Monitoring energy usage with smart plugs, Prometheus and Grafana

• tapmon

  1 4 - Go

  Remote Write Tapo P110 Energy Usage Metrics

I scrape power usage metrics from Tapo P110s and push them to Grafana Cloud using https://github.com/richardjennings/tapmon - although as other commenters have noted - using Wifi for smart plugs has its rough edges.

• homeassistant-powercalc

  2 874 9.7 Python

  Custom component to calculate estimated power consumption of lights and other appliances

Homeassistant + Power calc (https://github.com/bramstroker/homeassistant-powercalc) really does wonder here,

you can "simulate" power of fairly stable appliances.

Then you chart that in a nice Sankey chart or in standard charts and enjoy

• InfluxDB

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  Power Real-Time Data Analytics at Scale. Get real-time insights from all types of time series data with InfluxDB. Ingest, query, and analyze billions of data points in real-time with unbounded cardinality.

  

• reagle

  1 0 0.0 Go

  golang libraries and tools for working with the Rainforest Automation Eagle 200

I nerded out on this a few years ago and ended up buying a not well known device called a rainforest automation eagle (https://www.rainforestautomation.com/rfa-z114-eagle-200-2/). Its a pretty straight forward little linux device that reads your smart meter (after being enrolled via your utility). It exposes an xml api that I bridge to Prometheus (https://github.com/kklipsch/reagle).

I also bridge my utility (ComEd's) pricing feed to prometheus (https://github.com/kklipsch/comed_exporter). Between those 2 I get pretty good whole home utilization and pricing info graphed into Prometheus (and thus into Grafana).

• comed_exporter

  2 2 0.0 Go

  turn comed's hourly pricing data into prometheus metrics

I nerded out on this a few years ago and ended up buying a not well known device called a rainforest automation eagle (https://www.rainforestautomation.com/rfa-z114-eagle-200-2/). Its a pretty straight forward little linux device that reads your smart meter (after being enrolled via your utility). It exposes an xml api that I bridge to Prometheus (https://github.com/kklipsch/reagle).

I also bridge my utility (ComEd's) pricing feed to prometheus (https://github.com/kklipsch/comed_exporter). Between those 2 I get pretty good whole home utilization and pricing info graphed into Prometheus (and thus into Grafana).

• esphome

  11 458 6.2 C++

  Custom component for ESPHome to add support for the Emporia Vue 2 energy monitor (by emporia-vue-local)

  

• homewizard-energy

  1 - -

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

• homewizard-p1-prometheus

  1 4 5.2 Go

  A Prometheus exporter for the Homewizard P1 energy monitor

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

• SaaSHub

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