[Helmut10001]

In Germany we have an infrared one-way connection (SML protocol). I hooked a Raspberry Pi Zero WH (consumes only 0.7 Watt) with Ethernet Hat and USB-Infrared-Reader-Cable to the Smart Meter. The PI reads and transmits all readings over MQTT to my InfluxDB 2.0, which is running virtualized on Proxmox. At the same time, I also read my solar inverter through Modbus TCP (via OSS called "Solaranzeige"), to the same Influx DB. Both is visualized in Grafana. It is a nice stack that did not produce any problems in 7+ years.

All of this helped me to better understand my electricity consumption.

[throwaway2037]

This is a great post! Did you blog about it? I am sure HN would love a post like that. I would generate lots of interesting convos around similar setups in different countries.

[Helmut10001]

Ah, you mention a pain point. It's on my list for years now.. I've just added 60 kWp Solar plant [1] to my existing 30 kWp; once this is through, my monitoring stack will need updating and I will blog about it here [2].

[1]: https://himself.alexanderdunkel.com/@alex/112443427011946461

[2]: https://du.nkel.dev/