[The first 650 ℃ coal-fired unit has entered the comprehensive construction stage] On November 8th, China Huaneng announced that the world's first 650 degree Celsius high-efficiency ultra supercritical coal-fired power generation unit - Huaneng Yuhuan Power Plant Phase IV project has completed the first concrete pouring and entered the comprehensive construction stage. The project plans to build one 1 million kilowatt class 650 degree Celsius high-efficiency ultra supercritical single reheat coal-fired power generation unit, with a main steam pressure of 35 megapascals and main steam and reheat steam temperatures reaching 650 degrees Celsius, which is currently the highest parameter for coal-fired power generation in the world. It can significantly improve power generation efficiency, increase power generation efficiency by about 4 percentage points compared to existing units, reduce coal consumption per kilowatt hour by about 10%, and reduce carbon dioxide emissions by about 450000 tons per year. As a major national scientific and technological research project, it adopts the high-temperature alloy new material with independent intellectual property rights independently developed by China Huaneng, realizing the independent controllability of key high-temperature material technology and breaking the traditional thermal efficiency bottleneck. Huaneng Yuhuan Power Plant is a wholly-owned power plant of Huaneng International Electric Power, located in Damaiyu Street, Yuhuan, Taizhou, Zhejiang. It is a supporting project and national key project for the introduction and gradual localization of ultra supercritical unit technology under the national "863" plan. It has previously created multiple national firsts, such as the first domestically produced million kilowatt ultra supercritical coal-fired power generation unit in China being put into operation here on November 28, 2006, and has also completed the national DCS system transformation of the first million kilowatt coal-fired power generation unit. Editor/Cheng Liting

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