Assertion: si solar cell | /r/CapableOf | make solar cells
Facets:
value: from cheaper upgraded metallurgical silicon
type: OTHER
Source sentences:
text: Since a major part of the final cost of a traditional bulk silicon module is related to the high cost of solar grade polysilicon feedstock (about US$0.4/Watt peak) there exists substantial drive to make Si solar cells thinner (material savings) or to make solar cells from cheaper upgraded metallurgical silicon (so called "dirty Si").