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World News May 31, 2026

World’s 1st supercritical CO₂ waste heat plant fully online in China

A major clean-energy breakthrough has been achieved in southwest China, where the second unit of the “Carbon One” supercritical carbon dioxide waste heat power project has been successfully connected to the grid.

The project, located at the Shougang Shuicheng steel plant in Guizhou Province, is now the world’s first commercial-scale supercritical CO₂ waste heat power system, with a total capacity of 30 megawatts.

Developed by the China National Nuclear Corporation’s Nuclear Power Institute and partners, the technology captures industrial waste heat from steel production and converts it into electricity more efficiently than traditional steam-based systems.

Officials say the successful operation of both units confirms that the technology is commercially viable and could support wider use in heavy industry for improving energy efficiency and reducing emissions.

Credit : CGTN

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