China unveils first coastal solar-hydrogen project, paving way for major emissions cuts

China has officially launched its first integrated solar-hydrogen farm, located in the tidal flats of eastern China, marking a significant milestone in renewable energy.

The Rudong Offshore Photovoltaic-Hydrogen Energy Storage Project, situated in Rudong County, Jiangsu Province, was connected to the grid on December 31, 2024, Caliber.Az reports citing foreign media.

As the largest of its kind in the country, the project integrates photovoltaic power generation, hydrogen production, energy storage, and refueling capabilities. With an installed capacity of 400 megawatts, the project spans 287 hectares and includes a 220 kV onshore booster station, a 60 MW/120 MWh energy storage system, and a hydrogen production and refueling facility capable of producing 1,500 standard cubic meters of hydrogen per hour, with a refueling capacity of 500 kilograms per day.

Once fully operational in 2025, the facility is expected to generate 468 million kilowatt-hours annually, saving about 151,000 tonnes of standard coal each year. The project will significantly reduce emissions, cutting approximately 309,400 tonnes of CO2, 562.6 tonnes of sulfur dioxide, and 1,125.3 tonnes of nitrogen dioxide.

These reductions will contribute to environmental protection and play a key role in advancing China’s transition to a more sustainable energy system.

The project utilizes the region's coastal tidal flat resources, employing advanced photovoltaic technology and intelligent control systems to maximize energy conversion and storage. Hydrogen production via water electrolysis further enhances energy efficiency, improves grid stability, and bolsters peak-shaving capacity. This groundbreaking project sets a new standard for China's renewable energy future.

By Vafa Guliyeva