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Solar energy in Home Assistant
(lemmy.world)
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
For reference: smart meters like Kamstrup are in use all over the EU. Example of a p1 dongle is the "smart meter gateway" which can be read from home assistant via the DSMR integration or directly from mqtt.
This would give you the counters for exactly how much you have pulled from and pushed into the grid.
Can confirm this will integrate nicely into the energy dashboard.
And biggest tip: when you have configured everything, it will take up to 2 hours before any data is visible from the energy dashboard. This screwed me over quite a bit, needless to say :-)