nanosolar 2

At the beginning of January I posted an article from this company.
It seems that Solar maybe finally becoming cost effective - ie as cheap as grid power!

Thin-film solar films are more than 100x thinner than silicon-wafer cells and thus have major materials cost advantages. Roll-printing production processes are simple, robust, and more than entire order-of-magnitude faster in throughput relative to vacuum-based thin-film deposition techniques.

Higher throughput drives vastly lower labor, capital, and process cost; it also enables unprecedented production volume scalability. The combination of thin films and roll-printing delivers low materials cost plus low process cost; the result is the world's most cost-efficient solar electricity cell:

Technology Wave	I. Silicon Wafer Cells	II. Vacuum-based Thin Film	III. Nanosolar Roll-Printed Thin Film
Process:	Silicon wafer processing	High vacuum (e.g. sputtering)	Roll-to-roll printing
Process Control:	Fragile wafers	Narrow process windows	Built-in bottom-up reproducibility
Process Yield:	Robust	Fragile	Robust
Materials Utilization:	30%	30-60%	Over 97%
Energy Payback:	3 years	1.7 years	<1 mnth
Throughput/CapEx	1	2-5	10-25