Sineng Electric Launches New Central Distributed Inverter for Bifacial Solar Modules

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Leading global solar inverter manufacturer Sineng Electric made headway with the launch of a new central distributed inverter for bifacial solar modules recently in Beijing.

The new product drew wide attention from industry watchers, customers and media organizations.

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Bifacial Solar modules not only collect sunlight on the side facing the light source, but they also collect light on the back side that is reflected from the surface beneath the solar panel and from the environment. Bifacial modules can generate an additional yield between 10 to 30 percent, compared with monofacial modules. However, due to the increased current of each string and seriously string mismatch, bifacial modules do not always perform perfectly due to the limited of traditional inverters when light conditions are optimal. In a move that not only resolves these issues but also facilitates technological progress across the sector, Sineng Electric has created and released a new central distributed inverter compatible with bifacial solar modules.

"Bifacial modules will become a leading force in the industry due to significant improvement in energy yields and reduction in cost. The inverter is the first of its kind, a combination of the extensive expertise we gained as the result of the acquisition of a global top 500 firm, our rich experience in the operation of inverters, and our dedicated efforts in research and development. The solution is compatible with leading P-type PREC and N-type bifacial modules available in the market," said Sineng Electric General Manager of Products, Wang Yuelin, at the forum.

With the higher yields and lower system costs, Sineng Electric's central distributed inverter system (with multi MPPT inputs) has been widely applied in various scenarios. The new central distributed inverter comes equipped with the MPPT combination box designed specially for bifacial modules, capable of supporting an increase in the maximum operating current up to 12.5A and a current gain of over 30 percent on the back side of the panel. The string-level MPPT technology solves issues related to string mismatch caused by an uneven exposure to light on the back side, despite the complex conditions of the surface beneath the solar panel. The power-capacity ratio on the DC side supports extensive and flexible configurations and adapts to the change in capacity (0.9 - 1.3) on the DC side, which is caused by the difference in current gain on the back side. The unit is capable of operating at full capacity at 55 degrees C and addresses the issues related to the high current gain on the back side. In addition, the ability to handle long periods of 1.1X and short periods of 1.2X overload capability evenly matches the overload capabilities of the AC-side transformer and boost circuit. The power supply for the tracking bracket integrated with the delivery system delivers a cost-effective combination of a tracking bracket and bifacial solar modules.

With years of experience in innovation and development, Sineng Electric has been named one of the top three inverter manufacturers in China. The company has also achieved several key technological breakthroughs in the inverter field and built its leading position in terms of research and development, thanks to the development platform and technologies it gained as the result of the acquisition of a global top 500 firm. Looking forward, Sineng Electric plans to continue increasing its investments in research and development, improving its technologies and driving solar to grid parity.

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