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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 20 hours ago by [email protected] to c/[email protected]

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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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[–] [email protected] 2 points 16 hours ago (1 children)

Second question actually; How did you find the installation?
I'll probably get an electrician to fit, but if there are any gotchas it'd be good to know before I instruct.

[–] [email protected] 1 points 14 hours ago

My dad is an electrician so he did it for me, from what he told me it was pretty straightforward. The easiest thing to mess up is the orientation of the toroids, which is easy to notice because the values will be negative. The 120A toroids are also kinda bulky, if your panel is on the small side it might be a bit difficult getting them in there.