KIER, Flexell Partner on Next-Gen Space Solar Cells

Aug 29, 2025 11:34 AM ET
  • KIER and Flexell Space join forces to revolutionize space solar cells, aiming for lightweight, flexible solutions to power small satellites and boost Korea's space competitiveness.
KIER, Flexell Partner on Next-Gen Space Solar Cells

The Korea Institute of Energy Research (KIER) and Flexell Space have signed a technology transfer agreement to develop ultra-light flexible CIGS solar cells for space applications. This collaboration aims to create next-generation dual-junction solar cells optimized for small satellites, with a project funding of 5.5 billion won (approximately US$4 million). The CIGS solar cells are designed to withstand extreme space environments and are suitable for integration into satellites due to their lightweight and flexible nature.

The solar cells will be tested in space during the fourth launch of Nuriho in November, attached to the CubeSat "INHARoSAT" from Inha University. This initiative is expected to enhance Korea's space security and competitiveness in the global space solar cell market. KIER President Lee Chang-geun and Flexell Space CEO Noh Shin-young emphasized the importance of this collaboration in pioneering the next-generation space solar cell market and improving performance and productivity for future mass production.

How will KIER and Flexell Space's collaboration impact the space solar cell market?

  • The collaboration between KIER and Flexell Space is expected to accelerate the development of advanced solar technologies specifically tailored for space applications, potentially setting new industry standards.
  • By focusing on ultra-light flexible CIGS solar cells, the partnership aims to address the growing demand for efficient and adaptable power solutions for small satellites, which are increasingly used in various space missions.
  • The project could lead to significant advancements in the durability and efficiency of solar cells, making them more suitable for the harsh conditions of space, thereby increasing their reliability and lifespan.
  • The successful testing and deployment of these solar cells in space could position Korea as a leader in the space solar cell market, enhancing its competitiveness on a global scale.
  • The collaboration may stimulate further research and development in the field, encouraging other companies and institutions to invest in similar technologies, thus driving innovation and growth in the space solar cell industry.
  • The initiative could also lead to cost reductions in the production of space solar cells, making them more accessible for a wider range of space missions and potentially lowering the overall cost of satellite launches.
  • By improving the performance and productivity of solar cells, the partnership could facilitate the mass production of these technologies, supporting the expansion of satellite networks and the broader space economy.
  • The project aligns with global trends towards sustainable and renewable energy solutions, reinforcing the importance of solar power in future space exploration and satellite operations.