Shanghai, China - December 25, 2025 - In a breakthrough in the field of photovoltaic technology (PV), Trina Solar, a leading company in smart solar energy solutions, has achieved yet another amazing feat by establishing the world's records in terms of tandem solar cells efficiency and output power of solar modules. The two accompliashments reflect Trina Solar's continuing efforts to expand the limits of solar energy conversion.
The Breakthrough: Crossing the 32.5% and 865W Thresholds
This week, a remarkable achievement was announced by the Photovoltaic Science and Technology National Key Laboratory in China and Huairou Laboratory as they achieved the first verified conversion efficiency of a perovskite/crystalline silicon tandem solar cell bigger than 1m2 verified by the German Institute for Solar Energy Research (Fraunhofer ISE CalLab) of 32.6%.
In conjunction with this accomplishment, TÜV SÜD has also certified an industrial standard sized module of 3.1 m² to deliver a peak power of 865 Watts using these innovative cells. Achieving over 32.5% in efficiency and 865 Watts in output power marks a first for perovskite/silicon tandem tech. This suggests that this technology is quickly moving toward being sold.
The Significance: Breaking the "Single-Junction Ceiling"
This innovation holds crucial importance for the entire solar field. The mainstream independent junction crystalline silicon cells are nearing their theoretical efficiency ceiling, sometimes known as the "impenetrable ceiling." On the other hand, the tandem technology applies a perovskite cell upon a silicon cell thus utilizing a larger spectrum of sunlight and breaking this ceiling with a theoretical efficiency limit of over 43%.
Trina Solar's achievement demonstrates a successful translation of this high-potential theory into a tangible, large-area device. The company had previously made headlines by creating the world's first industrial-standard-sized module to break the 800W barrier. The rapid progression from 808W to 829W, then 841W, and now 865W within a year exemplifies what the industry has come to call the "Trina Speed" in technological innovation.
A Decade of Foresight and a Dual-Track Strategy
This record is not an isolated event but the fruit of a long-term, strategic vision. Trina Solar pioneered its perovskite tandem research as early as 2014, positioning itself at the forefront of next-generation PV technology.
The company's success is built on a dual-track technology strategy:
Leading the Present with TOPCon: While pioneering the future with tandems, Trina solidly leads the current mainstream market. Its proprietary i-TOPCon technology has been recognized as a global leader in mass-produced module efficiency, with its panels ranking among the world's top three for conversion efficiency.
Tandems Inventing a Future: The Company has created a large moat of intellectual property rights in the field of perovskite. They are the holder of 481 publicly available patents and have the most patents of any company in the world. The Company has also taken strategic steps to enhance its position as an industrial leader by acquiring an exclusive patent license in China from Oxford PV, the leader in tandem technology.
The Road Ahead: Reshaping the Global Energy Landscape
This recent accomplishment is not just another success for a company; it is also an important indication for the energy sector on a global level. Since solar energy is becoming the core of energy generation systems in the world, the battle shifted from the cost of equipment to LCOE and the overall value of the energy systems themselves. More efficient PV modules, such as, for example, the new tandem module produced by Trina, guarantee higher generation of energy taking into account roof or land size and thus reducing the costs of the whole energy generation system and the LCOE.
Trina Solar, having successfully navigated multiple industry cycles, is now leveraging its innovation in both mainstream TOPCon and revolutionary tandem technologies to transition from a premier module manufacturer to a comprehensive "leader in smart energy solutions". The new records in efficiency and power are powerful catalysts for this transformation, promising to deliver greater value to customers and propel the global energy transition into a new, high-efficiency era.
