This certification attests to the exceptional adaptability and reliability of Sungrow's ESS concerning the European grid network, reinforcing the Company's leading position in the grid-connection technology field.

Sungrow recently received the European standard EN 50549-10 certification issued by TÜV Rheinland. It marks the energy storage industry's first European grid connection compatibility certification for MW-grade high-power energy storage systems (ESS). This certification attests to the exceptional adaptability and reliability of Sungrow's ESS concerning the European grid network, reinforcing the Company's leading position in the grid-connection technology field.

EN 50549-10 is a new grid connection test standard introduced in Europe in August 2023, based on the relevant provisions of EN50549-2 (requirements for connecting power plants in parallel with medium-voltage distribution networks). The standard further clarifies and sets test requirements of ESS in areas such as Low Voltage Ride Through (LVRT) and High Voltage Ride Through (HVRT), frequency deviation tolerance, power quality, reactive power voltage support, fault voltage support, and zero-current continuous grid connection. The primary goal is to effectively ensure the stability and high-quality power supply of the European public power grids.

Leveraging the company's industry-leading power electronics technological resources, Sungrow successfully passed the EN 50549-10 grid connection conformity test by innovatively applying related technologies, including rapid positive/negative sequence detection, real-time positive/negative sequence decoupling, power first-order smooth output technology, and intelligent solutions. Sungrow will continue to drive the digitalization and intelligentization of clean energy facilities in Europe and contribute to developing secure and reliable European power systems with its products and technologies.

About Sungrow

Sungrow Power Supply Co., Ltd. ("Sungrow") is the world's most bankable inverter brand with over 340 GW installed worldwide as of December 2022. Founded in 1997 by University Professor Cao Renxian, Sungrow is a leader in the research and development of solar inverters with the largest dedicated R&D team in the industry and a broad product portfolio offering PV inverter solutions and energy storage systems for utility-scale, commercial & industrial, and residential applications, as well as internationally recognized floating PV plant solutions, NEV driving solutions, EV charging solutions and renewable hydrogen production systems. With a strong 26-year track record in the PV space, Sungrow products power over 150 countries worldwide. Learn more about Sungrow by visiting www.sungrowpower.com.