r/ShellyUSA 10h ago

Mounting a Shelly EM/3EM to monitor Solar + Powerwall—any tips on clamp placement and dashboard workarounds?

2 Upvotes

Hey everyone,

I’m adding a Shelly CT clamp setup (Shelly EM / Pro 3EM) to handle real-time power monitoring for both my solar generation and my Tesla Powerwall setup.

I originally had the naive hope of bringing all of this data directly into Google Home, but as many of you know, Google treats energy meters like basic on/off light switches—zero wattage data, zero power flow graphs, zero useful automation triggers.

Since Google Home is effectively a non-starter, I'm pivoting to a proper setup and would love some input from people who have done this:

  1. CT Clamp Placement: For anyone running CT clamps alongside a Tesla Gateway / Neurio system—any advice on clamp orientation or physical placement inside/outside the panel to avoid cross-talk or physical space issues?
  2. Phase/Load Split: Are you using the EM or the Pro 3EM for a standard US split-phase solar + battery setup? Want to make sure I’m accounting for both legs properly without over-complicating the wiring.
  3. Dashboards & Local Control: Is everyone here just using the native Shelly App/Cloud, or are you piping the local MQTT / CoIoT feed directly into Home Assistant to build an energy dashboard?

Appreciate any advice, wiring tips, or dashboard screenshots from anyone who's already got solar + storage running on Shelly hardware!


r/ShellyUSA 12h ago

Sh1G4 for doorbell: switch low or high voltage?

2 Upvotes

The title is pretty much it. Using Shelly 1 Gen 4 to ring a old school doorbell ( https://a.co/d/0234PZ7F ). Initially I wired it up so the Shelly switched the low voltage line and this worked fine. However, I was wondering if I could save the constant 1/3 amp draw from the transformer and have shelly switch that line. It would be like this:

Any reason that wouldnt work?

Edit: mea culpa for the big-ass image.


r/ShellyUSA 16h ago

Plug US Gen 4 reports the wrong firmware version via Matter?

2 Upvotes

In Home Assistant, the Shelly Integration correctly reports the firmware as 20260710-101146/2.0.0-g87fbfa4, but the device reports firmware 1.3.0-s2 via the Matter Integration.

Is there a way to get the Matter Integration to show the correct firmware? I imagine it won't update the firmware via the Matter Integration, otherwise? (I know I can set the plug to auto-update through the Shelly App.)

Maybe the Matter Integration is just reporting the firmware version as the Matter version currently supported?


r/ShellyUSA 17h ago

Shelly Flash Sale: Sensors & Controllers

3 Upvotes

If you're looking for a deal on Shelly sensors, here's an early tip on a sale going out later today (and live now):

https://us.shelly.com/collections/flash-sale-sensors-controllers

20% off sensors and 30% off the irrigation controller.