A month ago, I installed a PV system on my roof based on a Solis inverter. To read the inverter’s parameters, I used the solis-sensor integration and, accepting all the limitations associated with cloud integration, it works great. Unfortunately, the experimental part controlling the inverter in my case was operating unstably.
Initially, I wanted to improve the existing integration, but since it was my first experience with the Home Assistant API and the integration code is complex, I gave up.
I decided to learn the Home Assistant API by independently writing a new integration. I focused on applying best practices (e.g., using coordinator) and solving issues at the interface with the Solis Cloud API. The result is the solis-cloud-control project, which I have been testing for a few days and it works very stably, allowing me to automate the inverter’s operation based on energy prices and energy production estimates for the next day.
I must admit that the Home Assistant API is a piece of excellent engineering work. And if my integration allows someone to automate their inverter, I will be very happy.