9kW Solar panels with 2xAC300s (Split Phase)

Hello i have 2xAC300s and 8xB300s and awaiting the Smart Home panel for Split Phase usage.
I live in a not so hot and sunny area. I was hoping i can use a Solar Panel system that provides a theoretical ~9kw output. can i use such system on my Bluetti setup?
Is there anything i should make sure i have in place to be able to actually use it.

The reason i plan to go for a larger solar system in my area is that with the low sun count that may just provide 5kw but that is still enough to cover or get close to the maximum charge rate for the inverters. Not sure if i am going at this wrong. I just wanted to make sure i maximize solar energy in a not so sunny area. Thank you for your thoughts in advance.