Configuration for Huawei Inverter

[karliwalti]

I will post first discussion entry as token of appreciation. Thank you very much for making this integration. I installed it today and it works out of the box.
I use it in combination with the Huawei SUN inverter and the huawei_solar integration https://github.com/wlcrs/huawei_solar/. there the virtual grid sensor is inverted, so I changed the configuration to:

pgrid: "{{states('sensor.power_meter_active_power') | float * -1}}"

I havent tested the optional parameters for inverter input and battery. Without, it already works fine. Some more testing needed to see how battery charging will behave in low and high PV production situations.

[marq24]

thanks - I have just added this info to the readme.md...