New Home: Shelly in every switch?

    • Autor

    Hello folks,

    I'm (re)building our new home and designing the power and networking (ground up). We like actual power switches etc. so my thinking is to place a Shelly Plus device behind each switch and in some of the power outlets, and a few Shelly Pros in the wiring closet.

    This way, we can operate our home via standard switches but can still overlay with automated scenarios - kind of a hybrid system.

    This type of design will bring the total to at least 50-60 Shelly devices in an area of ~200 sqm.

    WiFi provision will be via a few Ubiquiti APs.

    Is this a common / reasonable setup? Do people have this level of density of Shelly devices? Should I expect good performance out of this setup?

    How about power intake (idle)? heat dissipation? other consideration I'm not thinking of?

    Any insight (including "don't do that!!" - I can still change stuff around... 8) ) would be greatly appreciated!

    Hello ,

    the number of Shelly itself is not a problem. I have over 90 in use.

    With the AP's there are some threads in which the users report problems (mostly in German). Try the search (activate German threads in your profile!) If necessary, Google Translate is your friend. ;)

    • Autor

    Hello 66er

    Zitat von 66er

    the number of Shelly itself is not a problem. I have over 90 in use.

    Thanks. That's very helpful. Let me ask you though - if you were to design a power system for a new house, from the ground up - would you still choose this way? Or would you opt for another topology (e.g. even fully wired, such as Homematic Wired)?

    Zitat von 66er

    With the AP's there are some threads in which the users report problems (mostly in German). Try the search (activate German threads in your profile!) If necessary, Google Translate is your friend.;)

    Just did and indeed people have issues there - seems like Shelly and UI are on it though. Need to have the setup thoroughly tested before installing.

    Thanks again!

    The radio propagation in the area to be served is important.

    Back then, I started with 1 central unit and 1 contact and tested several locations for it.

    Homematic radio cannot be expanded as easily as with WLAN.

    The Shellly came at just the right time. But the Homematic radio components that are still in operation also work reliably. (approx. 60 components).

    Wired just requires more cabling, I think everyone has to decide for themselves.


    You're welcome. :)

    My humble opinion on “smart homes”:

    It is smart to keep essential electrical installation simple and decentralized!

    Think twice before you start complicating facilities that must work reliably to make your home habitable.

    Will a normal electrician be able to understand and repair your electrical installation if you are not able to do so (anymore)?

    A normal light circuit can be repaired by any electrician, apart from the fact that it is very unlikely that such a circuit will ever break.

    However, if you switch all light in your home via “hidden” WiFi actuators, the system quickly becomes unmanageable for outsiders who don’t have the overview which devices talks to which ones (over a router, which only you have access to).

    An installation that only you are able to maintain can be more of a burden than a help when you get older, or when you want to sell your home etc.

    Some more considerations you can find here:

    https://www.home-assistant.io/blog/2016/01/1…ome-automation/

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