P19...True-that, there could any number of conceivable QDSC apps, including upgrade retrofit overlays to existing inferior or obsolete PV modules. But 1st things 1st....as-in; make it viable & get-a-move-on before the next best-thing comes along or we become obsolete while waiting

I wish it was otherwise, but talk-alone doesn't pay the bills...if it did, we'd all be rich by now