Cells made with monocrystalline wafers are more efficient at converting sunlight into electricity, but they also are more expensive because of the difficulties and cost of making the wafers.
This high efficiency PV technology allows Suntech to achieve conversion efficiency rates in the range of 18% to 19% on PV cells manufactured with monocrystalline silicon wafers and 16.5% to 17.5% on PV cells manufactured with multicrystalline silicon wafers.