On August 31, 2023, Datang Shandong Yuncheng 630℃ ultra-supercritical secondary reheat power demonstration project was fully launched. The project installs two 1 million kilowatt ultra-supercritical secondary reheat coal-fired power generation units, which are the single-shaft million kilowatt thermal power units with "the highest pressure, the highest temperature, the highest efficiency and the lowest coal consumption" in China.