this post was submitted on 23 May 2025
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Home Assistant is open source home automation that puts local control and privacy first. Powered by a worldwide community of tinkerers and DIY enthusiasts. Perfect to run on a Raspberry Pi or a local server. Available for free at home-assistant.io

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Energy usage clamp meters (feddit.uk)
submitted 9 hours ago by GreatAlbatross@feddit.uk to c/homeassistant@lemmy.world
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As I'm currently doing a re-wire, it's a great opportunity for me to put some metering in the house.
I'm single-phase, but I plan to monitor multiple sections of the house, which are each wired for 100A independently.

I'm currently eyeing up either the Shelly Pro 3EM – 120A or the 50A.
As it will fit nicely in the consumer unit, and supports Ethernet.

I previously looked at the Aeotec clamp devices, but they seem to be difficult to find with multiple 100A connectors.

Emporia Vue was also a consideration, but I'm always a little hesitant to buy products that require custom firmware to even work properly, when others are available. And I'd also like to avoid using 2.4Ghz wifi for connectivity.

I'd love to hear any experiences people have had with similar devices, good or bad. And how the integration with HA went.

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[–] db_geek@norden.social 4 points 9 hours ago (1 children)

@GreatAlbatross Unfortunately I can't say anything about the given Shelly clamp meter.
But I'm using several of Shelly Plus Plug devices in german version.
https://shellystore.co.uk/product/shelly-plus-plug-uk/

I'm a big fan of Shelly, because it can be configured and used completely without sending data to the cloud.
The integration in Home Assistant is very good and my data is only local at my self hosted Home Assistant instance.

A power diagram with maximal 800W on left axis. The time axis goes from 12:00 to 13:45. Several coloured graphs with spikes are shown. In the middle a specific point from 23.05.2025 at 12:41 is choosen and shows power consumption for four devices at this point from 0 W to 109,5 W.

[–] GreatAlbatross@feddit.uk 1 points 8 hours ago

Appreciate the response.
It's good to get some feedback on the integration.
I also currently use some (cheap) zigbee plug monitors, which I might replace with these down the line, thanks!