High-Efficiency Tandem Solar Technology Opens Path for Space Energy Systems

Trinasolar has announced a major technological breakthrough, setting a new world record for power output in large-area perovskite/crystalline silicon tandem solar modules. The company revealed that its 3.1 m² tandem module achieved an unprecedented 886 W, marking a significant milestone in the advancement of next-generation space photovoltaic (PV) technology.

The achievement, disclosed on January 22, 2026, represents the 38th world record created or broken by Trinasolar and underscores the growing role of perovskite-silicon tandem technologies in addressing future energy demands, particularly for space applications. Alongside the record module output, Trinasolar also reported notable efficiency gains in perovskite/P-type heterojunction (HJT) tandem cells, further strengthening its leadership in high-efficiency PV innovation.

As global computing infrastructure expands beyond Earth into Low Earth Orbit (LEO), energy supply constraints on terrestrial grids are becoming more pronounced. Space Solar is increasingly viewed as a critical solution, providing continuous and sustainable power for space computing, satellite constellations, and deep-space exploration. It is also central to the emerging “Space Generation – Wireless Transmission – Ground Reception” energy model.

While gallium arsenide (GaAs) solar cells currently dominate space applications due to their performance, high costs have limited scalability. With the rapid growth of LEO communications and space computing, crystalline silicon and perovskite-based technologies are expected to gain momentum, with P-type HJT and perovskite tandem cells emerging as leading contenders for next-generation Space PV.

Trinasolar’s engagement in space solar research spans more than a decade. The company was among the first to conduct irradiation testing of silicon solar cells under space-like conditions, building a strong foundation of experimental data and engineering expertise. This long-term R&D commitment has supported continuous innovation at the frontier of photovoltaic technology.

Guided by its “Full Matrix & Deep Accumulation” strategy, Trinasolar has established a comprehensive technology portfolio covering crystalline silicon, perovskite, and Group III-V compound cells such as GaAs. Recent achievements include 27.08% efficiency in large-area HJT cells, over 35% efficiency in small-area perovskite-silicon tandem cells, and 32.6% efficiency in 210 mm large-area tandem cells.

With 698 cumulative patent applications in perovskite and tandem technologies and exclusive licensing from Oxford PV in China, Trinasolar continues to strengthen its global leadership. The company’s full-chain capabilities—from cells to modules—enable customized clean energy solutions for advanced applications, including space data centers and LEO communication networks.

Chairman Gao Jifan emphasized that Trinasolar’s journey reflects a consistent mission to push energy boundaries through technology, stating that the company will continue advancing synergistic innovations to support future computing power and energy security in space.