this post was submitted on 23 May 2025
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Energy usage clamp meters (feddit.uk)
submitted 2 months 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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[–] Saik0Shinigami@lemmy.saik0.com 1 points 2 months ago

As I’m currently doing a re-wire

Depending on how far you're rewiring... You might want to look into a https://www.span.io/. I installed one when I installed solar (and whole house battery). It's been great for me. Integrates nicely into HA, and with HA now doing parent-child power montoring, I can see the whole break and break out specific loads that I want more information on with the zwave modules I already had.