LONGi Green Energy Technology, a global leader in solar innovation, has unveiled an enhanced version of its Hi-MO 9 module, now featuring advanced HPBC 2.0 technology, at an event held in Anhui, China. Building on the success of its initial launch last year, the new Hi-MO 9 module has received international acclaim for its exceptional energy generation capabilities.
The latest model boasts an impressive 24.8% conversion efficiency and a peak power output of 670W, surpassing the performance of standard TOPCon modules by 40W in mass production. This innovation further positions Hi-MO 9 as a transformative solution for maximizing the value of solar power plants worldwide.
- Full-Scenario Power Generation Breakthrough: Bifaciality Exceeds 80%
The upgraded Hi-MO 9 module, designed with LONGi’s proprietary HPBC 2.0 technology, redefines all-scenario power generation performance. By incorporating innovative 0BB (0 Busbar) technology and full-area passivation (half-cell architecture), LONGi has increased module power by 10W, achieving a peak of 670W, with an efficiency of up to 24.8%. The optimized rear-side grid design enabled by 0BB technology enhances bifaciality to over 80%, significantly improving overall energy yield.
Compared to TOPCon modules, Hi-MO 9 offers a 1.5% absolute efficiency gain, boosts installed capacity by approximately 6.4% within the same land area, and lowers the upfront investment costs for photovoltaic power plants. Beyond standard conditions, Hi-MO 9 exhibits remarkable resilience in challenging environments, including partial shading, high-temperature/high-humidity regions, and low-light scenarios. Over the past year, various field demonstration projects have showcased the Hi-MO 9 module’s “remarkable” energy generation capabilities in diverse environments.
In Hainan, China’s high-temperature and high-humidity conditions, LONGi’s Hi-MO 9 module provides a 1.89% per-watt energy yield advantage over conventional TOPCon modules. In the arid climate of Riyadh, Saudi Arabia, the gain reaches 1.62%. Data from additional BC power plants further validates the exceptional power generation capabilities of the HPBC 2.0-powered Hi-MO 9 module, highlighting its proven reliability across different global climates.
- World Record Broken: Photovoltaic Efficiency Reaches New Heights
During the event, LONGi announced a groundbreaking achievement in high-efficiency PV cell technology, setting an unprecedented world record:
– 27.81% conversion efficiency for its self-developed HIBC (Heterojunction Interdigitated Back Contact) silicon solar cells, certified through rigorous calibration tests by Germany’s ISFH (Institute for Solar Energy Research Hamelin).
This achievement not only reignites global market optimism towards cutting-edge solar solutions but also cements LONGi’s position as a pioneer in delivering transformative energy technologies.
- Unlocking Greater Commercial Value: Global Optimal BC Solar Power Plant Design Challenge Launched
To further enhance the market potential of high-efficiency BC technology, LONGi collaborated with TÜV Rheinland, a globally recognized third-party institution, to launch the “Global Optimal BC Solar Power Plant Design Challenge” during the event. This competition, open to consultancies, EPC firms, and renewable energy investors worldwide, invites innovative designs for ground-mounted power plant projects exceeding 50 MW across various application scenarios. Submissions will be accepted from April 11 to November 30, 2025. TÜV Rheinland will lead an expert panel to rigorously evaluate entries based on BC technology integration, PVsyst simulation results, and design innovation. The total prize purse amounts to approximately 280,000 USD.
Dennis She, Vice President of LONGi, emphasized, “BC technology represents the ultimate advancement in crystalline silicon solar cells. With a mature global ecosystem, high-efficiency BC modules are rapidly being deployed across diverse applications. The upgraded Hi-MO 9, powered by HPBC 2.0, will deliver unparalleled value to customers worldwide. We are committed to sharing BC innovations with global partners to build a sustainable future.”
LONGi’s global order reserves for BC modules have surpassed 40 GW. The expanding deployment of BC power plants worldwide is set to yield higher returns for clients and redefine the future of the photovoltaic industry.
Source: LONGi
