Hunan Nuowei Technology Co., Ltd

Basic Overview

• Location: On the main stream of the Wujiang River in Qitan Town, Yanhe Tujia Autonomous County, Tongren City, Guizhou Province. 421 km from Guiyang City and 250.5 km from the Wujiang River's confluence with the Yangtze River.
• Cascade Position: Ninth cascade in the Wujiang River development plan (the last cascade in Guizhou Province). 120.8 km upstream is the Silin Hydropower Station, and 7 km downstream is Yanhe County.
• Drainage Basin: Control basin area of 54,508 km² above the dam site, accounting for 62% of the Wujiang River basin.

• Sales Quantity: 19 sets of grouting recorders, each equipped with flow meters, pressure gauges, density meters, heave observation devices, data logging systems, and data processing software.

• Hydrological Parameters:
  • Average annual flow: 951–966 m³/s
  • Average annual runoff: 30.46 billion m³
  • Normal reservoir elevation: 365 meters
  • Dead water level: 353.5 meters
  • Total reservoir capacity: 910 million m³
  • Regulating storage: 287 million m³
  • Daily regulation reservoir

Engineering Scale and Technical Parameters

• Installed Capacity: 1,120 MW (4 x 280 MW hydro-generator units)
• Annual Power Generation: 4.552 billion kWh
• Guaranteed Output: 348–350 MW
• Project Classification: Class II project; main hydraulic structures are Class II buildings
• Dam Type: Roller Compacted Concrete (RCC) Gravity Dam (maximum height: 101 meters; crest length: 631 meters)
• Spillway System: 7 overflow surface openings
• Navigation Facilities: Vertical ship lift (navigable for 500-ton vessels; designed annual passing capacity: 3.343 million tons)

Construction Timeline

• November 2005: Pre-construction preparation began
• May 2006: Official construction started
• December 2007: First-phase cofferdam completed
• May 11, 2013: First generating unit commissioned
• June 13, 2013: All four units operational (set a national record for hydropower construction by completing commissioning of four units in 34 days, 212 days ahead of schedule for the "four units in one year" goal)
• December 2021: Navigation facilities transferred to the Shatuo Navigation Management Office

Functions and Benefits

• Power Generation: Annual output of 4.552 billion kWh, equivalent to saving 1.4 million tons of standard coal and reducing 3.5 million tons of CO₂ emissions.
• Navigation: Vertical ship lift with a maximum annual capacity of 4.206 million tons, enabling 500-ton vessel passage.
• Comprehensive Benefits:
  • Flood control and irrigation functions
  • Boosted local "hydropower + eco-tourism" development (2024: 37% growth in riverside homestay income)
  • Key node in the "West-to-East Power Transmission" strategy, delivering clean electricity to the Guangdong-Hong Kong-Macao Greater Bay Area

Engineering Features and Innovations

• Strategic Positioning: One of the "Four Water Projects" in the second phase of the "West-to-East Power Transmission" initiative, hailed as the "Dream-Realizing Project" for Wujiang River cascade development in Guizhou.
• Technological Innovations: Overcame challenges in dam construction under complex geological conditions, e.g., pioneering the use of four-grade aggregate RCC technology in dam pouring (first in China's hydropower engineering).
• Engineering Significance: Marked the completion of Wujiang River mainstream hydropower development in Guizhou, achieving the national plan's development goals 12 years ahead of schedule.

Operations and Management

• Operator: Shatuo Power Plant, Guizhou Wujiang Hydropower Development Co., Ltd.
• Establishment Date: May 16, 2013
• Legal Representative: Pan Jian (since June 2021)
• Enterprise Scale:
  • As of 2023: 129 employees, net profit of 140 million yuan
  • 2024: Total social insurance staff increased to 227
• Operational Performance:
  • Revenue reached 1.127 billion yuan in 2022
  • Generated 2.8 billion kWh in 2023, paying 63 million yuan in taxes
  • By May 2025: Participated in 137 bidding projects, holding 123 patents

Relationship with Adjacent Hydropower Stations

• Joint operation with Wujiang Silin Hydropower Station ensures a guaranteed output of 356.6 MW
• Collaborative operation with Goupitan Hydropower Station optimizes downstream cascade efficiency
• As the "finalizing project" of Wujiang River mainstream development, it completes Guizhou's hydropower cascade system

The Shatuo Hydropower Station is not only the "Dream-Realizing Project" for Wujiang River cascade development in Guizhou but also a critical node in the "West-to-East Power Transmission" strategy. Its successful construction provides significant support for clean energy development in Guizhou and Southwest China while balancing navigation, flood control, and ecological protection, playing a vital role in regional socio-economic development and environmental sustainability.