Perovskite Solar Cell Commercialization Year: GCL Optoelectronics GW-Scale Production Line Launches

On January 18, 2028, GCL Optoelectronics Technology held a launch ceremony in Kunshan, Jiangsu, announcing its GW-scale perovskite solar cell production line has officially entered mass production. The line has an annual capacity of 1.2 GW, making it the world's first GW-scale perovskite production line.

The announced module efficiency is 21.3%, below mainstream silicon cells' 23-24%, but production costs are approximately 35% lower. GCL Optoelectronics Chairman Zhu Gongshan stated: "Perovskite's real advantage isn't the efficiency ceiling — it's manufacturing cost and application flexibility. Our target is to exceed 24% efficiency by end of 2029."

The core challenge for perovskite solar cells has always been stability — perovskite materials degrade under light, humidity, and temperature changes. GCL Optoelectronics uses full encapsulation technology and additive engineering, extending outdoor service life from early under-one-year to a promised 25-year warranty.

China Photovoltaic Industry Association secretary-general Wang Shijiang commented that perovskite production is a critical step for China's photovoltaic industry to maintain global leadership. Over 20 companies worldwide are building perovskite production lines, but most remain at pilot scale.

Sekisui Chemical in Japan is also accelerating perovskite commercialization, with flexible thin-film perovskite cells that can be bent and attached to building exteriors, expected to mass-produce in the second half of 2028. South Korea's SK Materials focuses on perovskite precursor material supply.

However, perovskite environmental concerns persist. Early perovskite formulations contained lead; GCL states its mass-production formula has reduced lead content below EU RoHS standards, but completely lead-free perovskite still has significant efficiency gaps.