Add temperature sensor?

[jpduhen]

Is there (a way to add) a temperature sensor inside the Sessy to monitor in HA?

[PimDoos]

Currently not. I believe there is a temperature sensor inside the inverter, but it is not exposed over the API.
@MartijnCharged what do you think?

[dacootmeister]

There has to be at least one, as fan control and it's speed is based on load / heat dissipation.