DAH Solar’s Full-Screen Technology Demonstrates 11% Energy Gain for Solar PV Modules As frameless PV modules are gradually becoming a mainstream trend in the industry, PV magazine had an interview with DAH Solar’s R&D Director, Dr. Jiang Chengyin, about the company’s design for its 3.0 Full-Screen product version further improves energy yield while lowering costs and reducing the likelihood of fractures. What is the “Full-Screen” technology for solar modules? Dr. Jiang Chengyin: Regular solar modules have frames that protrude above the glass surface, causing dust to accumulate since rainwater can't flow off quickly. Through our patented design, we ensure the frame is flush with the surface, allowing rainwater to smoothly run off and carry away dust, achieving a self-cleaning effect. Based on outdoor performance tests, at an installation angle of around 5 degrees, which simulates the typical installation angle on most domestic color steel tile roofs, our Full-Screen modules can achieve an annual energy gain of approximately 11%. With the elimination of traditional aluminum frame wrapping, can the Full-Screen's flat edge design meet structural rigidity requirements? How does it withstand long-term outdoor sealing performance? Dr. Jiang Chengyin: Originally, double-glass modules had no frames. With encapsulation of double-sided strengthened glass fully meeting the module's strength requirements. Adding frame designs primarily protected glass edges from damage. Since the distance from the internal cell's conductive part to the module edge is generally over 15 mm, the waterproof sealing insulation width at the edge is also 15 mm, ensuring long-term outdoor sealing. DAH Solar's design eliminates the front frame but retains side and back frames, bonded with high-strength silicone rubber, maintaining glass edge protection. Silicone rubber offers proven durability and weather resistance. What improvements does DAH Solar's Full-Screen product at this SNEC exhibit offer compared to previous models? Dr. Jiang Chengyin: Our Full-Screen product has advanced to version 3.0, which is a significant improvement over versions 1.0 and 2.0. First, we have adopted the Full-Screen plus “Dense Busbar” (DBB), which is a design similar to 0BB. DBB technology has several advantages, notably significantly reducing silver consumption during cell production, lowering product costs. Additionally, in module production, we've abandoned high-temperature welding processes, using low-temperature film to bond ribbons to cell surfaces. This low-temperature encapsulation process enhances module power, reduces virtual welding and the likelihood of fractures, improves yield, and extends product life by avoiding flux residues that corrode grid lines. Overall, version 3.0 products show significant improvements in reliability and power generation compared to past versions. Furthermore, we now use industry-leading rectangular silicon wafers based on 182 mm as the substrate for TOPCon ce...
2023-12-06
DAH Solar Amazed the 2023 Solar Solutions Düsseldorf with Innovative Products
The 2023 Solar Solutions Düsseldorf was held on Nov.29th in Düsseldorf, Germany. Lasting for 2 days, the 2023 Solar Solutions Düsseldorf gave DAH Solar plenty of time to showcase its most groundbreaking products: The worldwide patented PV Module (Full-Screen Module), the world’s first integrated PV system (SolarUnit), the high-efficiency PV Module (N-TOPCon BiFacialModule).
SolarUnit, Leading the Way of Household Application of PV Modules
Balcony PV products are developing rapidly in Germany responding to encouragement for the use of clean energy and the subsidy policy of balcony PV products. Besides Germany, the development of balcony PV products in other European countries is surely to grow.
When it comes to the balcony PV installation, SolarUnit, the world’s first integrated PV system ingeniously adopts the integration of PV Module and the inverter. The integration allows SolarUnit to fit various scenarios, making it a perfect choice for users who are seeking products with performance and flexibility.The PV Modules and the micro-inverter are matched by the factory, making the installation process simple and easy, saving users the effort and the cost.
The highest conversion rate of micro-inverter can reach 97.55%, the whole system has higher power generation and a lower error rate.
The whole system can be monitored through the APP, only needs one step to shut down the system, therefore safety can be best guaranteed.
The integrated PV system SolarUnit is an innovation solution of DAH Solar to apply PV Modules on roofs and balconies, when fitting the PV Modules into the buildings, it also fits the use of clean energy into the daily lifestyle.
What’s more, the SolarUnit is equipped with DAH Solar’s patented Full-Screen Module. The Full-Screen Module is capable of decreasing power generation loss caused by dust and lowering operation cost.
SolarUnit "roof + balcony" integrated photovoltaic system customer case in Austria
During the preparation for the Solar Solutions Düsseldorf, DAH Solar held a series of SolarUnit roadshows in Vienna, Berlin, and other cities, and they all achieved great success.
The“MAKE IT SIMPLE” roadshow aims to have deep communication with customers, provide professional instructions, and get a better understanding of local market needs. It surely helps SolarUnit to spread its name in European PV markets.
The Differentiated Advantage of Full-Screen Module Remains
DAH Solar’s globally patented product Full-Screen Module has been receiving recognition worldwide with the no-clean feature and the obvious advantage of increasing power generation.
The all-black Full-Screen Module made a perfect combination of industrial engineering and building construction, making it a special favor for European markets, which ended with an increased number of orders among other PV module products in the industry.
Proudly being a Tier 1(Global PV Tier 1 module manufacturer) brand, DAH Solar will always pursue differentiated development, technological innovation, and high-quality products, carrying the mission to create a better clean energy life for users and help the global low-carbon development.
Global Technology Leading PV Enterprise DAH Solar Co., Ltd. focuses on the R&D, manufacturing, and sales of high-efficiency power generation PV modules, integrated PV systems, and solar energy storage systems. DAH Solar committees to provide better solar solutions innovatively. With more and more needs for clean energy, DAH Solar continues to bring a more efficient, convenient, and reliable series of PV products to global users. Technological innovation and patented products With our leading technological innovation and excellent product quality, we enable global users more conveniently and stably to obtain efficient clean solar energy. We have 200 patented technologies used in our PV products. Our global patented product Full-Screen PV module achieves front A-side frameless design, which increases power generation by 6%-15% (field test result published by TUV Nord) compared to the regular PV modules. The world's first integrated PV system, SolarUnit, could maximize the installation area of the rooftop. SolarUnit made the integrated design of modules and inverters come true. SolarUnit provides users with a more efficient, convenient, safer, and beautiful residential PV system. SolarUnit promotes PV products in the era of home PV appliances. World Recognized PV Supplier DAH Solar's products have been sold in more than 100 countries and regions around the world. In Latin America, we have become the TOP 3 well-known PV companies in Brazil. In Europe, the demand for our innovative products, Full-Screen PV Modules, is exceeding supplies. Besides, to provide better service to global customers, we have established our warehouses in many countries and regions, like the EU stock in Rotterdam in the Netherlands. In addition, we have established very convenient purchase channels for global consumers. Customers can purchase DAH Solar’s products through distributors or official websites and E-commercial platforms. Social Responsibilities DAH Solar’s Solar Cells, Modules, and Inverters R&D and Production Factories Bases not only attract a large number of local high-end technical talents but also creates more than 2,000 job positions for local residents. Every year, we hold many social activities, such as donations to charities, responses to the Covid-19 pandemic, contributing to community growth, etc. to advocate for social development. Our ultimate goal is to embrace the era of clean energy to protect the environment and the behalf of mankind. Employee Development DAH Solar is committed to creating a better career development platform for our employees. We seek equity for all genders and ages in the workplace. DAH Solar offers our employees a free team-building trip, annually. We believe that refreshing is another path to creation. DAH Solar is also concerned about the health condition of our employees. That's why we provide our employees with free health checks and a full package of healthcare. At DAH Solar, we treat our employees not only as team assets but as our own families.
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