MN Renovator,
My Sunpower 10 - 245w panels, turn key install is $4.52 watt. With only Fed rebate, $7,751.80 total. Sun Valley Solar will be adding 3k SMA.
This is add to 9.2kw with 40 - 230w Sunpower panels. My add is 50 percent drop in cost. Total system size will be 11.6kw
All I really care about is it's paid for, and I've saved $5,400 so far. Being on cutting edge does cost more. Don't have a plug-in car yet. The 2011 Prius is getting 55 to 60 mpg.