You can use it as a custom component: GitHub - Emilv2/huawei_solar: Home Assistant custom component for Huawei inverters.
Currently there seem to be some issues with it and the latest HA version, I will be working on it again soon.
If you still have issues interpreting the time, you can take a look at my python code: Emil Vanherp / HuaweiSolar · GitLab
Concerning the extra optimizer data, I also tried to access it but failed. Please tell me if you manage to get it!