Although the efficiency of the multicrystal si solar celli s lower than that of monocrystal si , the multicrystal si material is cheaper than monocrystal si , so the multicrystal si module has more potential reducing the cost 尽管多晶硅电池效率比单晶硅太阳电池低约2 ,由于其材料制作成本低于单晶硅材料,因此多晶硅组件比单晶硅组件具有更大的降低成本的潜力。