We use between 650 and 700 kWh per month on average. The 8,000 kWh/yr should be about right for our current usage. We expect to use a little more A/C if we have solar, but are ok if we net out a little off, as long as we stay within tier 1 pricing.
Our pricing is based on about 17 285w panels or 15 320w panels.
Do you think you need an extra 200 kWh per month, every month, compared to your current usage? It seems like the proposed system may be larger than you need to me.
I'd get a couple of quotes if you have not already. I'm a little north from you, but last time I was looking, I got a quote from a company that primarily operates in San Diego,
Semper Solaris. I think they were on the high side, but in the ballpark of the range of quotes I got.