Can’t get forecast to work correctly

Trying to make forecast measure my future energy but seems like it takes wrong values
from Growatt SPF PV energy instead Growatt SPF PV power.
This is the result

My total watts for panels - 3180.
The real picture is maybe 2 times better. Growatt SPF PV power is in Watts and i can not find a way to change that sensor so my output looks more realistic.