en.Wedoany.com Reported - The No. 2 unit of the Guizhou Pannan 2×660 MW Low-Calorific-Value Coal Power Project, constructed by the Ninth Bureau of Hydropower and Water Resources, achieved a successful first grid connection.
Located in Panzhou City, Liupanshui City, Guizhou Province, the project has a total installed capacity of 1,320 MW, featuring two 660 MW high-efficiency ultra-supercritical circulating fluidized bed generating units. After the grid connection of Unit 2, all systems are operating stably, with core parameters performing excellently, and it is now capable of transmitting power to the grid. Previously, Unit 1 of the project had successfully completed a 168-hour full-load trial operation. With the smooth grid connection of Unit 2, both units of the project have completed their grid connection tasks, and construction has fully entered the sprint phase for dual-unit commercial operation.
Since the start of construction, facing challenges such as complex geological conditions, tight schedules, and multi-process cross operations, the project team of the Ninth Bureau of Hydropower and Water Resources scientifically coordinated human and material resources, strictly controlled the three core aspects of construction safety, quality, and technology. Through systematic construction plans, refined technical management, and innovative production processes, they completed key and difficult projects including the main plant auxiliary buildings, coal storage shed, coal handling system, water treatment system, fire protection, special fire protection, water supply and drainage, and comprehensive pipeline network, achieving a series of innovative technical results in practice. During the grid connection process of Unit 2, from generator voltage boosting, synchronization adjustment to precise closing and grid connection, each procedure was meticulously managed, and every set of data was monitored in real time, effectively ensuring the smooth implementation of the grid connection. Tests showed that key indicators such as vibration and temperature rise of the unit after grid connection all met standard specifications, with overall equipment performance performing well.
The successful first grid connection of Unit 2 has laid the foundation for the project to achieve high-quality dual-unit commercial operation. After full commissioning, the project is expected to consume approximately 3.6 million tons of low-calorific-value coal such as coal slime and coal gangue annually, with an estimated annual power generation of 6.6 billion kWh. It will become an important supporting and regulating power source for Guizhou Province and the China Southern Power Grid.
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