Abstract
This paper will report on the work performed by BP Solar during the first two years of NREL PVMaT subcontract #ZDO-2-30628-03. The major objectives of this program are to continue the advancement of BP Solar's multicrystalline silicon manufacturing technology to: increase ingot size; improve ingot material quality; develop wire saws to slice 100 /spl mu/m thick silicon wafers; develop equipment for demounting and handling of ultra-thin wafers; develop cell processes that produce cells with efficiencies of at least 15.4% at an overall yield exceeding 95%; expand existing in-line manufacturing data reporting systems; establish a 50 MW factory model; and facilitate an increase in the silicon feedstock industry's production capacity for lower-cost solar grade feedstock.
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