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 2 weeks 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 โ€“ 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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[โ€“] spitfire@lemmy.world 1 points 2 weeks ago

I've been using Zamel MEW-01 (https://supla.zamel.com/product/monitor-energii-elektrycznej-wi-fi-3fn-mew-01/) for about 3 years now. I think that would also match your needs? Works really great, connects to MQTT and has 3 versions (they differ by antenna type).