User 226214

House and Senate Disagree Over Renewable-Energy Credits

when the hel they are going to approve the renewable energy tax credit?
It is very critical for American with independent to forion oil.

Solar Grade: A Silicon Revolution

"then there is Metallurgical Grade [MG] used by the steel and metals industry as an alloying material. MG (98-99% pure) is made from relatively crude materials"

So far, I know only CSIQ producing Solar PV using UMG material which is much cheaper than the regular silicon.