SEG Solar has officially commissioned the first production line at its new photovoltaic (PV) cell manufacturing facility in Batang, Central Java, Indonesia. The $480 million investment underscores the company’s swift execution and commitment to global clean energy supply chain resilience.
Construction began in September 2024. Since then, the site has completed structural work. It has also installed cutting-edge manufacturing lines and produced its first batch of high-efficiency solar cells.
Launching Next-Gen N-Type Solar Cells
SEG Solar’s first product out of the plant is a self-developed n-type solar cell, boasting an average conversion efficiency of 26.4%. The company describes the product as offering “excellent output power and stability,” positioning it among the most efficient commercial cells currently available.
The advanced manufacturing lines utilise double-sided alternating screen-printing technology. They achieve an average cycle time of 0.75 seconds per cell—around 20% faster than traditional industry standards.
Phase One Targets 2 GW Capacity
With the first line operational, SEG Solar is moving into full-scale production for Phase One, which includes four lines totalling 2 GW in capacity. Looking ahead, the company plans to scale the facility to 5 GW of annual capacity. Over time, it aims to establish a fully vertically integrated solar manufacturing hub in Indonesia. This will span the production of silicon rods, wafers, solar cells, and modules.
Strengthening Indonesia’s Renewable Energy Ecosystem
The Batang-based factory is one of the first solar industry projects in the state-owned Batang Industrial Estate. The estate is located 390 kilometers east of Jakarta. SEG Solar believes the plant will not only accelerate its growth but also catalyse the formation of a PV manufacturing cluster in Indonesia. “The successful commissioning offers a replicable model for attracting more PV manufacturers and enhances the park’s industrial cluster effect,” the company stated.
Supporting Global and Local Markets
The Indonesian cell plant is a key pillar of SEG Solar’s global expansion strategy. It marks the company’s entry into upstream cell production after years of operating in the module space. The solar cells and modules manufactured here are intended to supply the company’s U.S. factory. It is also serving markets across Europe, Indonesia, and beyond. As reported by pv-magazine-india.com, SEG Solar emphasised that the Indonesian output will help deliver cleaner, traceable green products. SEG Solar expects this move to enhance supply chain transparency and improve ESG compliance for international customers.
