I’m starting with photovoltaic on my roof.
Which hardware-components are recommendable with regard to reliable openhab-connectivity?
Are there already best-practice rules for optimisation of self-consumption?
Next to openHAB2 I have installed “Solarview@Fritzbox” on my Raspi3. Check it out here:
For sure you need to know if your inverter is supported. If yes you could read out the data you need with Exec-Binding and define rules to switch on electrical devices if there is enough power 
It works like a charm for me:
- Boiler
- Air dehumidifier (summer)
- Air humidifier (winter)
- IRobot (Accu)
Additional Hardware in my setup are:
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