Sungrow “1+X” Modular Inverter

Sungrow, the global leading inverter solution supplier for renewables, officially launched the brand-new central inverter — “1+X” Modular Inverter in a grand event hosted in Aerocity, New Delhi earlier this year. “1+X” Modular Inverter is the most innovative central inverter solution that Sungrow is promoting worldwide, and it is expected to lead the next generation central inverter designation for large-scale utility solar plants. The cutting-edge technologies of this product center on one keyword— “Modularization”.

“1+X” inverter solution boasts modularization at the inverter, system, and component levels. Three-level modularization makes power plant design more flexible and post O&M more convenient in the future. Firstly, the “1+X” modular inverter features a 1.1MW single unit as the minimum, but the block capacity can be expanded to the max. 8.8 MW by combining 8 units just like building blocks. Customers can choose from 1.1MW to 8.8 MW to meet their best demands.

Secondly, the system modularization makes PV module configuration more flexible to extend. The inverter supports a maximum of 2 times DC/AC ratio. 1+X modular inverter has 42% more MPPT than the traditional central inverters, and it realizes the string-level management by new wireless DC combiner. Increased MPPT and more refined management lead to higher electricity generation.

This solution’s DC/ESS interface also supports connecting to the energy storage system, enabling customers to enjoy the storage function for future energy usage. Thirdly, the component modularization realizes the plug-and-play function, reducing the maintenance from 6h to 2h. Moreover, since each inverter also works in an individual unit, the onsite backup inverter can be directly replaced if failure occurs. Hence, the three-level modularization, once again, sets this gigantic product apart from others.