Driving Innovation in Solar PV: Key Insights from the 2025 PV System Technology Trends Conference

Innovation Drives Solar PV Forward Despite Market Headwinds
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Day 1 of the TaiyangNews PV System Technology Trends Conference 2025 revealed that next-generation PV solutions—efficiency improvements, digital tools, and hybrid formats—are at the forefront of discussions at this year’s leading global solar events.

TaiyangNews Managing Director Michael Schmela opened the two-day PV System Technology Trends conference, emphasizing the significant participation at this year’s exhibitions despite the financial challenges currently facing the solar PV sector.

### Key Takeaways

– TNN-type architectures such as TOPCon, HJT, and BC are becoming prominent as PERC recedes from the mainstream, leading to higher module efficiencies.
– Manufacturers are enhancing modules through techniques like busbar reduction, tandem cells, and advanced metallization.
– Innovations in balance-of-system components, including compact inverters and flexible mounts, are supporting the evolving designs of solar modules.

Innovation remains a driving force in the solar PV industry. Despite market fluctuations or temporary downturns, technological advancements continue at a rapid pace. The latest breakthroughs were prominently featured at the sector’s two major trade fairs: The smarter E / Intersolar Europe in Munich, Germany, and SNEC in Shanghai.

TaiyangNews convened leading innovators to highlight their latest developments presented at these solar exhibitions during its virtual PV System Technology Trends 2025 conference, held on June 24 and 26, 2025.

### Insights from Industry Leaders

During his keynote address, TaiyangNews Head of Technology Shravan Chunduri shared insights from the TOP SOLAR MODULES Listing for the first half of 2025. He noted a clear trend of manufacturers transitioning to high-efficiency n-type cell architectures, including IBC, HJT, and TOPCon, as PERC becomes less common. AIKO leads with an industry-best 24.4% efficiency for its all-back contact (ABC) commercial module, while heterojunction (HJT) technology is exemplified by Huasun Energy’s 730 W module.

LONGi’s Product Marketing Expert, Charles Cheng, outlined the solar cell technology evolution, beginning with Al-BSF, advancing to PERC in 2017, and progressing to TOPCon in 2022. He discussed the benefits of back contact (BC) technology, which is expected to provide a 1.6% efficiency increase. LONGi achieved a certified efficiency of 27.81% for its HIBC cell technology and aims for 800 W+ tandem modules by 2030.

JinkoSolar’s Product Manager, Shayne Li, introduced Tiger Neo 3.0, which builds on the company’s TOPCon efficiency roadmap from 2022 to 2027. The new modules, leveraging the HOT 4.0 platform and a 20-busbar design, achieve efficiencies of up to 24.8% and outputs of 670 W. Innovations include Jinko’s Metallization Enhancement (ME) and half-cut passivation (HCP), contributing to overall efficiency gains.

Aran Huang from Tongwei Solar highlighted the company’s goal to exceed 26.5% cell efficiency with its upgraded TNC 2.0 technology. Innovations such as zero busbar technology and stencil printing are key to this improvement. The company is also exploring future architectures with back contact cells showing promising results in research and development.

GCL System Integration’s Technical Director for EU & LATAM, Vitor Rodrigues, discussed the low-carbon benefits of their FBR technology, which consumes significantly less power and has a lower carbon footprint compared to traditional methods. GCL is preparing to launch new TOPCon 2.0 modules and tandem modules targeting high efficiency.

DMEGC Solar, represented by Product Manager Kinyang Zou, shared its ambitious plans for module output, aiming for over 620 W by 2025 through advanced technologies. The company has seen a significant increase in module shipments and is committed to supporting various PV applications.

At Intersolar Europe 2025, Weidmüller introduced the PV Inline, a compact, plug-and-play surge protection device designed for small rooftop solar systems. This product, which meets European safety regulations, simplifies installation and enhances durability.

K2 Systems GmbH, represented by Product Manager Nadine Wade, unveiled upgrades to its PV mounting portfolio, adapting to the evolving needs of larger module formats and thinner frames. The company is transitioning from steel to aluminum for improved performance.

Lastly, Volker Biemann from MBJ Solutions GmbH presented the MBJ Quickcheck, a portable solution for onsite solar module inspection that enables quick diagnostics without disconnection.

As the solar PV industry continues to advance, these innovations showcase the sector’s resilience and commitment to improving efficiency and reducing costs.