I would provide this information with HomeAssistant to ESPHome, but this would not change much. I don't really have much ESPHome background yet, but I have a software developer background. Hi, this is the ESPEasy forum, not ESPHome, as you seem to assume?... Or did I misunderstand your message? I j...

How far are you? I'm interested in exactly the same: I have a HeatPump where the S0 signal from a electric meter could be connected where this electric meter would measure the energy provided back to the grid (i.e. the additional solar energy produced as currently needed). As I don't have such an el...