International Partnership to Power South Korea’s Sovereign Satellite Constellation
A landmark multi-million-euro agreement between South Korean startup Flexell Space and European small satellite manufacturer NanoAvionics is set to provide critical solar array technology for a new generation of sovereign spacecraft for Seoul. The partnership will directly support South Korea’s K-LEO constellation, a key national security asset designed to bolster the nation’s capabilities in Low-Earth Orbit as its aerospace industry continues its upward trajectory.
Defining Roles for a Critical Mission
Under the terms of the contract, NanoAvionics, a subsidiary of Kongsberg Defence & Aerospace, will leverage its extensive expertise to design and manufacture the mission’s deployable solar arrays. Flexell Space, which originated from Korean aerospace giant Hanwha Systems, will manage the final technical validation, quality assurance, and integration of these vital power systems into the satellites. The first shipment of solar cells for this program is scheduled for the latter half of 2027, marking a key milestone in the development of constellations like the nation’s “425 Project SAR Sat” initiative.
Advancing Solar Technology for Space
Beyond the immediate needs of the K-LEO program, this collaboration is a forward-looking venture into next-generation space-based solar power. The two firms are exploring the integration of Flexell’s innovative copper indium gallium selenide (CIGS) and perovskite solar cells into NanoAvionics’ standard satellite platforms. These advanced materials aim to provide efficiency comparable to traditional gallium arsenide cells but with the added benefits of reduced cost and enhanced design flexibility, making high-performance solar solutions more accessible for future missions.
Executive Insight on the Strategic Alliance
Leaders from both organizations highlighted the significance of the partnership. Taehun (Tim) Ahn, CEO of Flexell Space, remarked that the alliance enhances quality verification and will “accelerate the introduction of next-generation solar cell technology to the global market.” Echoing this sentiment, Atle Woello, CEO of Kongsberg NanoAvionics, stated that the deal showcases the company’s “strong heritage in producing high-reliability satellite subsystems” and reflects growing interest from Korean national security missions in their advanced solutions.
Bolstering a National Space Ambition
This partnership is a vital component in South Korea’s ambitious space program, which aims to establish independent defense and secure communications infrastructure, building on recent successes like the Korea Pathfinder Lunar Orbiter. The reliable power source provided by these advanced solar arrays is crucial for the operational success and longevity of the K-LEO constellation. The deal solidifies a key part of the supply chain for Hanwha Systems, which continues to engage with premier global partners to realize the nation’s goals in space.
Sources Impressive Korean satellite solar arrays power 2024 mission
- South Korean space program – Wikipedia
- South Korea goes for space-based solar power
- KORSAT 1, …, 4 (425 Project SAR Sat 1, …, 4) – Gunter’s Space Page
- Korea Pathfinder Lunar Orbiter (KPLO) Operation: From Design to …
- Lift-Off: Korea’s Aerospace Industry Takes Flight
- Terran Orbital Establishes Strategic Partnership With Hanwha Systems

