Incredibly New - SoCal Quote

I have a quote for a 6 kw system, 15 panels expected to produce 8400 kwhs and I was quoted 46,615.

Did I give the proper information to see if this is a good price or not? This is for a loan not a cash buy.

Southern California area

ETA I have an existing system, just bought my home 5 months ago, don’t know the details of what I currently have.

Just know it generated 226 kwhs last month but my usage was 1570 kwhs