Monitoring energy usage with smart plugs, Prometheus and Grafana

Re:Monitoring energy usage with smart plugs, Prometheus and ... by danieldk on Monday May 06, 2024 @02:31AM (#40271773)

For people in The Netherlands: all Smart Meters that the net maintainers installed (are required to) support the P1 standard, which provides a standardized interface for customers to read out current current draw, cumulative power use, etc. Usually gas is hooked as well.

You can hook up a cheap dongle to expose the stats in an app. For instance, we use:

https://www.homewizard.com/nl/shop/wi-fi-p1-meter/

This meter also exposes an API on the local network. I have written a small driver for the SmartThings Hub, so that you can get the stats/graphs in the SmartThings app as well (we use a SmartThings hub for Zigbee/Z-Wave devices):

https://github.com/danieldk/homewizard-energy

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by Maakuth on Monday May 06, 2024 @03:33AM (#40272146)

This applies to Finland and Sweden too, perhaps others to follow.

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by jononor on Monday May 06, 2024 @03:40AM (#40272187)

Same principle in Norway, though it uses HAN instead of P1.

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by Maakuth on Monday May 06, 2024 @06:20AM (#40273016)

They call it HAN here in Finland too, but it's the same interface as the Netherlands one.

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by benhurmarcel on Monday May 06, 2024 @04:53AM (#40272594)

Same in France, the official meters have an interface on which you can plug a Raspberry Pi for example to read the data live.

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by swiftcoder on Monday May 06, 2024 @06:37AM (#40273097)

Do you know of an equivalent for the optical ports that speak DLMS/COSEM? The P1 standard doesn't seem to have caught on here in Spain just yet.

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by yard2010 on Monday May 06, 2024 @06:47AM (#40273158)

It seems that nl ppl always live 20 years into the future.

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by balfirevic on Monday May 06, 2024 @07:36AM (#40273438)

> all Smart Meters that the net maintainers installed (are required to) support the P1 standard

Does that support monitoring each power circuit separately?

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by quickthrowman on Monday May 06, 2024 @01:54PM (#40277421)

Not likely, you’d need a CT around the phase conductor(s) of every circuit. The meter likely only has CTs around the 2 (3) phase conductors on the incoming service drop.

It is entirely possible to meter each individual circuit, either with CTs and a meter or (gross simplification) special breakers that have metering capability built-in.

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by chrisdoc on Monday May 06, 2024 @10:24AM (#40275056)

Indeed it is great to use what is already provider by the utilities company, for the same reason I wrote a prometheus exporter that exposes the homewizard values https://github.com/chrisdoc/homewizard-p1-prometheus

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by smooc on Monday May 06, 2024 @10:45AM (#40275291)

Or to integrate with home assistant and cheaper

https://www.zuidwijk.com/product/slimmelezer-plus/

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Re:Monitoring energy usage with smart plugs, Prometheus and ... by nachteilig on Thursday May 09, 2024 @01:23PM (#40310502)

I guess I will be able to get this cheap when we finally have smart meters in Germany in like 20 years

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