en.Wedoany.com Reported - At 0:36 on June 6, Unit 2 of the Guizhou Pannan 2×660 MW Low-Calorific Value Coal Power Generation Project achieved its first grid connection successfully. All systems of the unit operated smoothly, with key parameters indicating excellent performance, marking the official integration of the unit into the power grid and its capability to transmit electricity externally. With this, both units of the project have completed grid connection, and full commercial operation is imminent.
The project is undertaken by PowerChina Guizhou Engineering Company as the lead of the EPC consortium. Previously, Unit 1 successfully passed the 168-hour full-load trial operation on April 15. From the first concrete pouring to the grid connection of Unit 1, the project set a record for the shortest construction period for circulating fluidized bed units of the same capacity in China, achieving it in 20 months and 8 days. Unit 2 replicated this efficient pace, completing the process from boiler hydrostatic test to ignition and pipe blowing in just 98 days, 15 days faster than Unit 1, once again setting a new record for the construction period of circulating fluidized bed units of the same capacity in China.
Since the project commenced in May 2024, the team has leveraged the mature construction experience of Unit 1 to address challenges such as the complex equipment structure of Unit 2, intensive overlapping processes, local weather complexities, and multi-disciplinary cross-construction. They continuously optimized the EPC integrated management model, refining the construction plan down to daily and specific area levels. Key milestones include: plant power reception on December 4, 2025; boiler hydrostatic test on February 5, 2026; turbine casing closure on February 15, 2026; and ignition and pipe blowing on May 7, 2026.
By closely monitoring key milestones, strengthening resource guarantees, strictly controlling safety and quality, establishing special task forces for targeted operations, optimizing construction techniques, increasing work fronts, and creating a green channel for equipment supply, the project department ensured that every step from the start of construction to grid connection for Unit 2 passed smoothly.
Going forward, the project department will adhere to the bottom line of safety and quality, coordinate resources from all parties, steadily advance unit optimization and commissioning, and strive for the 168-hour full-load trial operation target, aiming to build a benchmark ultra-supercritical circulating fluidized bed power station project in China that is technologically advanced, safe and stable, low-carbon, and efficient.
Upon full commercial operation, 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, and will create about 1,200 new local jobs. The project will become an important supporting and regulating power source for Guizhou Province and even the southwestern region, playing a key role in improving grid reliability, ensuring safe and stable power supply, and assisting Liupanshui City in building an integrated "wind, solar, hydro, thermal, and storage" comprehensive energy base.
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