By Dr. Zhang Guanlun, TongWei Solar (Chengdu) Co. Ltd., P. R. China; Lan Wang; Junmin Wu; Qing Chang; Tao Yan; Yaohui Xie; Lei Yang; Bushuang Hong; Yuanqiu Zhang; Peng Zhang; Bingwei Yin
The deployment of renewable energy, especially solar, is becoming ever more popular. It is estimated that with every 1% increase in PV cell efficiency, electricity costs would decrease by 7%; therefore, improving solar cell efficiency is very important for reducing the average electricity-generating cost of solar and driving it towards grid parity.