On May 25th, Unit 6 of Huaneng Shidongkou No.1 Plant successfully passed 168 hours of continuous full load trial operation. At this point, China’s first equal capacity coal-fired power substitution demonstration project was fully completed and put into operation, providing more reliable, clean, and flexible power support for Shanghai’s peak summer vacation.
As a major construction project for energy security in Shanghai, this project will build two 650000 kilowatt high parameter, high efficiency, low emission, and secondary reheat ultra supercritical coal-fired units (Units 5 and 6) in the original factory area of Shidongkou No.1 Plant, replacing four 325000 kilowatt old coal-fired units (Units 1-4). Among them, Unit 5 was completed and put into operation in December last year.

This project follows the construction concept of «efficiency, cleanliness, flexibility, intelligence, and reuse», supporting international advanced coal yard closure technology, and relying on the overall architecture of China Huaneng Smart Power Plant to synchronously carry out the construction of smart power plants. It has obtained a total of 126 patent authorizations (including 22 international patents). The project has overcome difficulties such as small construction sites within the factory area, high difficulty in switching between old and new technologies, and multiple cross operations in production infrastructure. It maximizes the utilization of resources in the original factory area and significantly reduces project costs.
It is reported that the trial operation of Unit 6 of the project shows that compared to the old unit before replacement, the coal consumption for production power supply of the new unit has decreased by about 20%, equivalent to a reduction of 220 grams of carbon dioxide emissions per kilowatt hour. The technical and economic indicators and environmental indicators of the unit have reached the best level of the same type of unit.