On February 15, the GEDI-constructed Guangdong Huadian Shanwei Overseas Chinese Management District new electrochemical energy storage power station project, under an EPC contract, completed a 168-hour full-load trial operation. This milestone marks a crucial step forward in China's engineering application of new energy storage technologies characterized by high safety and efficiency.

The project is located in the Overseas Chinese Management District of Shanwei City, Guangdong Province. It is recognized as a NEA pilot demonstration project for new energy storage, a first-of-a-kind major energy technology equipment project under the fifth batch, a key construction project for 2025 in Guangdong, and a technological innovation research guide project for novel power systems. It has been selected as one of the top ten scientific and technological innovation achievements in the energy industry in 2025. The project involves constructing a 200 MW/400 MWh new electrochemical energy storage power station and a 220kV transmission line. Guangdong Teway Energy Storage Technology Co., Ltd., a subsidiary of GEDI, play a pivotal role in equipment R&D and deliver a critical hybrid energy storage solution combining semi-solid lithium batteries with sodium batteries. The company supply a total of 55MW/110MWh flexible energy storage system for the project.

As a key offshore wind power landing point for the Eastern Guangdong Power Grid, the project employs a high-voltage cascaded large-capacity hybrid energy storage technology combining semi-solid lithium-ion and sodium-ion batteries. It features comprehensive capability management, fire protection, and electrical control systems, integrating multiple functions including peaking, frequency regulation, black start and renewable energy consumption. The system delivers outstanding characteristics such as rapid response, precise regulation, and high safety and reliability. Upon commissioning, the project will serve as critical infrastructure to enhance grid resilience and regulation flexibility. It will provide robust peaking support for the regional power grid, significantly boost power supply capacity, facilitate efficient renewable energy consumption, and contribute to Guangdong's energy structure optimization and the achievement of carbon peaking and carbon neutrality.