On May 14, the 400 MW fully air-cooled turbogenerator, the largest single-unit capacity in China developed by China's HE Group, successfully completed its final assembly type test and was shipped. The unit demonstrated excellent performance indicators across the board, with its overall technical level leading in China. It will be applied in the Cocodala Combined Heat and Power Project of the Fourth Division of the Xinjiang Production and Construction Corps.

The generator innovatively applies a multi-stage coupled high-efficiency ventilation and cooling system, successfully breaking through the core technical bottleneck in the ventilation and cooling field for large-capacity air-cooled units. By optimizing the layout of the circulating air paths, the R&D team achieved multi-stage coupled high-efficiency heat exchange of the cooling medium, significantly improving the internal heat transfer performance of the generator and notably enhancing its output limit. The generator can adapt to complex operating conditions such as high-altitude environments, wide load ranges, and flexible peak shaving, providing an original technical solution and a benchmark engineering example for the technological upgrade of the new generation of large-capacity fully air-cooled turbogenerators.

With the implementation of the "Action Plan for the Special Upgrading of New-Generation Coal-Fired Power," fully air-cooled turbogenerators, leveraging their advantages in circulating water conservation, flexible peak shaving, high reliability, easy maintenance, and controllable lifecycle costs, have been upgraded from an alternative technology to a mainstream industry choice. Highly aligned with policy direction, they have become the core support for the high-quality development of coal-fired power in water-scarce regions, holding great significance for promoting the construction of new power systems and achieving the "dual carbon" goals.

It is understood that the Cocodala Combined Heat and Power Project is located in Cocodala City, Xinjiang Uygur Autonomous Region, and plans to construct two fully air-cooled turbogenerators, both developed by HE Group's Electric Machinery Company. Upon completion, the project will effectively meet the local electricity load growth demand, significantly enhance the safe and stable operation capability of the regional power grid, and provide a strong power guarantee for the high-quality economic and social development of the border area, yielding significant economic and social benefits.