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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 18 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] 3 points 15 hours ago* (last edited 13 hours ago) (1 children)

I'm using off-the shelf CT-clamps with an ESP. Obviously it's a fair amount more work, but it's cheaper than a commercial solution, fully offline and no subscriptions, you know exactly what you are getting, and you can build a solution that is just the right size for your application, and infinitely modifiable if your needs change.

[–] [email protected] 2 points 14 hours ago* (last edited 14 hours ago) (1 children)

I think one day, I might go with something like that.
But admitting my own time limitations: It would probably sit in a drawer until I got around to it, joining the RGBW strip and similar ESP I bought a few years ago!

[–] [email protected] 1 points 10 hours ago

I bought one last year and and that's exactly what happened. It's in a box. I'd love to install it, but have to build a little external box because it did t quite fit.