Zhejiang Zhengtai Xinhui Solar Co., Ltd. has earned a significant national accolade. The company's in-house developed "Low-Carbon, Low-Cost, High-Performance PV Junction Box" has been selected as a "2025 Green Technology Innovation Case," an honor jointly conferred by the China Patent Protection Association and the Digital Transformation Promotion Center for the Green Energy Industry.
Critically, Zhengtai Xinhui was the sole enterprise in the PV junction box sector to receive this national award. This distinction serves as a powerful endorsement of its technological innovation capabilities and, more importantly, the high level of success in translating R&D achievements into practical applications.
The rigorous selection process, comprising open applications, multiple rounds of expert review, and a final defense, aimed to identify and promote advanced technologies with a significant impact on China's dual-carbon goals. Zhengtai Xinhui's ability to stand out among numerous contenders highlights its dominant position within this market segment.

Endorsed by a National Platform, Empowered by Core Technology: A Driving Force for Green Transformation
The "2025 Green Technology Innovation Case Collection" is a high-level initiative within China's green technology sector. Its primary goal is to implement the "Special Action Plan for Patent Conversion and Application," accelerating the industrialization of patented technologies and transforming green innovation into tangible, high-quality productive forces.
Zhengtai Xinhui's selected case aligns precisely with the national strategic direction of promoting an energy revolution and achieving high-quality development. This product is not merely a technological achievement but serves as a critical bridge connecting green patents with market applications.
This recognition stands as the highest accolade for Zhengtai Xinhui's long-term commitment to technological innovation and its deep dedication to the PV components sector. It also provides a replicable success model for the entire industry.
Decoding Zhengtai Xinhui's Technological Breakthrough: A Trio of Low-Carbon, Low-Cost, and High Performance
High-Current Junction Box:Designed for high-power modules requiring 25A-35A.
High-Voltage Junction Box:Suitable for modules used in 2000V system power plants.
Junction Box for Offshore Power Stations:Engineered for components in marine power plant applications.
Laser-Welding Junction Box:Compatible with modules using cost-reducing busbar laser welding technology.

High-current junction box

Marine-Grade Junction Box
Core Technological Breakthroughs: Innovative Solutions Addressing Industry Pain Points
Employing Single-Core Axial Diodes:Utilizes mature axial packaging technology to guarantee superior product reliability and consistency.
Modular Design for Electrical Connections:Effectively shortens the production cycle and adeptly meets the customized requirements of diverse clients.
Optimized Thermal Layout:Maximizes the use of heat-dissipating components and spatial arrangement to significantly increase the product's rated current and enhance its thermal runaway resistance.
Versatile Connector Applications:Leverages localized structural designs to create application-specific solutions for a variety of scenarios.
Advanced Material Application:Through innovative structural designs such as tail-winged seals, multi-segment grooves, and internal nylon inserts, CTI Class III engineering plastics have been successfully applied to 1500V photovoltaic systems.

From Industry Recognition to Market Confidence: Zhengtai Xinhui's New Chapter
As a participating unit in formulating several national industry standards for PV junction boxes and connectors, Zhengtai Xinhui consistently leverages technological innovation to lead industry development. Focusing on reducing costs and improving efficiency in power plants and new energy connection systems, the company provides customized green electricity connection solutions, including balcony PV connection packages.
The company's product portfolio primarily includes PV junction boxes, PV connectors, PV power optimizers, PV rapid shutdown devices, and smart cable harnesses. All are high-tech products independently developed and manufactured by the company, having obtained international certifications such as UL, CSA, TÜV, CGC, and CQC. Their core technologies have reached internationally advanced levels, forming a complete vertical industrial chain for PV junction boxes and connectors. This effectively addresses industry challenges like burnout and difficult maintenance.
Driven by global carbon neutrality goals, the PV industry is experiencing explosive growth, becoming a central force in the green energy shift. With the rapid iteration of new-generation high-efficiency cell technologies like TOPCon, HJT, and BC, PV systems are placing unprecedented demands on the performance of key components—junction boxes and connectors. These components must now not only meet requirements for higher photoelectric conversion efficiency and break through the energy loss bottlenecks of traditional materials and processes but also ensure stable operation for over 25 years in extreme environments (e.g., marine, desert).
In this national green technology innovation selection, Zhengtai Xinhui disclosed four invention patents, obtained authorization for four invention patents, and secured seventeen utility model patents. This recognition as a national-level green technology innovation case signifies authoritative acknowledgment of Zhengtai Xinhui's innovative strength in this specialized PV segment. As the "Dual Carbon" goals advance, the PV industry is undergoing a new wave of technological transformation. Through its continuous innovation in the junction box field, Zhengtai Xinhui not only provides efficient and reliable solutions for the industry but also demonstrates the core competitiveness of "Intelligent Manufacturing in China" within the green energy sector.
We firmly believe that through continuous technological innovation and quality improvement, Zhengtai Xinhui is poised to contribute more Chinese expertise to the global green energy cause, accelerating the achievement of the "Dual Carbon" goals. Let us look forward together to Zhengtai Xinhui writing an even more remarkable chapter in the field of green energy!