting in home automation - no matter which protocol.

Zigbee and EnOcean are the most power-saving systems in terms of performance and airtime.

Wired is of course the best solution if you are somewhat paranoid about electromagnetic radiation. Wired is generally always preferable to wireless; you have already recognized the advantages beyond the "radiation." Generally, all these devices operate in power ranges that are completely stress-free.

Therefore, a counter-question: Do you completely turn off your phones at home? Is your house electromagnetically shielded? Are there insulation measures on electrical wiring? If any of these questions are answered with no, you absolutely don’t need to worry about the rest. The biggest emitter in the house is usually the phone with poor mobile reception, and these frequencies from 700 - 2600 MHz also inevitably come through the walls from outside.

NO, we are normal people :-D

Wired is generally always preferable to wireless; you have already recognized the advantages beyond the "radiation."

Do you mean because it is more secure in terms of stability?

For the "small stuff" applications going with a bus system? That’s like using a nuclear bomb to shoot sparrows.

Yes exactly, that’s kind of how we think! But we are afraid that all the WLAN might get out of hand and therefore maybe it’s better to go wired after all... On the other hand, as I understand it, you would need a separate cable for each switchable light with a bus system. With Shellys or WLAN lamps, for example, you can simply switch directly at the device itself; then a separate cable is not necessary, and branched power lines could be used as well.

@ALL: Is a bus cable really worth the extra effort?

Best regards & thanks