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Harbin Electric Corporation designed and manufactured the world's first 145 MW high-efficiency ultra-supercritical unit for the Shenglong industrial upgrade project implemented by China City Environment Protection Engineering Limited Company. It was the world's first application of ultra-supercritical steam parameters to small and medium-sized units below 200 MW. The unit achieves a power generation efficiency of 43.5%, with an annual power generation of approximately 1.06 billion kWh. It brings direct economic benefits of more than CNY 500 million to the steelworks and reduces carbon dioxide emissions by 854,000 tonnes annually. It marks a new development direction and technical route for high-parameter, high-efficiency small and medium-sized units. With internationally leading technology, it exemplifies Harbin Electric Corporation's technological innovation in small and medium-sized units.