Tax Season - Installed PV system, have a question about Hawaii RETITC

Had a PV system installed last year and we are doing our Hawaii taxes. The sales people made it sound like you could get the $5K tax credit per 5Kw solar panel system. We put up 10KW of panels figured we'd get 10K back from the state.

I'm looking at it and it looks like 5K is the max period. Anyone have experience claiming this credit multiple times with a large system?