A large integrated solar-hydrogen energy farm in the tidal flat area of eastern China has officially started operations, as announced by its owner, Guohua Energy Investment Co., Ltd., a subsidiary of CHN Energy Investment Group (CHN Energy).
Named the Rudong offshore photovoltaic-hydrogen energy storage project, it is the largest of its kind in China. The facility, located in Rudong County, Jiangsu Province, was connected to the grid and began operations on December 31, 2024, according to CHN Energy’s press release.
This project represents China’s first comprehensive initiative combining energy utilization with coastal ecological management. It integrates photovoltaic power generation, hydrogen production, hydrogen refueling, and energy storage systems.
With a total installed capacity of 400 megawatts, the Rudong project covers 4,300 mu (287 hectares) and includes a 220 kV onshore booster station, a 60 MW/120 MWh energy storage unit, and facilities for hydrogen production and refueling, capable of producing 1,500 standard cubic meters of hydrogen per hour and refueling 500 kilograms daily.
Upon reaching full operational capacity in 2025, the project is expected to generate 468 million kilowatt-hours of electricity annually, equivalent to saving about 151,000 tonnes of standard coal per year.
The project will also significantly reduce emissions, cutting approximately 309,400 tonnes of carbon dioxide, 562.6 tonnes of sulfur dioxide, and 1,125.3 tonnes of nitrogen dioxide annually. This contributes to environmental protection and highlights a milestone in transitioning to a sustainable energy model.
The Rudong project leverages the region’s coastal tidal flat resources, using advanced photovoltaic technology and intelligent control systems to maximize energy conversion and storage efficiency.
By incorporating hydrogen production through water electrolysis, the project enhances overall energy utilization efficiency, boosts the regional power grid’s peak-shaving capacity, and stabilizes the electricity supply, CHN Energy stated
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