Green Hydrogen Project Tracking - Full-capacity Grid Connection and Power Generation of Guohua Jiangsu Rudong Photovoltaic-Hydrogen-Storage Integrated Project

The first demonstration project of an ecological governance-oriented tidal flat PV project in China, the Guohua Rudong PV-Hydrogen-ESS Integrated Project, has achieved full-capacity grid connection and power generation.

Located in Rudong County, Nantong City, Jiangsu Province, the project utilizes approximately 4,387.5 mu of tidal flats. With a total installed capacity of 400 MW, it includes the construction of booster stations, energy storage facilities, and hydrogen production and refueling stations. The project's average annual on-grid electricity generation is 4,629.34 million kWh. Upon completion and operation, it will reduce carbon dioxide emissions by approximately 309,400 mt annually, equivalent to adding the carbon sequestration capacity of 1.5 West Lake scenic areas. It will effectively contribute to local ecological environmental protection and green, low-carbon development. The project was designed by PowerChina East China Engineering Corporation Limited, a subsidiary of PowerChina, and was constructed under the general contract of PowerChina Zhongnan Engineering Corporation Limited.

As the first PV project for ecological governance of tidal flats in China, it innovates an ecological restoration model of "offshore PV + weed control," pioneering efforts in the ecological governance of Spartina alterniflora and creating a demonstration project for the integration of green PV and ecological weed control along the coast of Jiangsu Province and across the country.

During the construction process, the construction of the onshore booster station and the PV field area were greatly affected by multiple factors such as the original tidal flat terrain and on-site tidal changes, making the construction process extremely challenging. The project team overcame difficulties and creatively solved the construction challenges of the onshore booster station by using steel sheet pile cofferdams combined with well-point dewatering. They designed a new-type elevated vehicle to solve the installation challenges in the PV area. To protect the local marine ecology and clam farming areas, they adapted to local conditions, using approximately 1,800 platform 4-wheel trolleys, and pioneered a "river, sea, land, and river" intermodal transportation solution to address the challenges of submarine cable transportation.

On the vast tidal flats of the Yellow Sea, nearly 700,000 solar panels gently "breathe" with the ebb and flow of the tides. Their annual power generation capacity reaches as high as 468 million kWh, enough to illuminate the brilliant lights of 200,000 households. Meanwhile, the project will also drive the large-scale development of multiple industries, including offshore PV, energy storage, and hydrogen energy, improving and strengthening the local new energy industry chain.