LONGi Press

Intersolar 2025: Industry “White Paper” highlights Back Contact as the next mainstream PV technology

At Intersolar 2025 in Munich, LONGi, Aiko Solar, TÜV Rheinland, China Electricity Council, and China General Certification Center officially presented an industry white paper identifying Back Contact (BC) technology as the leading candidate to drive the next era of photovoltaic innovation. As the world's first authoritative report on BC technology for the photovoltaic industry, the White Paper systematically elaborates on BC technology's industrialization path, core advantages, and sustainable development potential. With mass production cell efficiencies now surpassing 27% and further expected growth, the paper concludes that BC is emerging as the core pathway toward higher solar performance and sustainability.

LONGi and SM Advance Energy Sign MoU for Groundbreaking Solar Technological Park in the Canary Islands

LONGi has signed an MoU with SM Advance Energy to develop a 22MW solar technological park in Gran Canaria, part of the Canary Islands. The Parque Tecnológico de Energía Solar Gran Canaria (ESGC) will showcase advanced photovoltaic (PV) technologies—including LONGi’s Hi-MO S10, X10, and Hi-MO 7 modules—alongside agrivoltaic systems integrating solar with sustainable farming. Spanning multiple zones, the park will serve as a hub for clean energy innovation, R&D, and eco-tourism. Construction begins in 2025 with grid connection by 2027. The initiative aims to boost local industry, education, and environmental stewardship, aligning with EU climate goals and Spain’s energy transition.

LONGi Solar Wins Smarter E AWARD 2025 in Photovoltaics Category for Hi-MO X10 Back Contact Module

LONGi Solar is proud to announce that its Hi-MO X10 back contact module is among the winners of the annual Smarter E AWARD 2025 in the Photovoltaics category. The award was presented last night in Munich, on the eve of The smarter E Europe exhibition, ahead of Intersolar 2025.

LONGi launches 25% efficient heterojunction back contact (HBC) module and new consumer solar brand “EcoLife”

LONGi, a global leader in solar technology, introduced a premium back contact module based on heterojunction (HBC) at Intersolar, Munich. This is the first time that heterojunction back contact technology has been successfully implemented in a commercialized module. The Hi-MO S10 (EcoLife Pro) delivers a world-leading cell efficiency of 27.3% and a module efficiency of up to 25%, setting a new benchmark for performance in the photovoltaic industry. The 54-cell bifacial premium module is designed for use in the residential sector and has a maximum power output of up to 510W leading to a power per square meter ratio of 250W/m². LONGi offers a 30-year warranty on both power and materials.

LONGi Sets Dual World Records in Solar Cell Efficiency for HIBC and Tandem Technologies

LONGi, a global leader in solar technology, has announced two new world records in photovoltaic conversion efficiency, showcasing major advancements in both back contact and tandem solar cell designs.

LONGi maintains AAA ranking in Q1 2025 PV ModuleTech Bankability Ratings

LONGi has announced the retention of its AAA rating in PV-Tech's Q1 2025 PV ModuleTech bankability ratings, marking the company's 21st consecutive quarter at this top tier and underscoring its long-term commitment to quality, innovation, financial stability and leadership in the photovoltaic industry.

Intersolar 2025: LONGi is a finalist for the Smarter E AWARD 2025 in the category “Photovoltaics” with its Hi-MO X10 back contact module

The Smarter E trade fair has finally announced the shortlist of finalists for this year's Energy Transition Awards, which will be presented in five categories: Photovoltaics, Energy Storage, E-mobility, Intelligent Integrated Energy and Special Projects.

At Smart Energy Forum in Nitra: LONGi introduces their new generation back contact module Hi-MO X10 with 670W Power and 24.8% efficiency to the Czech Republic and Slovakia

LONGi, a global solar technology leader, launches its next-generation high-end back contact solar module for the markets in Czech Republic and Slovakia at Smart Energy Forum, the renowned energy fair in Nitra, Slovakia. The new Hi-MO X10 is based on LONGi’s new HPBC 2.0 technology and is equipped with the company’s new proprietary n-type TaiRay wafer and Bipolar Hybrid Passivation Technology which brings significant improvements in efficiency, mechanical characteristics and reliability.

LONGi receives “EUPD Research Top Innovation Award 2025” for latest Back Contact Technology HPBC 2.0

LONGi Solar Technology Co., Ltd. has been awarded the EUPD Research Top Innovation Award 2025 (TIA) in the category “Modules” for its high-efficiency Hybrid Passivated Back Contact (HPBC) 2.0 technology. The respective certificate was presented during KEY Energy, the Energy Transition Exhibition in Rimini, Italy. The recognition underlines LONGi's commitment to the advancement of solar technology, in particular back contact technology, and its continuous dedication to innovation and excellence in the renewable energy sector. In 2023, LONGi emphasized that back contact cells would be the focus of its technology development due to their superior conversion efficiency and future viability. Currently, two of LONGi's module types are equipped with HPBC 2.0: the Hi-MO 9, which is suitable for utility-scale projects, and the Hi-MO X10, which addresses the different needs of the residential and C&I markets. LONGi is the first company to win the Top Innovation Award for Europe in the "Modules" category since the award's inception in 2024.

LONGi upgrades AI-powered Lighthouse Factory to HPBC 2.0 production to include latest Hi-MO X10 back contact module for DG Market

LONGi has upgraded its Lighthouse Factory in Jiaxing, China to produce LONGi’s back contact modules featuring the new second generation of HPBC 2.0 - Hybrid Passivated Back Contact technology. The modules include the new Hi-MO X10 which was first launched in Europe in December 2024. The X10 has been engineered to significantly improve reliability, cost-efficiency, and long-term performance. It features a multi-layer structure to increase light absorption, reduce the reflection of short-wave light, reduce UV-induced degradation and shading power loss by over 70% compared to TOPCon, and lower hotspot temperatures by 28%. A zero-bus (0BB) bar structure further enhances performance while LONGi’s new TaiRay wafers show a 16% increase in break resistance for greater reliability. The X10 delivers up to 670W of power with 24.8% efficiency, generating up to 30W more power than TOPCon under the same conditions.

LONGi Maintains AAA Rating in Q4 2024 PV ModuleTech Report

LONGi has retained its AAA rating in PV-Tech’s Q4 2024 PV ModuleTech bankability ratings. This marks the company’s 20th consecutive quarter with the highest rating, reflecting its consistent performance in several key areas.

LONGi Chairman Baoshen Zhong: “Back contact technology represents a significant advancement in solar module efficiency and aesthetics”

In a recent expert discussion, Baoshen Zhong, Chairman of LONGi, shared comprehensive insights into the company’s strategic direction and innovations, with a particular focus on back contact (BC) technology.

"The Pinnacle of Crystalline Silicon" - LONGi Launches Hi-MO X10 High-Performance Back Contact Module for Distributed Generation and C&I Markets in the UK

The team has launched LONGi's new Hi-MO X10 back contact module with our proprietary HPBC 2.0 technology in UK.

LONGi sustains AAA ranking in Q3 2024 PV ModuleTech Bankability Ratings for the 19th consecutive quarter

We have retained our AAA rating in PV-Tech's Q3 2024 PV ModuleTech bankability ratings and have now been at the top of the rankings for 19 consecutive quarters.

25.4% Module Efficiency: LONGi Sets New World Record

LONGi has set a new world record for crystalline silicon solar module efficiency with its independently developed hybrid passivated back contact (HPBC) 2.0 module, achieving a conversion efficiency of 25.4%, according to a certification report from Germany’s Fraunhofer Institute for Solar Energy Systems (Fraunhofer ISE).

LONGi forms alliance with Global Solar Council on policy, advocacy and standard setting to ensure long-term success of global solar industry

We have entered into a strategic partnership with the renowned Global Solar Council (GSC), an international NGO based in Washington D.C. that represents and serves as the unified voice of the global solar industry.

LONGi honored with three awards from TÜV Rheinland winning module category “All Quality Matters” (AQM) award for 8th consecutive year

We received the AQM Award for both PV Module Energy Yield Simulation and PV Module Reliability, marking the company's eighth consecutive year of winning the AQM Award in the PV Modules category since receiving its first award in 2017.

LONGi awarded the ISO 20400 Sustainable Procurement by SGS

We have officially received the ISO 20400 certificate for Sustainable Procurement by SGS. This is a significant milestone for LONGi and our ongoing efforts to integrate sustainability into every aspect of the procurement process, including increasing transparency in the supply chain to protect human rights and the environment.

LONGi Solar reaffirms commitment to human rights and publishes inaugural Human Rights Policy

LONGi's introduced Human Rights Policy is based on a set of fundamental principles, including a strict prohibition of forced labor, child labor, and discrimination.

LONGi’s AI-driven Lighthouse Factory achieves industry-changing breakthroughs in production quality, speed and energy consumption

The Jiaxing Lighthouse Factory sets a benchmark in the digitalization of solar manufacturing. Our recent enhancements include a 43% increase in product quality, an 84% reduction in production and delivery cycles, and a 20% decrease in energy consumption per unit.

Now on commercial M6 size wafer: LONGi announces 30.1% efficiency world record for silicon-perovskite tandem solar cells

LONGi officially announced a new world record cell efficiency of 30.1% in a silicon-perovskite tandem cell on a M6 commercial wafer. The record was certified by the authoritative certification bodies of the Fraunhofer Institute for Solar Energy (Fraunhofer ISE) in Germany.

LONGi launches “Hi-MO X6 Max” back contact series with rectangular M11 TaiRay Inside wafer in Europe setting new industry benchmark

During Intersolar 2024, we launched the Hi-MO X6 Max series for the DG market

LONGi sets new world record with 27.30% for heterojunction back contact cells and renames next generation silicon tera wafer to TaiRay Wafer

Longi has achieved a power conversion efficiency of 27.30% for an HBC solar cell. Germany's Institute for Solar Energy Research (ISFH) has confirmed the result.

LONGi Awarded Silver Sustainability Rating by EcoVadis for its ESG Performance

We have been awarded the Gold Medal (Group Level) in the 2025 EcoVadis CSR Assessment, ranking in the top 5% of 150,000 companies worldwide. The rating analyst praised LONGi for its high-level environmental management system, fair business practices, and sustainable procurement management.

LONGi introduces Tairay silicon wafers for TOPCon, heterojunction and back-contact cells

The new M11 TaiRay wafers have a 16 percent higher bending strength, a more evenly distributed resistance, and less impurities for higher performance.