This article explores the top 10 solar companies operating in South Korea in 2025, highlighting their technologies, market positions, and contributions to the renewable energy transition. Hanwha Q Cells. HD Hyundai Energy Solutions specializes in manufacturing high-quality solar panels, ensuring reliability and durability through rigorous testing. By 2023, South Korea has become one of the world's largest solar panel manufacturers. . As an industry leader in the n-type product era, JA Solar recently supplied 3MW of n-type modules for the Atae/Taejun/Yueun photovoltaic (PV) power plant project in Jindo-gun, Jeollanam-do, South Korea.