Longi Launches First Solar Panel With 25% Efficiency, Heterojunction, And Back Contact

Written by Andriely Medeiros de Araújo

Published on 09/05/2025 at 21:36

A Longi lançou o Hi-MO S10, primeiro painel solar residencial com 25% de eficiência, combinando tecnologia HBC, alto desempenho, durabilidade e design adaptado para telhados. Imagem: Canva.

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Longi Launched the Hi-MO S10, First Residential Solar Panel with 25% Efficiency, Combining HBC Technology, High Performance, Durability, and Roof-Adapted Design.

Longi, one of the global leaders in photovoltaic technology, launched on Wednesday (7) its newest residential solar panel, establishing a historic milestone for the solar industry: the Hi-MO S10 (EcoLife Pro) model achieves 25% efficiency, the highest rate ever recorded among modules available for sale in the global market.

The announcement took place during Intersolar Europe 2025, one of the leading trade fairs in the sector, held in Munich, Germany.

Innovation for Residential Use: More Power and Refined Design

The new solar panel from Longi integrates the premium EcoLife Series, specially developed for residential consumers seeking to combine energy efficiency, durability, and aesthetics.

ARTICLE CONTINUES BELOW

Longi’s HBC Technology Uses a Combination of HTJ and Back Contact

The central innovation of the panel lies in the application of HBC technology (Heterojunction Back Contact), which combines heterojunction (HTJ) with a back contact structure.

This engineering allows for greater light capture and minimizes losses, resulting in superior performance compared to traditional models available in the market.

According to the manufacturer, this is the first mass-produced and commercially available solar panel with this technological combination, making it a reference in industrial innovation in the photovoltaic sector.

With an efficiency of 25%, the Hi-MO S10 exceeds the current limit of conventional solar panels sold, which hovers around 24.2%.

Until now, higher numbers were only achieved in laboratory environments, without viability for large-scale production.

Another highlight of Longi’s new solar panel is the ultra-low temperature coefficient of -0.24%/°C, meaning that performance loss caused by heat is significantly reduced—a crucial differential for regions with high temperatures.

Future of Solar Energy: Breaking Technological Barriers

The efficiency of a solar panel determines its capacity to convert sunlight into electrical energy per square meter.

The higher this rate, the greater the energy production in the same area, which is essential for residential applications, where installation space is often limited.

Achieving 25% efficiency on a commercial scale represents a significant advance, considering that the theoretical limit for silicon solar cells hovers around 30%.

To break this barrier, researchers have been exploring new materials, such as perovskite, although its commercial application is still under development.

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Longi Launches First Solar Panel With 25% Efficiency, Heterojunction, And Back Contact

Longi Launched the Hi-MO S10, First Residential Solar Panel with 25% Efficiency, Combining HBC Technology, High Performance, Durability, and Roof-Adapted Design.

Innovation for Residential Use: More Power and Refined Design

Longi’s HBC Technology Uses a Combination of HTJ and Back Contact

Future of Solar Energy: Breaking Technological Barriers

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Longi Launches First Solar Panel With 25% Efficiency, Heterojunction, And Back Contact

Longi Launched the Hi-MO S10, First Residential Solar Panel with 25% Efficiency, Combining HBC Technology, High Performance, Durability, and Roof-Adapted Design.

Innovation for Residential Use: More Power and Refined Design

Longi’s HBC Technology Uses a Combination of HTJ and Back Contact

Future of Solar Energy: Breaking Technological Barriers

At just 14 years old, a boy creates a system without energy, using steel pipes buried in the ground, that irrigates seedlings with moisture from the air, to combat the water scarcity threatening reforestation in northern China.

Where there was only sand and wind at 40 degrees, China built a megacity of 500,000 inhabitants with farms, wineries, and universities in the middle of the desert using melted glacier water from hundreds of kilometers away.

At over 8,800 meters above sea level, the summit of Mount Everest is made up of rocks that originated at the bottom of an ocean about 500 million years ago and were pushed to the highest point on Earth by the collision of tectonic plates.

The German economist Wolf-Peter Schill has no doubts: “Electric cars are already far superior to cars with internal combustion engines.”

Mato Grosso do Sul excels in the sugar-energy sector: the state reaches a milestone of 22 operating mills and accelerates the production of clean energy in MS with a focus on sustainability.

Lula’s government changes rule in important benefit and thousands of Brazilians will no longer receive it; see what has changed.

Alert in the fuel market: Analysts and a former director of ANP warn that oil prices may worsen in the coming months due to global instability.

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