en.Wedoany.com Reported - Recently, the 300 MW/600 MWh independent energy storage station in Gaoyi County, Shijiazhuang, a key project under Hebei Province's "14th Five-Year Plan" for energy storage development and constructed by the Fengqiao Company of the bureau, achieved full-capacity grid connection. This project is a benchmark project for Shijiazhuang's new energy system and an important carrier for promoting coordinated port-energy development relying on Shijiazhuang International Land Port.
Located in Fucun Town, Gaoyi County, the project covers approximately 43 mu (about 2.87 hectares) and is equipped with a 220 kV step-up substation and a full set of auxiliary energy storage facilities. The station comprises 12 energy storage units, equipped with 108 battery compartments and 12 grid-connected compartments, and features core equipment such as a 220 kV main transformer, GIS switchgear, and SVG static var generators, with comprehensive hardware configuration and advanced technical standards.
As a grid-side independent energy storage project, the station offers multiple functions including peak shaving and valley filling, frequency and voltage regulation, grid backup, and new energy consumption. It can store surplus wind and solar energy during low electricity demand periods and release energy at the millisecond level during grid peaks or fluctuations to ensure supply. According to estimates, the station can regulate approximately 200 million kWh of electricity annually, saving 63,000 tons of standard coal and reducing carbon dioxide emissions by 158,000 tons each year, yielding significant ecological and social benefits.
Construction of the project began in May 2025, during which multiple challenges were overcome. Facing difficulties such as concentrated rainfall during the flood season at the eastern foot of the Taihang Mountains, dense foundation points for cabin bodies, and the complexity of lifting large equipment, the project team developed a scientific construction plan, divided multiple work faces for parallel construction, and ensured construction quality through staggered pouring and refined curing. During equipment installation, the 58-ton battery compartments and 203-ton main transformer were positioned with millimeter-level precision, GIS equipment installation deviations were strictly controlled within 0.5 mm, and all processes passed acceptance inspections on the first attempt. In April 2026, the project completed equipment installation and electrical construction, and after multiple rounds of commissioning, successfully achieved full-capacity grid connection.
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