Even now it's possible to put in large systems and have the rest of the system cost more then the panels. 1000 watts for $1500 is possible with the right sale. an inverter to handle 1000 watts plus the wiring, batteries or grid tie permit/installation is going to cost you more then that by a fair amount.
Not that I'm saying I'd turn down 1000 watts for $500. That's the price that the big box store currently charges for 80 watts.
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